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California›CASTRO VALLEY›Nursing Homes›ST JOHN KRONSTADT CONVALESCENT CENTER

ST JOHN KRONSTADT CONVALESCENT CENTER

4432 JAMES AVENUE, CASTRO VALLEY, CA, 94546 · 5108897000

Nursing HomeMedicare CertifiedMedicaid CertifiedUpdated 2026-06-08
5.0
★★★★★
Overall Rating
Health Inspection
4.0
Staffing
5.0
Quality Measures
4.0
49
Licensed Beds
5.0
Staffing Rating
St John Kronstadt Convalescent Center is a skilled nursing facility located at 4432 James Avenue in Castro Valley, California, within Alameda County. The facility operates with 49 certified beds and is classified as a non-profit corporation. It is certified for both Medicare and Medicaid, making it eligible to serve residents under either program. The Centers for Medicare and Medicaid Services (CMS) assigns star ratings to nursing facilities on a scale of one to five stars across four categories. St John Kronstadt Convalescent Center holds an overall CMS rating of 5 stars, which places it above the national average of 3.0 stars. The health inspection rating for this facility is 4 stars, reflecting findings from state inspections conducted on behalf of CMS. The staffing rating is 5 stars, based on data related to the hours of care provided by registered nurses, licensed practical nurses, and certified nursing assistants relative to the number of residents. The quality measure rating is 4 stars, derived from clinical data points that assess resident outcomes and care processes. As a facility certified for both Medicare and Medicaid, St John Kronstadt Convalescent Center is able to accept residents who receive benefits through either federal program. Medicare typically covers short-term skilled nursing care following a qualifying hospital stay, subject to eligibility requirements and coverage limits. Medicaid, administered in California through the Medi-Cal program, may cover longer-term custodial care for residents who meet financial and functional eligibility criteria. Individuals and families seeking admission are advised to contact the facility directly at (510) 889-7000 to verify current bed availability and coverage options. When compared to the national average overall CMS rating of 3.0 stars, St John Kronstadt Convalescent Center performs above the national benchmark across all measured categories. Its 5-star overall rating, combined with a 5-star staffing rating, indicates that CMS data places this facility among higher-performing nursing homes nationally. The 4-star health inspection and quality measure ratings similarly exceed the national midpoint. These ratings are based on publicly available CMS data and represent a standardized method for comparing nursing facility performance across the United States. Ratings are subject to change as CMS updates its data on a regular basis.
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About CMS Star Ratings

CMS assigns 1–5 star ratings to Medicare and Medicaid-certified nursing homes based on three domains: health inspections, staffing levels, and quality measures. The overall rating is a weighted composite.

A 5-star overall rating does not guarantee excellence in every domain — inspect each sub-rating independently. Data is updated quarterly.

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Data sourced from CMS Care Compare. Last updated via nightly pipeline.