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Serenethos Care Center, LLC

22822 Myrtle Street, Hayward, CA 94541 · Alameda County · (510) 537-4844

36 certified beds, about 32 residents a day · For profit - Limited Liability company · Medicare and Medicaid since 2017

CMS high performing icon Certified for Medicaid Certified for Medicare
Overall
5 of 5
Health inspections
5 of 5
Staffing
3 of 5
Quality measures
4 of 5

CMS Care Compare ratings, data as of September 1, 2026 · CCN 555905 · See it on Medicare.gov · Compare with other homes

The record in brief

At its most recent standard inspection, on June 20, 2025, inspectors cited 3 health deficiencies (the California average is 15.6, the national average 9.2).

Of 25 health citations since December 2022, 3 were rated as actual harm or immediate jeopardy to residents (3 immediate jeopardy).

CMS lists no fines against this home in the last three years.

Nurses and nurse aides worked 3.99 hours per resident per day, against 4.52 across California and 3.86 nationally. Registered nurses accounted for 0.38 of those hours.

36.4% of nursing staff left within the year CMS measured (California average 36.7%).

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.

Potential for minimal harm Potential for more than minimal harm Actual harm Immediate jeopardy Found on a complaint visit

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 25 health citations on file.

Severity
Isolated
Pattern
Widespread
Immediate jeopardy
2J
0K
1L
Actual harm
0G
0H
0I
Potential for more than minimal harm
7D
9E
5F
Potential for minimal harm
0A
1B
0C
June 20, 2025Standard inspection · 3 citations
  1. E
    Employ sufficient staff with the appropriate competencies and skills sets to carry out the functions of the food and nutrition service, including a qualified dietician.
    F801 · Nutrition and Dietary · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) July 15, 2025
    Inspectors wroteBased on interviews and record review, the facility failed to ensure that when it hired a part-time registered dietitian, the person designated to serve as the director of food and nutrition services met both the federal and/or state educational qualifications for the position. This failure had the potential for lack of competency and skill set necessary to carry out all the functions of the food services.
  2. D
    Ensure each resident receives an accurate assessment.
    F641 · Resident Assessment and Care Planning · No actual harm, potential for more than minimal harm, isolated · Corrected (the home has a date of correction) July 15, 2025
    Inspectors wroteBased on interview and record review the facility failed to ensure the Preadmission Screening and Resident Review (PASRR) assessment for one of one sampled residents (Resident 1) was completed and coded accurately. This failure to accurately code Resident 1's PASRR assessments placed Resident 1 at risk to not receive care and services appropriate to his needs.
  3. D
    Ensure medication error rates are not 5 percent or greater.
    F759 · Pharmacy Service · No actual harm, potential for more than minimal harm, isolated · Corrected (the home has a date of correction) July 15, 2025
    Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure the medication error rate did not exceed 5% for one out of four sampled residents (Resident 23) when nursing staff administered 4% lidocaine patch to Resident 23's knees on two separate days, instead of to the back as prescribed by the physician. These failures resulted in two medication errors being identified out of 27 opportunities during an observation of medication administration leading to a medication error rate of 7.41%. These deficient practices had the potential to result Resident 23 not having pain relief.
May 10, 2024Standard inspection · 11 citations
  1. E
    Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
    F755 · Pharmacy Service · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on the observations and interviews conducted, it was concluded that the facility failed to provide pharmaceutical services to meet the needs of each resident. This conclusion was drawn due to the discovery of expired medications found in the medication storage areas. Expired medications can no longer be considered viable or safe to administer, and thus will not meet the needs of the residents who require effective and safe pharmaceutical care.
  2. E
    Ensure medication error rates are not 5 percent or greater.
    F759 · Pharmacy Service · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observations, interviews, and a review of records, it was found that the facility failed to maintain a medication error rate of less than 5%. During the medication pass, eight medication errors were observed out of twenty five opportunities for five of six residents, resulting in an error rate of 32%.
  3. E
    Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
    F812 · Nutrition and Dietary · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation, interview, and facility document review, the facility failed to ensure food was stored and prepared in a safe and sanitary manner when: 1. A trash can in the dishwashing area was left uncovered. 2. The microwave was not clean. 3. Two packs of unopened corn Tortilla and one pack of opened Tortilla with a few left in the plastic bag, had expired. 4. A half full bag of premium golden light brown sugar with no received date and still in its paper sack. 5. A half full bag of salt still in its paper sack. These failures had the potential to result in contamination of food causing food borne illness for 30 residents who received food from the kitchen out of a facility census of 31.
  4. E
    Set up an ongoing quality assessment and assurance group to review quality deficiencies and develop corrective plans of action.
    F867 · Administration · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation, interview, and document reviews it was found that the facilities' Quality Assessment Performance Improvement (QAPI) program was ineffective. Despite its purpose to proactively identify and prevent medication administration errors, it fell short. This was evident during a medication pass observation conducted during the survey, which revealed a concerning 32% medication error rate (See F759).
  5. E
    Provide and implement an infection prevention and control program.
    F880 · Infection Control · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure that staff followed the infection prevention and control policy and procedure (P&P) to prevent spread of infection for two of four sampled residents (Resident 30 and Resident 8) when: 1) The nebulization mask (a medical device used to deliver medication in the form of mist, which is inhaled into the lungs) of Resident 30 was not dated or labelled and left exposed in the bedside table drawer touching other personal items and the drawer surface with brownish dusty material. 2)The nebulization mask and CPAP mask (continuous positive airway pressure machine is used in the treatment of sleep apnea. [...]
  6. E
    Keep all essential equipment working safely.
    F908 · Environmental · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation, interview, and facility document review, the facility failed to maintain the dish machine in safe operating condition when the temperature did not reach 120° (degrees) Fahrenheit (F). This failure had the potential for food preparation and food service utensils placed in the dish machine to not become fully cleaned and sanitized before being used.
  7. E
    Provide rooms that are at least 80 square feet per resident in multiple rooms and 100 square feet for single resident rooms.
    F912 · Environmental · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation, interview, and record review, the facility failed to provide 80 square foot of space per resident for 8 residents who occupied 4 multi-bed bedrooms. This condition had the potential to result in lack of sufficient space for the provision of care both routine and emergency and for residents to have their personal belongings at bedside.
  8. E
    Make sure there is a pest control program to prevent/deal with mice, insects, or other pests.
    F925 · Environmental · No actual harm, potential for more than minimal harm, pattern · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation and interview, the facility failed to ensure an effective pest control program when flies were observed in the kitchen. This failure had the potential to cause food borne illness.
  9. D
    Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights.
    F550 · Resident Rights · No actual harm, potential for more than minimal harm, isolated · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation, interview, and record review, the facility failed to maintain a working wall clock for one of one sampled resident (Resident 19) in her room. This failure placed Resident 19 at risk for confusion and disorientation.
  10. D
    Provide care and assistance to perform activities of daily living for any resident who is unable.
    F677 · Quality of Life and Care · No actual harm, potential for more than minimal harm, isolated · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on observation, interview and record review, the facility failed to ensure two (2) of four (4) sampled residents (Resident 20 and Resident 18) received proper grooming including nailcare when: 1. Resident 20 had long fingernails with black matter underneath 2. Resident 18 with contractures had long sharp nails digging into palms. This failure placed residents at risk for getting infections from lack of proper hygiene and injuring themselves with long fingernails and compromised physical and psychosocial wellbeing.
  11. D
    Ensure each resident’s drug regimen must be free from unnecessary drugs.
    F757 · Pharmacy Service · No actual harm, potential for more than minimal harm, isolated · Corrected (the home has a date of correction) June 6, 2024
    Inspectors wroteBased on interview and record review the facility failed to act upon consultant pharmacist's recommendations for clarification of indication of use for trihexyphenidyl (a medicine that improves muscle control and reduces stiffness in Parkinson's disease and other conditions) for one of five sampled residents (Resident 12). This deficient practice resulted in Resident 12 receiving unnecessary medication without proper indication and had the potential to negatively impact the resident's well-being.
December 16, 2022Standard inspection · 11 citations
  1. L
    Employ sufficient staff with the appropriate competencies and skills sets to carry out the functions of the food and nutrition service, including a qualified dietician.
    F801 · Nutrition and Dietary · Immediate jeopardy to resident health or safety, widespread · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation, review of facility documents, and staff interviews, the facility failed to comply with federal regulations related to the oversight of food service operations when the facility did not have a full-time dietitian and the requirements were not met as specified in established standards (California Code, Health and Safety Code - HSC § 1265.4) for food service managers which required, employment of a full-time dietetic supervisor when the dietitian was not full time. Multiple issues were observed including the Food and Nutrition Services Department did not have a system in place to ensure the appropriate texture of food was prepared and served; the Food and Nutrition Supervisory staff did not ensure food safety and sanitation; [...]
  2. J
    Ensure that nurses and nurse aides have the appropriate competencies to care for every resident in a way that maximizes each resident's well being.
    F726 · Nursing and Physician Services · Immediate jeopardy to resident health or safety, isolated · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation, interview, and facility document review, the facility failed to ensure nursing staff demonstrated appropriate competencies and skillsets necessary to care for residents' needs when physician prescribed food texture was not verified before serving food to residents, and when Certified Nursing Aide 3 (CNA 3) did not have the knowledge to identify the appropriate food texture in accordance with the diet order before serving food to a resident. These failures had the potential for one resident (Resident 34) out of a facility census of 35, to aspirate (to breath in or inhale foreign objects into the lungs. [...]
  3. J
    Provide each resident with a nourishing, palatable, well-balanced diet that meets his or her daily nutritional and special dietary needs.
    F800 · Nutrition and Dietary · Immediate jeopardy to resident health or safety, isolated · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation, interview, and document review, the facility failed to provide a resident (Resident 34) a special dietary need as well as ensure Food and Nutrition Services had a system in place for preparing and serving the correct diet texture according to the physician's order when a regular texture diet (a diet that includes all textures of food including hard, tough, chewy, fibrous, stringy, dry, crispy, and crunchy; and intended for people without chewing and swallowing issues) was prepared for a resident (Resident 34) with prescribed modified texture Full Liquid diet (a diet made with fluids and foods that are normally liquid and/or turn to liquid when they are at room temperature). [...]
  4. F
    Provide sufficient support personnel to safely and effectively carry out the functions of the food and nutrition service.
    F802 · Nutrition and Dietary · No actual harm, potential for more than minimal harm, widespread · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation, interview, and facility document review, the facility failed to ensure the competency of staff when: 1. Staff did not know how to test the food-contact surface sanitizer; 2. Staff were not able to calibrate thermometers used to measure the temperature of food; 3. Staff did not know appropriate procedures for manual dishwashing; 4. Staff did not follow a recipe for the planned menu; and 5. Staff did not know the appropriate water temperature required for the dish machine. The failure to ensure staff had the competency to properly complete necessary tasks had the potential to result in food borne illness, as well as health complications for not receiving the nutrients intended by the planned menu, for 29 residents who received food from the kitchen out of a facility census of 35.
  5. F
    Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
    F812 · Nutrition and Dietary · No actual harm, potential for more than minimal harm, widespread · Corrected (the home has a date of correction) February 10, 2023
    Inspectors wroteBased on observation, interview, and facility document review, the facility failed to ensure food was stored, prepared, and served in a safe and sanitary manner when: 1. Meat was not thawed or stored properly; 2. Staff did not wash hands, use gloves, and use the handwashing sink properly; 3. Refrigerated food was not stored at an appropriate temperature; 4. Refrigerated food was moldy and not discarded by the use-by-date; 5. Equipment and utensils were found stored dirty and in poor condition; and 6. Storage cabinets, and drawers used for storing food and cooking utensils were not clean and in poor condition These failures had the potential to result in contamination of food and food borne illness for 29 residents who received food from the kitchen out of a facility census of 35.
  6. F
    Dispose of garbage and refuse properly.
    F814 · Nutrition and Dietary · No actual harm, potential for more than minimal harm, widespread · Corrected (the home has a date of correction) February 10, 2023
    Inspectors wroteBased on observation and interview, the facility failed to ensure the garbage dumpster bins located outside, had lids that tightly closed. This failure had the potential to attract pests to the facility and lead to pest related disease for 35 residents out of a facility census of 35.
  7. F
    Provide and implement an infection prevention and control program.
    F880 · Infection Control · No actual harm, potential for more than minimal harm, widespread · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observations, interviews, and record review, the facility failed to follow policies and procedures for infection control for 35 of 35 facility residents when: 1. Staff did not wear face masks appropriately and, 2. Facility did not have policy or procedure to monitor water for waterborne pathogens (disease causing micro-organisms which can grow in water). These failures had the potential result in respiratory or waterborne infection for facility residents.
  8. F
    Keep all essential equipment working safely.
    F908 · Environmental · No actual harm, potential for more than minimal harm, widespread · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation, interview, and facility document review, the facility failed to: 1. maintain the dish machine in safe operating condition when the temperature did not reach 120 degrees Fahrenheit (F) . 2. ensure a food preparation sink drain had an airgap ((a gap of air created so a food equipment drainpipe is not directly connected to a drain containing sewage or wastewater). This failure to maintain the dish machine water temperature had the potential for food preparation and food service utensils placed in the dish machine to not become fully cleaned and then used; in addition, the failure to maintain an air-gap in the food preparation sink drain had the potential for the sink to become contaminated from waste water and then result in contamination of food, for 29 residents who received food from the kitchen out of a facility census of 35.
  9. D
    Provide care and assistance to perform activities of daily living for any resident who is unable.
    F677 · Quality of Life and Care · No actual harm, potential for more than minimal harm, isolated · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation, interview, and record review, the facility failed to ensure one of two sampled residents (Resident 24) received fingernail trimming as needed. The failure to trim Resident 24's fingernails resulted in discomfort from the nails digging into the palms of both hands, which had contractures ((a condition of shortening and hardening of muscles, tendons, or other tissue, often leading to deformity and rigidity of joints and decreased mobility and function). This failure also had the potential to result in scratches, wounds, and infections from the long nails.
  10. D
    Provide appropriate care for residents who are continent or incontinent of bowel/bladder, appropriate catheter care, and appropriate care to prevent urinary tract infections.
    F690 · Quality of Life and Care · No actual harm, potential for more than minimal harm, isolated · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation, interview, and record review for one of four sampled residents (Resident 24), the facility failed to continuously assess the urine in the indwelling catheter tubing (a tube secured inside the bladder to drain urine into a bag outside the body). This failure could potentially result in delayed resolution of a possible urinary tract infection (UTI, an infection in any part of the urinary tract - kidneys, bladder, or urethra).
  11. B
    Provide rooms that are at least 80 square feet per resident in multiple rooms and 100 square feet for single resident rooms.
    F912 · Environmental · No actual harm, potential for minimal harm, pattern · Corrected (the home has a date of correction) February 9, 2023
    Inspectors wroteBased on observation and interview, the facility had four resident rooms (1, 5, 6, 12) with multiple beds that provided less than 80 square feet (sq.ft) per resident who occupied these rooms. This deficient practice had the potential to result in inadequate space for the delivery of care to each of the residents in each room, or for storage of the residents' belongings.

Fire safety inspections

44 fire safety citations on file: 12 on June 20, 2025, 19 on May 10, 2024, 13 on December 16, 2022.

Every fire safety citation44 citations
  1. F
    Develop and maintain an Emergency Preparedness Program (EP).
    E 4 · June 20, 2025 · Corrected (the home has a date of correction)
  2. F
    Address subsistence needs for staff and patients.
    E 15 · June 20, 2025 · Corrected (the home has a date of correction)
  3. F
    Conduct testing and exercise requirements.
    E 39 · June 20, 2025 · Corrected (the home has a date of correction)
  4. F
    Inspect, test, and maintain automatic sprinkler systems.
    K 353 · June 20, 2025 · Corrected (the home has a date of correction)
  5. F
    Properly select, install, inspect, or maintain portable fire extinguishes.
    K 355 · June 20, 2025 · Corrected (the home has a date of correction)
  6. F
    Install corridor and hallway doors that block smoke.
    K 363 · June 20, 2025 · Corrected (the home has a date of correction)
  7. D
    Use approved construction type or materials.
    K 161 · June 20, 2025 · Corrected (the home has a date of correction)
  8. D
    Have a complete alarm system manually initiated and initiated by fire sprinkler system connection.
    K 342 · June 20, 2025 · Corrected (the home has a date of correction)
  9. C
    List the names and contact information of those in the facility.
    E 30 · June 20, 2025 · Corrected (the home has a date of correction)
  10. C
    Install emergency lighting that can last at least 1 1/2 hours.
    K 291 · June 20, 2025 · Corrected (the home has a date of correction)
  11. C
    Have properly located and lighted "Exit" signs.
    K 293 · June 20, 2025 · Corrected (the home has a date of correction)
  12. C
    Install a fire alarm system that can be heard throughout the facility.
    K 341 · June 20, 2025 · Corrected (the home has a date of correction)
  13. F
    Address subsistence needs for staff and patients.
    E 15 · May 10, 2024 · Corrected (the home has a date of correction)
  14. F
    Establish roles under a Waiver declared by secretary.
    E 26 · May 10, 2024 · Corrected (the home has a date of correction)
  15. F
    Provide primary/alternate means for communication.
    E 32 · May 10, 2024 · Corrected (the home has a date of correction)
  16. F
    Establish staff and initial training requirements.
    E 37 · May 10, 2024 · Corrected (the home has a date of correction)
  17. F
    Conduct testing and exercise requirements.
    E 39 · May 10, 2024 · Corrected (the home has a date of correction)
  18. F
    Have approved installation, maintenance and testing program for fire alarm systems.
    K 345 · May 10, 2024 · Corrected (the home has a date of correction)
  19. F
    Have simulated fire drills held at unexpected times.
    K 712 · May 10, 2024 · Corrected (the home has a date of correction)
  20. E
    Provide emergency officials' contact information.
    E 31 · May 10, 2024 · Corrected (the home has a date of correction)
  21. E
    Have an alternate power supply for its alarm system.
    K 344 · May 10, 2024 · Corrected (the home has a date of correction)
  22. E
    Inspect, test, and maintain automatic sprinkler systems.
    K 353 · May 10, 2024 · Corrected (the home has a date of correction)
  23. E
    Install corridor and hallway doors that block smoke.
    K 363 · May 10, 2024 · Corrected (the home has a date of correction)
  24. E
    Provide a written emergency evacuation plan.
    K 711 · May 10, 2024 · Corrected (the home has a date of correction)
  25. E
    Ensure that testing and maintenance of electrical equipment is performed.
    K 921 · May 10, 2024 · Corrected (the home has a date of correction)
  26. E
    Have proper medical gas storage and administration areas.
    K 923 · May 10, 2024 · Corrected (the home has a date of correction)
  27. D
    Install emergency lighting that can last at least 1 1/2 hours.
    K 291 · May 10, 2024 · Corrected (the home has a date of correction)
  28. D
    Follow proper procedures when the fire alarm was out of service for more than 4 hours.
    K 346 · May 10, 2024 · Corrected (the home has a date of correction)
  29. D
    Follow proper procedures when the automatic sprinkler systems was out of service for more than 10 hours.
    K 354 · May 10, 2024 · Corrected (the home has a date of correction)
  30. D
    Properly select, install, inspect, or maintain portable fire extinguishes.
    K 355 · May 10, 2024 · Corrected (the home has a date of correction)
  31. D
    Ensure that corridors are separated from use areas by walls constructed to limit the passage of smoke.
    K 362 · May 10, 2024 · Corrected (the home has a date of correction)
  32. F
    Install corridor and hallway doors that block smoke.
    K 363 · December 16, 2022 · Corrected (the home has a date of correction)
  33. F
    Have simulated fire drills held at unexpected times.
    K 712 · December 16, 2022 · Corrected (the home has a date of correction)
  34. D
    Develop and maintain an Emergency Preparedness Program (EP).
    E 4 · December 16, 2022 · Corrected (the home has a date of correction)
  35. D
    Address subsistence needs for staff and patients.
    E 15 · December 16, 2022 · Corrected (the home has a date of correction)
  36. D
    List the names and contact information of those in the facility.
    E 30 · December 16, 2022 · Corrected (the home has a date of correction)
  37. D
    Provide emergency officials' contact information.
    E 31 · December 16, 2022 · Corrected (the home has a date of correction)
  38. D
    Provide primary/alternate means for communication.
    E 32 · December 16, 2022 · Corrected (the home has a date of correction)
  39. D
    Conduct testing and exercise requirements.
    E 39 · December 16, 2022 · Corrected (the home has a date of correction)
  40. D
    Have properly located and lighted "Exit" signs.
    K 293 · December 16, 2022 · Corrected (the home has a date of correction)
  41. D
    Have approved installation, maintenance and testing program for fire alarm systems.
    K 345 · December 16, 2022 · Corrected (the home has a date of correction)
  42. D
    Inspect, test, and maintain automatic sprinkler systems.
    K 353 · December 16, 2022 · Corrected (the home has a date of correction)
  43. D
    Properly select, install, inspect, or maintain portable fire extinguishes.
    K 355 · December 16, 2022 · Corrected (the home has a date of correction)
  44. D
    Have proper medical gas storage and administration areas.
    K 923 · December 16, 2022 · Corrected (the home has a date of correction)

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.

MeasureThis homeCaliforniaUnited States
All nursing staff (RN, LPN and aides)3.994.523.86
Registered nurses0.380.670.69
All nursing staff on weekends3.754.093.42
Nurse aides2.53
Licensed practical nurses1.09
Nursing staff turnover (share who left in a year)36.4%36.7%45.8%
Registered nurse turnovernot reported38.1%42.9%
Administrators who leftnot reported

CMS expects 3.65 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 4.09 on weekdays and 3.75 on weekends, 8% lower on weekends (nationally, weekends ran 15% lower). Contract or agency staff worked 5.3% of nursing hours, against 5.3% nationally. Total nursing hours per resident went from 3.87 in April to June 2025 to 3.99 in January to March 2026.

QuarterAll nursing staffRegistered nursesWeekdaysWeekendsContract staff shareDays with no RN hoursResidents a day
Jan to Mar 20263.990.384.093.75 5.3%1 of 9032
Oct to Dec 20253.940.474.043.69 8.6%0 of 9232
Jul to Sep 20253.760.403.813.62 4.1%0 of 9231
Apr to Jun 20253.870.313.973.64 0.0%0 of 9131
United States, Jan to Mar 20263.750.623.923.335.3%0.5% of days
California, Jan to Mar 20264.360.594.523.972.3%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.

MeasureThis homeCaliforniaUS
Percentage of long-stay residents whose need for help with daily activities has increased
Long Stay residents, 2025Q2-2026Q1
6.710.313.9
Percentage of long-stay residents with a catheter inserted and left in their bladder
Long Stay residents, 2025Q2-2026Q1
3.50.80.8
Percentage of long-stay residents with a urinary tract infection
Long Stay residents, 2025Q2-2026Q1
0.01.21.6
Percentage of long-stay residents experiencing one or more falls with major injury
Long Stay residents, 2025Q2-2026Q1
1.61.63.2
Percentage of long-stay residents whose ability to walk independently worsened
Long Stay residents, 2025Q2-2026Q1
2.59.814.1
Percentage of long-stay residents with pressure ulcers
Long Stay residents, 2025Q2-2026Q1
6.04.34.6
Percentage of long-stay residents who received an antipsychotic medication
Long Stay residents, 2025Q2-2026Q1
1.412.015.4
Number of hospitalizations per 1000 long-stay resident days
Long Stay residents, 20250101-20251231
1.92.31.9
Number of outpatient emergency department visits per 1000 long-stay resident days
Long Stay residents, 20250101-20251231
2.91.61.8

Owners and operators

Legal business name: SERENETHOS CARE CENTER, LLC.

NameRoleTypeShareSince
Serenethos Care Center, LLC5% or greater direct ownership interestOrganization100%03/01/2018
Baldwin, RonaldDirect ownership interestIndividual03/01/2018
Xie, QingDirect ownership interestIndividual03/01/2018
Ng, AndrewManaging control - governing bodyIndividual03/01/2018
Serenethos Care Center, LLCOperational/managerial controlOrganization03/01/2018
Baldwin, RonaldOperational/managerial controlIndividual03/01/2018
Ng, AndrewOperational/managerial controlIndividual03/01/2018
Dickman Weston GroupAdp of the SNFOrganization08/01/2019
Hansen Hunter LLCAdp of the SNFOrganization08/01/2019
Serenethos Care Center, LLCAdp of the SNFOrganization04/01/2025
Baldwin, RonaldAdp of the SNFIndividual03/01/2018
Ng, AndrewAdp of the SNFIndividual03/01/2018
Xie, QingAdp of the SNFIndividual03/01/2018

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.

  1. 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 June 20, 2025: "Employ sufficient staff with the appropriate competencies and skills sets to carry out the functions of the food and nutrition service, including a qualified dietician."
  2. Can we see a resident room, a shower room and the dining room on this visit?Inspectors cited 5 problems in this area, most recently on May 10, 2024: "Keep all essential equipment working safely."
  3. How are medications reviewed, and how often are antipsychotic or sedating drugs used?Inspectors cited 4 problems in this area, most recently on June 20, 2025: "Ensure medication error rates are not 5 percent or greater."
  4. How do you prevent falls and pressure injuries, and how are families told when one happens?Inspectors cited 3 problems in this area, most recently on May 10, 2024: "Provide care and assistance to perform activities of daily living for any resident who is unable."
  5. Who is on the floor on Saturday and Sunday, and how many residents does each aide care for?Weekend nurse staffing here was 3.75 hours per resident per day, below the California average of 4.09.

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Common questions

What is Serenethos Care Center, LLC's Medicare star rating?
CMS rates Serenethos Care Center, LLC 5 out of 5 stars overall, with 5 for health inspections, 3 for staffing and 4 for quality measures (CMS data as of September 1, 2026).
How many deficiencies did Serenethos Care Center, LLC get at its last inspection?
3 health deficiencies at the standard inspection on June 20, 2025. The California average is 15.6.
Has Serenethos Care Center, LLC been fined?
CMS lists no fines in the last three years.
Does Serenethos Care Center, LLC 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 Serenethos Care Center, LLC?
CMS lists 13 owners and managers. Legal business name: SERENETHOS CARE CENTER, LLC.

Sources

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