Nursing HomeInspections

Serenethos Care Center, LLC

Nursing home in Hayward, CA

Medicare & Medicaid certified5★ overall (CMS)

Call (510) 537-4844Send a messageMap ↗

Public-record details

Address
22822 Myrtle Street, Hayward, CA 94541
Phone
(510) 537-4844
Listed under
For-profit, 4–5 star overall rating, No fines in 3 years
Medicare CCN
555905
Overall star rating
5 of 5 ★★★★★
Health inspection rating
5 of 5
Staffing rating
3 of 5
Quality measures rating
4 of 5
Certified beds
36
Average residents per day
32
Ownership
For-profit, limited Liability company
Certified for
Medicare and Medicaid
First approved by Medicare/Medicaid
May 16, 2017
Changed ownership in last 12 months
No
Continuing care retirement community
No
Located inside a hospital
No
Resident or family council
Resident council
Sprinklers in all required areas
Yes

CMS certification number 555905. Source: CMS Nursing Home Provider Information, Health Deficiencies and Penalties (record). Data as of 2026-09-30.

Inspection record

Most recent standard health inspection: Jun 20, 2025. CMS lists 25 health citations for this facility across its last three standard inspection cycles and complaint inspections (Dec 16, 2022 to Jun 20, 2025): 0 from complaint inspections, 3 at the “actual harm” level or higher, including 3 at “immediate jeopardy”.

InspectionCitationSeverity
Jun 20, 2025Ensure each resident receives an accurate assessment.
Resident Assessment and Care Planning
D
Potential for more than minimal harm, isolated
Jun 20, 2025Ensure medication error rates are not 5 percent or greater.
Pharmacy Service
D
Potential for more than minimal harm, isolated
Jun 20, 2025Employ sufficient staff with the appropriate competencies and skills sets to carry out the functions of the food and nutrition service, including a qualified dietician.
Nutrition and Dietary
E
Potential for more than minimal harm, pattern
May 10, 2024Honor the resident's right to a dignified existence, self-determination, communication, and to exercise his or her rights.
Resident Rights
D
Potential for more than minimal harm, isolated
May 10, 2024Provide care and assistance to perform activities of daily living for any resident who is unable.
Quality of Life and Care
D
Potential for more than minimal harm, isolated
May 10, 2024Ensure each resident’s drug regimen must be free from unnecessary drugs.
Pharmacy Service
D
Potential for more than minimal harm, isolated
May 10, 2024Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist.
Pharmacy Service
E
Potential for more than minimal harm, pattern
May 10, 2024Ensure medication error rates are not 5 percent or greater.
Pharmacy Service
E
Potential for more than minimal harm, pattern
May 10, 2024Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards.
Nutrition and Dietary
E
Potential for more than minimal harm, pattern
May 10, 2024Set up an ongoing quality assessment and assurance group to review quality deficiencies and develop corrective plans of action.
Administration
E
Potential for more than minimal harm, pattern
May 10, 2024Provide and implement an infection prevention and control program.
Infection Control
E
Potential for more than minimal harm, pattern
May 10, 2024Keep all essential equipment working safely.
Environmental
E
Potential for more than minimal harm, pattern

Showing the 12 most recent of 25. Full inspection reports are on Medicare Care Compare.

Severity letters follow CMS's scope-and-severity grid: A–C potential for minimal harm, D–F potential for more than minimal harm, G–I actual harm, J–L immediate jeopardy. Most citations are corrected; a citation is what inspectors found on that date. Source: CMS Health Deficiencies file, processed Aug 1, 2026.

Fines and payment denials

CMS records no fines or payment denials for this facility in the last three years.

Source: CMS Penalties file, processed Aug 1, 2026. Amounts are as CMS reports them and may reflect later reductions or appeals.

Staffing

Total nurse staffing per resident per day
3.99 hours
Registered nurse (RN) time per resident per day
0.38 hours
Nurse aide time per resident per day
2.53 hours
Total nurse staffing on weekends
3.75 hours
Nursing staff turnover (yearly)
36%

From payroll-based staffing data the facility submits to CMS. Hours are per resident per day.

A citation is what inspectors found on one date; most are corrected within weeks. Look for patterns — the same problem cited in several inspections — and for anything at the G–L level (actual harm or immediate jeopardy). The full inspection narrative (Form CMS-2567) is linked from Medicare Care Compare, and your state long-term care ombudsman can tell you about complaints.

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