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Nursing home report card · Hayward, CA

Serenethos Care Center, Llc

22822 Myrtle Street, Hayward, CA 94541

Call this home: (510) 537-4844

View this home on Medicare.gov ↗

Infection-control problems noted

Quick summary

Review the ratings and inspection history below

Use the star ratings as a quick grade, then read what inspectors actually wrote. Numbers alone do not tell the whole story for any one resident.

Our summary of public Medicare records. It does not establish that this home harmed a particular resident. About this summary.

How recent is this information?
Medicare file prepared
Aug 1, 2026
Our record last updated
Oct 15, 2026
Last routine health inspection
Jun 20, 2025

These dates mean different things. A new file can include older inspections and staffing figures. Read about the dates.

Medicare ratings

One star is the lowest rating. Five stars is the highest. Ratings are a starting point—read the inspection findings too.

Overall rating
5out of 5

Combines inspection, staffing, and care measures.

Among the highest Medicare ratings

Health inspections
5out of 5

Based on problems found during health inspections.

Among the highest Medicare ratings

Nursing staff
3out of 5

Based on staffing levels and related measures.

About average for U.S. nursing homes

Health and care results
4out of 5

Based on reported health and care results.

Above average

What do the ratings and warnings mean?
Medicare ratings
One star is the lowest rating. Five stars is the highest. These are government ratings, not family reviews.
Inspection problems
Inspectors found that a home did not meet a care or safety rule. The official term is “deficiency.”
Abuse warning
Medicare has flagged the home because of abuse-related inspection findings. Read the findings and dates.
Nursing staff time
Average staff hours for each resident per day. This does not mean each resident gets that much one-to-one care.

Learn about the records and their limits →

At a glance

These numbers come from the records we have. Inspection problems are rules the home did not meet. The dates covered can differ.

Care and safety problems
25

Care, safety, and resident-rights issues on recent inspections

Fire-safety problems
0

Building, alarms, exits, and related safety citations

Reported fines
$0

Total fine amounts in the imported penalty records

Medicare file prepared
Aug 1, 2026

Medicare home ID: 555905

Inspection findings to read first

Start with these past findings. We show the most serious first, then the most recent. They do not describe the home’s condition today.

  • Immediate danger to residents · widespread case

    Dec 16, 2022 · Inspection rule 0801

    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.

  • Immediate danger to residents · isolated case

    Dec 16, 2022 · Inspection rule 0800

    Provide each resident with a nourishing, palatable, well-balanced diet that meets his or her daily nutritional and special dietary needs.

  • Immediate danger to residents · isolated case

    Dec 16, 2022 · Inspection rule 0726

    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.

Read the inspection history →

Nursing staff time

These are average staff hours for each resident per day. They are not one-to-one bedside care. The file does not give the reporting period for each figure.

Registered nurses (RNs)
0.38hours per resident per day

about 23 minutes per resident per day

All nursing staff
3.99hours per resident per day

about 4 hours per resident per day

Registered nurse time on weekends
0.34hours per resident per day

about 20 minutes per resident per day

Latest inspection summary

A summary of the most recent routine inspections. You can open the dated findings below.

We do not have a routine inspection summary for this home. Check the dated findings below and the Medicare.gov record.

How this home compares

Compared with state and national averages. The numbers may cover different periods.

  • Overall CMS rating: 5 stars
  • Health inspection rating: 5 stars
  • Staffing rating: 3 stars
  • Registered nurse time per resident: 0.38 hours/day
  • Total nurse time per resident: 3.99 hours/day
See the dates used for these averages

Medicare file dates: this home Aug 1, 2026; California averages Unavailable; U.S. averages Oct 1, 2026.

Other concerns in the records

These points may be worth asking about. They do not establish what happened to a particular resident. See our Terms of Use.

  • Recent citations include infection-control problems
  • Inspectors have listed an unusually high number of problems

How serious were the problems?

Inspectors rate each problem by how much harm it caused or could cause. We group the CMS letter codes into plain language.

  • Immediate danger to residents3 citations
  • Could have caused harm21 citations
  • Low risk of harm1 citation

Why inspectors showed up

Routine checks happen on a schedule. Complaint visits happen when someone reports a concern.

Complaints
0
Routine
25
Fire safety
0
Other
0

Who owns it

Names CMS lists as owners or managers · reported as For profit - Limited Liability company.

  • We do not have individual owner names for this home.

Inspection history

Open a date to read what inspectors found. The harm labels explain how serious the problem was at the time.

June 20, 20253 findings
  • Nutrition and Dietary problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0801 · code 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.

  • Resident Assessment and Care Planning problems
    Could have caused harm · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0641 · code D

    Ensure each resident receives an accurate assessment.

  • Pharmacy Service problems
    Could have caused harm · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0759 · code D

    Ensure medication error rates are not 5 percent or greater.

May 10, 202411 findings
  • Nutrition and Dietary problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0812 · code E

    Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.

  • Administration problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0867 · code E

    Set up an ongoing quality assessment and assurance group to review quality deficiencies and develop corrective plans of action.

  • Environmental problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0912 · code E

    Provide rooms that are at least 80 square feet per resident in multiple rooms and 100 square feet for single resident rooms.

  • Environmental problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0925 · code E

    Make sure there is a pest control program to prevent/deal with mice, insects, or other pests.

  • Resident Rights problems
    Could have caused harm · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0550 · code D

    Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights.

  • Quality of Life and Care problems
    Could have caused harm · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0677 · code D

    Provide care and assistance to perform activities of daily living for any resident who is unable.

  • Pharmacy Service problems
    Could have caused harm · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0757 · code D

    Ensure each resident’s drug regimen must be free from unnecessary drugs.

  • Environmental problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0908 · code E

    Keep all essential equipment working safely.

  • Pharmacy Service problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0755 · code E

    Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.

  • Pharmacy Service problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0759 · code E

    Ensure medication error rates are not 5 percent or greater.

  • Infection Control problems
    Could have caused harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0880 · code E

    Provide and implement an infection prevention and control program.

December 16, 202211 findings
  • Quality of Life and Care problems
    Could have caused harm · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0677 · code D

    Provide care and assistance to perform activities of daily living for any resident who is unable.

  • Nursing and Physician Services problems
    Immediate danger to residents · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0726 · code 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.

  • Nutrition and Dietary problems
    Immediate danger to residents · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0800 · code J

    Provide each resident with a nourishing, palatable, well-balanced diet that meets his or her daily nutritional and special dietary needs.

  • Nutrition and Dietary problems
    Could have caused harm · widespread case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0802 · code F

    Provide sufficient support personnel to safely and effectively carry out the functions of the food and nutrition service.

  • Nutrition and Dietary problems
    Could have caused harm · widespread case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0812 · code F

    Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.

  • Infection Control problems
    Could have caused harm · widespread case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0880 · code F

    Provide and implement an infection prevention and control program.

  • Environmental problems
    Could have caused harm · widespread case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0908 · code F

    Keep all essential equipment working safely.

  • Quality of Life and Care problems
    Could have caused harm · isolated case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0690 · code 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.

  • Environmental problems
    Low risk of harm · pattern case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0912 · code B

    Provide rooms that are at least 80 square feet per resident in multiple rooms and 100 square feet for single resident rooms.

  • Nutrition and Dietary problems
    Could have caused harm · widespread case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0814 · code F

    Dispose of garbage and refuse properly.

  • Nutrition and Dietary problems
    Immediate danger to residents · widespread case
    Inspection type and official rule codes

    Routine health inspection · CMS tag 0801 · code 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.

Fines & penalties

These fines appear in Medicare’s records. A listed amount does not tell us whether it has been paid.

  • No fines or penalties appear in the records we have.

Related topics

Questions about Serenethos Care Center, Llc

What is Serenethos Care Center, Llc's Medicare star rating?
As of August 1, 2026, Serenethos Care Center, Llc in Hayward, California has an overall CMS rating of 5 out of 5 stars. Other CMS scores: health inspection 5 of 5, staffing 3 of 5, quality measures 4 of 5. These are CMS ratings based on inspection, staffing, and quality information, not consumer reviews.
Has Serenethos Care Center, Llc been fined?
The imported record gives a fine total of $0 for Serenethos Care Center, Llc in Hayward, California. This does not establish that the home has never been fined.
Does Serenethos Care Center, Llc have a Medicare abuse warning?
No. The current CMS Care Compare extract does not show an abuse warning icon for Serenethos Care Center, Llc in Hayward, California.
How does Serenethos Care Center, Llc compare with other nursing homes in California?
Its overall CMS rating is 5 out of 5. A rating comparison is withheld because a matching source date or a usable rating is missing. Use the California report card and dated inspection history for context; inspection totals alone are not a like-for-like performance comparison.

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