Home / California / Pittsburg
Diamond Ridge Healthcare Center
2351 Loveridge Road, Pittsburg, CA 94565 · Contra Costa County · (925) 427-4444
120 certified beds, about 113 residents a day · For profit - Limited Liability company · Medicare and Medicaid since 1987
CMS Care Compare ratings, data as of September 1, 2026 · CCN 555287 · See it on Medicare.gov · Compare with other homes
The record in brief
At its most recent standard inspection, on August 15, 2024, inspectors cited 9 health deficiencies (the California average is 15.6, the national average 9.2).
None of its 46 health citations since July 2019 was rated as actual harm or immediate jeopardy.
CMS lists no fines against this home in the last three years.
Nurses and nurse aides worked 4.30 hours per resident per day, against 4.52 across California and 3.86 nationally. Registered nurses accounted for 0.49 of those hours.
24.6% of nursing staff left within the year CMS measured (California average 36.7%).
CMS links it to David Johnson, an affiliated group of 48 nursing homes.
Health inspections
Federal rules call for a standard inspection at least every 15 months, plus a visit whenever a complaint is filed. Each mark below is one citation, colored by how serious inspectors rated it. How to read a citation.
Under each citation, the quoted text is the inspector's own summary from the federal statement of deficiencies (CMS form 2567), word for word apart from a privacy scrub; CMS removes residents' and staff names before it publishes the text. The full notes are on Medicare.gov.
Where its citations fall on CMS's grid
CMS rates every citation by how much harm it caused (rows) and how many residents it touched (columns). The count in each box is this home's, across all 46 health citations on file.
January 16, 2026Complaint inspection · 2 citations
- D Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights.
Inspectors wroteBased on observation, interview, and record review, the facility failed to treat Resident 1 with respect and dignity when Certified Nursing Assistant (CNA) 1 did not wash Resident 1's buttocks when CNA 1 gave Resident 1 a shower. This failure resulted in Resident 1 feeling upset and angry. During an interview on 1/13/26 at 11:07 a.m., with Resident 1, the resident stated CNA 1 did not wash her buttocks when CNA 1 gave her a shower on 12/27/25 at 10 a.m. Resident 1 stated she asked CNA 1 to wash her buttocks because the resident could not reach it. Resident 1 stated CNA told her that CNA 1 did not want to hurt her back if CNA 1 bent too much to wash Resident 1's buttocks. Resident 1 stated she felt upset and angry. [...]
- D Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents.
Inspectors wroteBased on interview, and record review, the facility failed to ensure Resident 2's family member (FM) 1 was provided proper training in the use of broda wheelchair (a broda wheelchair is a specialized, highly adjustable positioning wheelchair). This failure resulted in Resident 2 falling from the broda wheelchair and hitting her face on the floor while being wheeled by FM 1. During an interview on 1/13/26 at 10:14 a.m., with Resident 2, the resident stated that on 12/16/25, while being wheeled by FM 1, she fell from her wheelchair and hit her face in the floor. Further stated her fall could have been prevented if the facility trained FM 1 on how to safely and properly wheel Resident 2 with the broda wheelchair. [...]
December 29, 2025Complaint inspection · 1 citation
- D Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident.
Inspectors wroteBased on interview and record review, the facility failed to ensure the physician and responsible party (RP) were promptly notified for one of three sampled residents (Resident 1) when Resident 1 had respiratory distress (difficulty breathing). This failure had the potential for Resident 1 to develop further exacerbated medical complications and/or need for emergency medical treatment at the acute hospital. During a review of Resident 1's admission Record, dated 12/29/25, indicated Resident 1 was admitted to the facility on [DATE] with diagnoses that included asthma (asthma is a long-term lung disease that makes it difficult to breathe. The tubes that carry air in and out of the lungs become swollen, narrow, and produce extra mucus, similar to trying to breathe through a very thin or clogged straw). [...]
August 15, 2024Standard inspection, Complaint inspection · 9 citations
- F Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
Inspectors wroteBased on observation, interview, and record review the facility failed to store and prepare foods in a sanitary manner that prevented foodborne illness for the facility when: 1. Eleven unlabeled and undated sandwiches were stored in the refrigerator, 2. Multiple food items were stored in the dry storage room beyond use by date, and 3. Two outdated sandwiches and eight grapes with mold was stored on Resident 54's bedside table. These failures had the potential for residents to be exposed to food borne illness.
- E Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted
Inspectors wroteBased on interview and record review, the facility failed to timely develop and provide a baseline care plan for three of 32 sampled residents (Resident 108, 109, and 363) when the baseline care plans were not developed within 48 hours of Resident 108, 109 and 363's admission and the baseline care plan written summaries were not provided to the Resident 108, 109, 363 and the representatives. This failure had the potential to reduce the continuity of care and communication between Resident 108, 109, 363, the representatives, and the facility staff.
- E Provide care and assistance to perform activities of daily living for any resident who is unable.
Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure four of four sampled residents (Residents 28, 21, 63 and 84) received necessary care to maintain good grooming and personal hygiene when: 1. Resident 28 had long facial hair and long fingernails with black matter underneath, 2. Resident 21 had long fingernails with black matter underneath, 3. Resident 63 had long, thick facial hair, and 4. Resident 84 had long facial hair. This failure resulted in Residents 28, 21, 63 and 84 at risk for skin irritation and infection.
- E Provide and implement an infection prevention and control program.
Inspectors wroteBased on observation, interview, and record review, the facility failed to maintain and observe infection control practices when: 1. Certified Nursing Assistant (CNA) 4 did not wear face shield inside COVID-19 isolation room, 2. CNA 5 did not perform hand hygiene before entering Resident 166's room, 3. a glucometer (a device used to check blood sugar level) was stored inside the medication cart had traces of dark red stains around it, 4. a tray full of multiple single-use lancet supplies (a small sharp device that pricks the skin to draw a blood sample for testing blood sugar levels), a bottle of blood sugar test strips, alcohol pads and a glucometer device was placed on top of Resident 35's bed was not disinfected by Licensed Vocational Nurse (LVN) 4 after use, 5. [...]
- D Encode each resident’s assessment data and transmit these data to the State within 7 days of assessment.
Inspectors wroteBased on interview and record review, the facility failed to ensure one of three closed resident records sampled (Resident 112) was not coded correctly on the Minimum Data Set (MDS-a standardized assessment tool used to direct health care needs) when Resident 112 was discharged home. This deficient practice resulted in incorrect data transmitted to Centers for Medicare and Medicaid Services (CMS) regarding Resident 112's discharge status.
- D Provide the appropriate treatment and services to a resident who displays or is diagnosed with dementia.
Inspectors wroteBased on interview and record review, the facility failed to develop new interventions to address behavioral care and treatment for one of 32 sampled residents (Resident 264) with dementia (a disorder of mental processes caused by brain disease or injury and marked by memory disorder, personality changes, and impaired reasoning) when Resident 264 exhibited physical and/or verbal aggression towards others 24 days of out 31 days in May 2024. This deficient practice had the potential for Resident 264 to harm herself and other residents in the facility.
- D Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
Inspectors wroteBased on observation, interview and record review, the facility failed to ensure one of one sampled resident (Resident 364) received Cromolyn Sodium Ophthalmic Solution (a prescription eye drop medication used to treat allergic eye conditions) according to physician's order. This failure resulted in Resident 364 not receiving appropriate treatment to control eye allergy symptoms and experiencing very itchy eyes.
- D Implement gradual dose reductions(GDR) and non-pharmacological interventions, unless contraindicated, prior to initiating or instead of continuing psychotropic medication; and PRN orders for psychotropic medications are only used when the medication is necessary and PRN use is limited.
Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure one of five sampled residents (Resident 52) was free from unnecessary medication, when Resident 52 was prescribed and given Risperidone (medication to treat symptoms of schizophrenia (a mental illness that causes disturbed or unusual thinking, loss of interest in life, and strong or inappropriate emotions)) and did not have schizophrenia. This failure resulted in Resident 52 being administered an unnecessary medication and had the potential for increased morbidity (the condition of suffering from a disease or medical condition) and mortality (death).
- D Ensure drugs and biologicals used in the facility are labeled in accordance with currently accepted professional principles; and all drugs and biologicals must be stored in locked compartments, separately locked, compartments for controlled drugs.
Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure safe medication storage and labeling practices with census of 110, when: 1. Resident 5's inhalation medication with limited shelf life after opening was not dated for beyond used date in medication cart #2b, and 2. Resident 59's intravaginal (insertion through the vagina or birth canal) medication was stored together with the oral medications in medication cart #2a. These failures had the potential to contribute to unsafe use of medications and potential for medication error.
April 17, 2024Complaint inspection · 1 citation
- E Protect each resident from all types of abuse such as physical, mental, sexual abuse, physical punishment, and neglect by anybody.
Inspectors wroteBased on observation, interview, and record review, the facility failed to protect one of three sampled residents (Resident 1) from physical abuse when Certified Nursing Assistant 1 (CNA 1) raised her arm at Resident 1, as if she was to strike Resident 1. CNA 1 had previously exhibited aggressive verbal behavior towards Resident 4 and 5. This failure placed Resident 1 at risk for emotional and psychological distress.
November 1, 2023Complaint inspection · 1 citation
- E Immediately tell the resident, the resident's doctor, and a family member of situations (injury/decline/room, etc.) that affect the resident.
Inspectors wroteBased on observation, interview, and record review, for one of three sampled residents (Resident 1), the facility failed to notify and consult with the physician when Resident 1 was unable to sleep despite the use of sleep medication. This failure potentially contributed to increase in episodes of negative behavior and falls and had the potential to result in delayed modification of treatment regimen.
October 17, 2023Complaint inspection · 2 citations
- E Implement gradual dose reductions(GDR) and non-pharmacological interventions, unless contraindicated, prior to initiating or instead of continuing psychotropic medication; and PRN orders for psychotropic medications are only used when the medication is necessary and PRN use is limited.
Inspectors wroteBased on interview and record review, for one of two sampled residents (Resident 2), the facility failed to ensure Resident 2 was administered olanzapine (treats psychosis, a mental illness), lexapro (anti-depressant, treats depression) and trazodone (anti-depressant) with adequate monitoring of adverse effects from the medications. This failure had the potential to result in delayed management of adverse effects and unnecessary use of medication.
- D Ensure each resident receives and the facility provides food prepared in a form designed to meet individual needs.
Inspectors wroteBased on observation, interview, and record review, for one of two sampled residents (Resident 1), the facility failed to ensure Resident 1, who was at risk for aspiration, was provided honey thick liquids (thicker than nectar thick, less pourable from a cup or a bowl) as ordered by the physician when nectar thick consistency liquid (easily pourable than honey thick, like thicker cream soups) was served. This failure had the potential to result in aspiration (when food or liquid enters the airway and goes into the lungs).
April 15, 2022Standard inspection · 16 citations
- E Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted
Inspectors wroteBased on interview and record review, the facility failed to have a baseline care plan for four of five sampled residents when Residents 41, 254, 255, and 257 did not have baseline care plans within 48 hours of admission. This deficient practice had the potential to decrease the continuity of care and communication between care givers resulting in poor quality care and potential adverse outcomes.
- E Provide enough nursing staff every day to meet the needs of every resident; and have a licensed nurse in charge on each shift.
Inspectors wroteBased on observation, interviews, and record review, the facility failed to maintain sufficient staffing to provide care for five of five sampled residents, Resident 13, Resident 38, Resident 58, Resident 254, and Resident 255. This deficient practice resulted in Residents not getting call lights answered, not getting showers, not having assistance to use the bathroom which lowers the quality of care and the potential to cause an accident and psychosocial harm.
- E Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures.
Inspectors wroteBased on interview and record review , the facility failed to follow the policy and procedure for Medication Regimen Review to act upon the Consultant Pharmacist's (CP) report of medication irregularity for one (Resident 84) sampled resident when Resident 84 CP recommendation for use of quetiapine (Seroquel- antipsychotic medication) was not followed up in a timely fashion. {According to the manufacturer of Seroquel, elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Seroquel not approved for use in psychotic conditions related to dementia. Although causes of death varied, most of the deaths appeared to be related to cardiovascular e.g. heart failure, sudden death}. [Reference: [...]
- E Ensure food and drink is palatable, attractive, and at a safe and appetizing temperature.
Inspectors wroteBased on observation and interview, the facility failed to serve palatable food when meatballs were served for lunch that lacked flavor. This deficient practice had the potential to decrease meal enjoyment and residents to decline to eat.
- E Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
Inspectors wroteBased on observation, interviews and record review, the facility failed to follow proper sanitation and food storage practices when: a. Kitchen floor tiles had brownish black residual discoloration, b. Two dishwasher racks had brownish/black discoloration, c. Ten cans of applesauce had used-by-date that expired 9/30/21. These deficient practices had the potential for an unsanitary food environment or serving expired food resulting in foodborne illness.
- E Provide and implement an infection prevention and control program.
Inspectors wroteBased on observation, interview, and record review, the facility failed to follow infection control practices during storage and handling of resident's respiratory equipment for four of four sampled residents. For Resident 255, Resident 256, and Resident 257, their oxygen cannula tubing was not dated for staff to know when the next tubing change should occur. For Resident 254, the Continuous Positive Airway Pressure (C-PAP, a machine to keep the airway open while sleeping) mask and tubing were undated and left exposed to the air on the night stand. This failure had the potential for the spread of infection and cross-contamination.
- D Ensure each resident receives an accurate assessment.
Inspectors wroteBased on interviews and record review, the facility failed to ensure the Minimum Data Set (MDS-Resident Assessment and Care Screening tool used to guide care), was accurate for two ( Resident 82 and 90) sampled residents when Resident 82 and 90's preadmission screening for serious mental illness was not coded accurately. This deficient practice had the potential for residents to not received appropriate mental health care and services.
- D Develop and implement a complete care plan that meets all the resident's needs, with timetables and actions that can be measured.
Inspectors wroteBased on interview and record review the facility failed to develop a comprehensive, person-centered care plan with measurable objectives and goals for dialysis (artificial kidney machine to remove waste products and excess fluids) care for one (Resident 88) of one sampled resident. This deficient practice had the potential to negatively impact Resident 88's quality of life, and quality of care and services received.
- D Provide care and assistance to perform activities of daily living for any resident who is unable.
Inspectors wroteBased on observation, interview, and record review, the facility failed to provide podiatry services (foot care including cutting of toenails) for one of two sampled residents (Resident 33). This failure had the potential to cause injury including ingrown toenails and scratches to feet and legs.
- D Provide safe and appropriate respiratory care for a resident when needed.
Inspectors wroteBased on observation, interview, and record review, the facility failed to obtain respiratory care orders or follow orders for three of four sampled residents when Resident 254 did not have an order for C-PAP (a machine that provides continuous positive airway pressure to keep airway open while sleeping). Resident 256 did not have the correct flow of oxygen being delivered, and Resident 257 did not have an order for oxygen. This failure had the potential to cause harm by delivering too much oxygen to Resident 256 with chronic obstructive pulmonary (lung) disease (COPD) or giving unnecessary supplemental oxygen or C-PAP to Resident 257.
- D Provide safe, appropriate pain management for a resident who requires such services.
Inspectors wroteBased on observation, interview and record review, the skilled nursing facility did not effectively manage the pain for one of 20 residents (Resident 155). Resident 155 did not receive pain medication as ordered by the doctor. This failure resulted in unnecessary pain for Resident 155.
- D Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
Inspectors wroteBased on interview and record review, the facility failed to consistently supply a medication prescribed by a physician for one (Resident 9) of five sampled residents. This failure resulted in Resident 9 experiencing nausea, dizziness and headaches. A review of Resident 9's Face sheet (document with residents' general information) indicated an initial admission date of 3/2/17 with multiple diagnoses including, chronic pain and neuropathy (a condition causing weakness, numbness, and pain from nerve damage). During an interview on 4/11/22 at 12:45 p.m., with Resident 9, Resident 9 stated recently, there were missed multiple doses of Nortriptyline (medication used to treat nerve pain and depression) because the facility ran out. Resident 9 stated with missed doses of the medication, resident felt nauseous, dizzy and got headaches. [...]
- D Implement gradual dose reductions(GDR) and non-pharmacological interventions, unless contraindicated, prior to initiating or instead of continuing psychotropic medication; and PRN orders for psychotropic medications are only used when the medication is necessary and PRN use is limited.
Inspectors wroteBased on interviews and record review, the facility failed to ensure two sampled residents (Resident 60 and 84) were free from unnecessary drugs as follows: 1. Resident 60 was administered buspirone (antianxiety) without adequate monitoring of behavior manifestations and medication side effects. 2. Resident 84 was administered quetiapine (Seroquel- antipsychotics) without adequate monitoring of behavior manifestations and medication side effects. Definition: A psychotropic drug is any drug that affects brain activities associated with mental processes and behavior. According to the manufacturer of Seroquel, elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Seroquel not approved for use in psychotic conditions related to dementia. [...]
- D Provide sufficient support personnel to safely and effectively carry out the functions of the food and nutrition service.
Inspectors wroteBased on interviews and record review, the facility failed to ensure the skills competency evaluations were completed for dietary staff. The dietary Aide (DA) and one [NAME] (CK) competency skills evaluations were not completed for providing the residents' food services. This deficient practice had the potential to result in unsafe food preparation practices.
- D Keep all essential equipment working safely.
Inspectors wroteBased on observation, interview, and record review, the facility failed to maintain one (Resident 59) sampled resident's wheelchair in good working condition when Resident 59's wheelchair was squeaky and difficult to maneuver. This deficient practice resulted in Resident 59 having difficulty moving around the facility in his wheelchair.
- C Ensure staff are vaccinated for COVID-19
Inspectors wroteBased on interview and record review, the facility failed to follow the policy and procedure (P&P) for staff requesting COVID-19 (a contagious respiratory infection mainly affecting the lungs) vaccine religious exemption. This failure had the potential for unvaccinated staff to work in the facility without the administrators' and other staff awareness which could expose residents and staff to COVID-19.
July 18, 2019Standard inspection · 14 citations
- E Provide and implement an infection prevention and control program.
Inspectors wroteBased on observation, interview and record review, the facility failed to ensure the infection control program was implemented and to use the proper sanitary technique when: 1. Registered Nurse/Nursing Supervisor (NS 1) used gloves that was removed from her uniform pocket to clean an opened wound and applied a dressing. 2. One staff used their bare hands to cut a biscuit while serving breakfast. 3. Four of seven staffs' health records did not have proof of their vaccination against Measles, Mumps and Rubella (MMR-contagious viral infections) and Tdap (Tetanus, Diphtheria, Pertussis-whooping cough) which are communicable bacterial infections, with the exception of Tetanus. These failures had the potential for the transmission of infection.
- D Honor the resident's right to request, refuse, and/or discontinue treatment, to participate in or refuse to participate in experimental research, and to formulate an advance directive.
Inspectors wroteBased on interview and record review, the facility failed to implement the Advance Directive (legal document with written instructions for the provision of health care) policy at the time of admission for two (Residents 55 and 209) of 30 sampled residents, or their legal representative about future healthcare choices, and name a person to make decisions when the resident is unable to do so. For Residents 55 and 209, this failure resulted in not verifying if there were existing advance directives for healthcare to guide choices for doctors and caregivers or contact the resident/representative if they wish assistance in formulating an advance directive.
- D Provide care and assistance to perform activities of daily living for any resident who is unable.
Inspectors wroteBased on observation, interview, and record review, the facility failed to provide fingernail care and nail hygiene for two (Resident 79 and 85) of 30 sampled residents as follows: 1. Resident 79 had hand contractures (the shortening and hardening of muscles, tendons, or other tissue, often leading to deformity and rigidity of joints), and long curved fingernails that were digging into the resident's right palm. 2. Resident 85 had long fingernails with brownish residue underneath the nails and chipped nail polish. These failures had the potential for nail bed injury, poor skin integrity, and harboring dirt and bacteria underneath the fingernails that could contribute to the spread of infection.
- D Provide appropriate treatment and care according to orders, resident’s preferences and goals.
Inspectors wroteBased on observation, interviews, and record review, the facility failed to ensure one (Resident 79) of 30 sampled residents received restorative care services (assists patient to gain strength and mobility) according to the comprehensive care plan. For Resident 79, staff failed to apply a hand, palm roll for protection and intervention for contractures (shortening and hardening of muscles, tendons, or other tissue, often leading to deformity and rigidity of joints). This failure had the potential to cause further decline of range of motion (ROM), joint mobility, and skin integrity.
- D Assist a resident in gaining access to vision and hearing services.
Inspectors wroteBased on interview and record review, the facility failed to provide assistance and arrange services to restore the hearing aids for one (Resident 7) of 30 sampled residents to maintain hearing ability . This failure resulted in no services to assist with repairing the faulty hearing aid and caused Resident 7 frustration due to impaired communication with staff and others.
- D Ensure that feeding tubes are not used unless there is a medical reason and the resident agrees; and provide appropriate care for a resident with a feeding tube.
Inspectors wroteBased on observation, interview, and record review, for one (Resident 66) of 30 sampled residents, the facility failed to elevate the head of bed (HOB) to 30-45 degrees to prevent potential complications while receiving enteral nutritional feeding (liquid formula via the gastrointestinal tract) through the percutaneous endoscopic gastrostomy (PEG) tube (a surgically placed tube into the patient's stomach). This failure had the potential for aspiration (fluids entering the windpipe) or aspiration pneumonia (lung infection).
- D Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure controlled medications were reconciled (count verification) to prevent potential diversion or tampering when one of five medication carts (Med Cart 1 A) had a blister-pack (pills stored in bubble seal and popped out through a paper or foil backing) of Hydrocodone (opioid pain medication) had a torn backing exposing the drug. In addition, one of five medication carts had no completed Controlled Drug-Count Record. These failures had the potential for unauthorized access, diversion, and abuse of controlled substances.
- D Ensure a licensed pharmacist perform a monthly drug regimen review, including the medical chart, following irregularity reporting guidelines in developed policies and procedures.
Inspectors wroteBased on observation, interview, and record review, the facility failed to follow the policy for Medication Regimen Reviews (MRR) for one (Resident 46) of thirty sampled residents when the antidepressant medication was not reviewed monthly. This deficient practice had the potential to result in physical, mental or psychosocial harm for Resident 46.
- D Ensure each resident’s drug regimen must be free from unnecessary drugs.
Inspectors wroteBased on observation, interview, and record review, the facility failed to provide an environment free from unnecessary drugs for three (Resident 46, 85, 93,) of 30 sampled residents as follows: 1. For Resident 46, an antidepressant (Paxil) was ordered without a medical indication for its use. 2. For Resident 85, an antipsychotic (Seroquel) medication was administered without supporting documentation for its continued use. 3. For Resident 93, a sedative medication was ordered with no monitoring of hours of sleep and adverse effects of the drug. These deficient practices had the potential for physical, mental or psychosocial harm.
- D Ensure drugs and biologicals used in the facility are labeled in accordance with currently accepted professional principles; and all drugs and biologicals must be stored in locked compartments, separately locked, compartments for controlled drugs.
Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure drugs and biologicals were labeled, stored, and secured in accordance with the facility's policy as follows: 1. An opened bottle of Procrit [used to treat anemia (low red blood cell count)] was expired, unlabeled, and had no opened date. 2. A half bottle of expired anticholinergic Glycopyrrolate (reduces excessive drooling) medication was stored with currently used medications in the top drawer of Medicine Cart 1 C. 3. One of two treatment carts was left unlocked and unattended. These practices had the potential for reduced potency of the medications due to improper storage, and placed residents at risk for accidental use or ingestion of topical medications when left unlocked.
- D Provide timely, quality laboratory services/tests to meet the needs of residents.
Inspectors wroteBased on observation, interview, and record review, the facility failed to provide safe storage of laboratory test supplies when expired laboratory sample collection kits were stored with currently used laboratory test kits. This failure had the potential for inaccurate test results and affect the medical provision of care.
- D Provide each resident with a nourishing, palatable, well-balanced diet that meets his or her daily nutritional and special dietary needs.
Inspectors wroteBased on observations, interviews, and record reviews, the facility failed to provide residents with a nourishing, well balanced diet that meets their daily nutritional intake and special dietary needs for two (Residents 16 and 162) of 30 sampled residents when: 1. Resident 16 did not receive his diet vanilla pudding and low sugar house shake. 2. Resident 162 did not receive his preferred scrambled eggs and biscuit. This failure resulted in residents not meeting their dietary needs and meals preferences.
- D Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
Inspectors wroteBased on observation, interview, and record review, the facility failed follow the policy and procedure to store, clean floors, and keep equipment under sanitary conditions when: - The Kitchen floor tiles had brown sediments and drainage pipe area had yellowish buildup. - The Ice machine had pink-white build up on the front panel cover plate, back plate, and around the condensing unit. - Emergency food supplies were missing eight cans of beef steak - The food processor, mixing bowl, and slicer had white & brown sediment. These failures had the potential to result in waterborne illnesses from the unsanitary ice machine, contamination from using unclean cooking equipment or not enough supplies to meet emergency preparedness.
- D Safeguard resident-identifiable information and/or maintain medical records on each resident that are in accordance with accepted professional standards.
Inspectors wroteBased on observations, interviews, and record reviews for three (Residents 160, 93, and 161) of 30 sampled residents, the facility failed to ensure the clinical records contained accurate health status information as required. 1. For Residents 160 and Resident 93, a care plan for the pacemaker (device to help control abnormal heart rhythms) did not contain the type of pacemaker, set rate and insertion date. This failure had the potential for not detecting a pacemaker malfunction. 2. For Resident 161, there was no complete labeling with date/time and initialed by the registered nurse (RN) for IV (intravenous, into the vein) antibiotic medication. This failure had the potential for medication errors.
Fire safety inspections
25 fire safety citations on file: 6 on August 15, 2024, 1 on January 26, 2024, 11 on April 15, 2022, 7 on July 18, 2019.
Every fire safety citation25 citations
- F Have approved installation, maintenance and testing program for fire alarm systems.
- F Properly provide smoke detection systems in areas open to corridors.
- F Have simulated fire drills held at unexpected times.
- F Have generator or other power source capable of supplying service within 10 seconds.
- D Install corridor and hallway doors that block smoke.
- D Meet requirements for the use of electrical equipment.
- D Use approved construction type or materials.
- F Have generator or other power source capable of supplying service within 10 seconds.
- E Have simulated fire drills held at unexpected times.
- E Meet requirements for the use of electrical equipment.
- E Have proper medical gas storage and administration areas.
- D Conduct testing and exercise requirements.
- D Ensure that special areas are constructed so that walls can resist fire for one hour or have an approved fire extinguishing system.
- D Provide properly protected cooking facilities.
- D Have a complete alarm system manually initiated and initiated by fire sprinkler system connection.
- D Inspect, test, and maintain automatic sprinkler systems.
- D Properly select, install, inspect, or maintain portable fire extinguishes.
- D Ensure proper usage of power strips and extension cords.
- E To conduct inspection, testing and maintenance of fire doors by qualified individuals.
- E Have generator or other power source capable of supplying service within 10 seconds.
- D Address subsistence needs for staff and patients.
- D Establish roles under a Waiver declared by secretary.
- D Provide primary/alternate means for communication.
- D Conduct testing and exercise requirements.
- D Have proper medical gas storage and administration areas.
Fines and payment denials
CMS lists no fines or payment denials against this home in the last three years. The national average is 0.9 fines per home.
Staffing
Hours of care per resident per day, from the payroll records every home sends CMS. Higher means more staff time with each resident.
| Measure | This home | California | United States |
|---|---|---|---|
| All nursing staff (RN, LPN and aides) | 4.30 | 4.52 | 3.86 |
| Registered nurses | 0.49 | 0.67 | 0.69 |
| All nursing staff on weekends | 3.96 | 4.09 | 3.42 |
| Nurse aides | 2.62 | ||
| Licensed practical nurses | 1.19 | ||
| Nursing staff turnover (share who left in a year) | 24.6% | 36.7% | 45.8% |
| Registered nurse turnover | 52.9% | 38.1% | 42.9% |
| Administrators who left | 0 |
CMS expects 4.07 hours a day for residents as sick as this home's (its case-mix figure). The staffing star compares the two.
Staffing by quarter, from daily payroll records
Every nursing home sends CMS its staff hours for each day (the Payroll Based Journal). Here they are added up by quarter. The latest quarter is the one behind the figures above. In January to March 2026, nursing staff hours per resident were 4.44 on weekdays and 3.96 on weekends, 11% lower on weekends (nationally, weekends ran 15% lower). Contract or agency staff worked 0.0% of nursing hours, against 5.3% nationally. Total nursing hours per resident went from 4.39 in April to June 2025 to 4.30 in January to March 2026.
| Quarter | All nursing staff | Registered nurses | Weekdays | Weekends | Contract staff share | Days with no RN hours | Residents a day |
|---|---|---|---|---|---|---|---|
| Jan to Mar 2026 | 4.30 | 0.49 | 4.44 | 3.96 | 0.0% | 0 of 90 | 113 |
| Oct to Dec 2025 | 4.33 | 0.48 | 4.44 | 4.04 | 0.0% | 0 of 92 | 112 |
| Jul to Sep 2025 | 4.28 | 0.46 | 4.45 | 3.85 | 0.1% | 0 of 92 | 111 |
| Apr to Jun 2025 | 4.39 | 0.52 | 4.56 | 3.99 | 0.0% | 0 of 91 | 106 |
| United States, Jan to Mar 2026 | 3.75 | 0.62 | 3.92 | 3.33 | 5.3% | 0.5% of days | |
| California, Jan to Mar 2026 | 4.36 | 0.59 | 4.52 | 3.97 | 2.3% | 0.5% of days |
Hours per resident per day: staff hours in the quarter divided by resident days (the daily census CMS derives from resident assessments). Registered nurses include the director of nursing and RNs with administrative duties; aides include nurse aides in training and medication aides, as in CMS's own staffing measure. How these are calculated.
Quality measures
The measures CMS uses for the quality star. Lower is better for every one of them.
| Measure | This home | California | US |
|---|---|---|---|
| Percentage of long-stay residents whose need for help with daily activities has increased Long Stay residents, 2025Q2-2026Q1 | 9.2 | 10.3 | 13.9 |
| Percentage of long-stay residents with a catheter inserted and left in their bladder Long Stay residents, 2025Q2-2026Q1 | 0.5 | 0.8 | 0.8 |
| Percentage of long-stay residents with a urinary tract infection Long Stay residents, 2025Q2-2026Q1 | 0.0 | 1.2 | 1.6 |
| Percentage of long-stay residents experiencing one or more falls with major injury Long Stay residents, 2025Q2-2026Q1 | 0.3 | 1.6 | 3.2 |
| Percentage of short-stay residents who newly received an antipsychotic medication Short Stay residents, 2025Q2-2026Q1 | 0.3 | 1.4 | 1.6 |
| Percentage of long-stay residents whose ability to walk independently worsened Long Stay residents, 2025Q2-2026Q1 | 9.2 | 9.8 | 14.1 |
| Percentage of long-stay residents with pressure ulcers Long Stay residents, 2025Q2-2026Q1 | 4.0 | 4.3 | 4.6 |
| Percentage of long-stay residents who received an antipsychotic medication Long Stay residents, 2025Q2-2026Q1 | 7.0 | 12.0 | 15.4 |
| Percentage of short-stay residents who were rehospitalized after a nursing home admission Short Stay residents, 20250101-20251231 | 28.9 | 22.9 | 23.8 |
| Percentage of short-stay residents who had an outpatient emergency department visit Short Stay residents, 20250101-20251231 | 15.5 | 11.2 | 12.0 |
| Number of hospitalizations per 1000 long-stay resident days Long Stay residents, 20250101-20251231 | 2.1 | 2.3 | 1.9 |
| Number of outpatient emergency department visits per 1000 long-stay resident days Long Stay residents, 20250101-20251231 | 2.1 | 1.6 | 1.8 |
Owners and operators
Legal business name: DIAMOND RIDGE POST ACUTE LLC. CMS links this home to David Johnson, a group of 48 nursing homes averaging 3.3 stars overall.
| Name | Role | Type | Share | Since |
|---|---|---|---|---|
| Diamond Ridge Post Acute LLC | 5% or greater direct ownership interest | Organization | 100% | 02/03/2022 |
| Dehghanmanesh, Adrian | Corporate officer | Individual | 06/01/2021 | |
| Johnson, Frank | Corporate officer | Individual | 02/11/2021 | |
| Diamond Ridge Post Acute LLC | Operational/managerial control | Organization | 02/03/2022 | |
| Dehghanmanesh, Adrian | Operational/managerial control | Individual | 06/01/2021 | |
| Johnson, David | Operational/managerial control | Individual | 02/11/2021 | |
| Johnson, Frank | Operational/managerial control | Individual | 02/11/2021 | |
| Kochek, Joshua | Operational/managerial control | Individual | 04/01/2022 | |
| Oxford, Micheal | Operational/managerial control | Individual | 01/03/2022 | |
| Diamond Ridge Post Acute LLC | Adp of the SNF | Organization | 02/03/2022 | |
| Smv Pittsburg LLC | Adp of the SNF | Organization | 01/01/2005 | |
| Sun Meridian Management Services LLC | Adp of the SNF | Organization | 03/22/2021 | |
| Dehghanmanesh, Adrian | Adp of the SNF | Individual | 06/01/2021 | |
| Farrales, Mary | Adp of the SNF | Individual | 01/01/2023 | |
| Johnson, David | Adp of the SNF | Individual | 02/11/2021 | |
| Kochek, Joshua | Adp of the SNF | Individual | 04/01/2022 | |
| Ng, Andrew | Adp of the SNF | Individual | 07/15/2025 | |
| Oxford, Micheal | Adp of the SNF | Individual | 01/03/2022 | |
| Viloria, Harriet | Adp of the SNF | Individual | 10/12/2024 |
As listed in the CMS ownership file, which names owners with a 5% or greater stake and the people and companies with operational or managerial control.
Questions to ask on a visit
Chosen from this home's own inspection record.
- How are medications reviewed, and how often are antipsychotic or sedating drugs used?Inspectors cited 11 problems in this area, most recently on August 15, 2024: "Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist."
- How do you prevent falls and pressure injuries, and how are families told when one happens?Inspectors cited 10 problems in this area, most recently on January 16, 2026: "Ensure that a nursing home area is free from accident hazards and provides adequate supervision to prevent accidents."
- Can we see a week of menus and the kitchen, and how are special diets handled?Inspectors cited 7 problems in this area, most recently on August 15, 2024: "Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards."
- When is the care plan meeting, and can family attend it?Inspectors cited 6 problems in this area, most recently on August 15, 2024: "Create and put into place a plan for meeting the resident's most immediate needs within 48 hours of being admitted"
- Who is on the floor on Saturday and Sunday, and how many residents does each aide care for?Weekend nurse staffing here was 3.96 hours per resident per day, below the California average of 4.09.
Other nursing homes nearby
- Pittsburg Skilled Nursing Center Pittsburg, 1.1 mi · 1 of 5 stars · 39 citations
- Delta View Post Acute Antioch, 3.3 mi · 4 of 5 stars · 42 citations
- Lone Tree Post Acute Antioch, 5.1 mi · 5 of 5 stars · 29 citations
- Stonebrook Post Acute Concord, 6.4 mi · 4 of 5 stars · 23 citations
- Diablo Valley Post Acute Concord, 8 mi · 2 of 5 stars · 40 citations
- Willow Pass Healthcare Center Concord, 8.3 mi · 3 of 5 stars · 49 citations
- Concord Post Acute Concord, 9.3 mi · 2 of 5 stars · 40 citations
- Bayberry Skilled Nursing & Healthcare Center Concord, 9.5 mi · 3 of 5 stars · 24 citations
California contacts for a concern about a nursing home
These are the official offices in California. NursingHomeClear cannot take or act on complaints.
- Inspections and complaints: California Department of Public Health, Center for Health Care Quality, Licensing and Certification Program, the state agency that inspects nursing homes for CMS and takes complaints about care.
- Resident advocate: California Long-Term Care Ombudsman Program, 1-800-231-4024. The long-term care ombudsman is a free, confidential advocate for residents and families, set up under the federal Older Americans Act.
- State inspection reports: Cal Health Find, where California publishes its own records on licensed homes.
Common questions
- What is Diamond Ridge Healthcare Center's Medicare star rating?
- CMS rates Diamond Ridge Healthcare Center 3 out of 5 stars overall, with 3 for health inspections, 4 for staffing and 4 for quality measures (CMS data as of September 1, 2026).
- How many deficiencies did Diamond Ridge Healthcare Center get at its last inspection?
- 9 health deficiencies at the standard inspection on August 15, 2024. The California average is 15.6.
- Has Diamond Ridge Healthcare Center been fined?
- CMS lists no fines in the last three years.
- Does Diamond Ridge Healthcare Center accept Medicaid?
- It is certified to take Medicaid (CMS lists it as "Medicare and Medicaid"). Certification does not mean a Medicaid bed is open: ask the admissions office.
- Who owns Diamond Ridge Healthcare Center?
- CMS lists 19 owners and managers, and links the home to David Johnson. Legal business name: DIAMOND RIDGE POST ACUTE LLC.
Sources
- Ratings, staffing and fines: CMS Provider Information, released September 30, 2026, data as of September 1, 2026.
- Citations: CMS Health Deficiencies and Fire Safety Deficiencies.
- Owners: CMS Ownership. Penalties: CMS Penalties.
- Staffing by quarter: CMS Payroll Based Journal Daily Nurse Staffing, April 2025 to March 2026, summed by NursingHomeClear.
- Inspector summaries: CMS Full Statement of Deficiencies (CMS-2567 text), data as of September 1, 2026. Each quote is the part of the statement before the detailed findings.
- Inspection reports with the inspectors' full notes are on this home's Medicare.gov page.
- Something wrong on this page? Ask for a correction. We fix errors in our copy of the data; findings themselves can only be changed by CMS and the state.
- NursingHomeClear is independent and not affiliated with CMS, Medicare or any state agency. This page reports federal records; it does not rate, recommend or endorse any home, and it is not medical or legal advice.