Overview
St John Kronstadt Convalescent Center has a Medicare overall rating of 5 out of 5, above the California average of 3.2. It ranks 3rd of 5 nursing homes in Castro Valley. It scores best on quality of care (5 of 5) and lowest on health inspections (4 of 5).
Residents receive about 4.5 hours of nursing care per day, more than at 63% of nursing homes in California (the state average is 4.5 hours). Of that, 0.5 hours come from registered nurses.
Its most recent standard inspection, on November 21, 2025, found 11 health deficiencies, fewer than the California average of 15.5. It has no fines on record for the past three years, while 39% of California nursing homes have been fined.
St John Kronstadt Convalescent Center is a nonprofit facility with 49 certified beds, caring for about 41 residents on an average day. It accepts both Medicare and Medicaid and has participated since 1976.
Medicare ratings
- Health inspections
- Quality of care
- Staffing
Source: Medicare Care Compare, data as of October 1, 2026.
How it compares nearby
Ranked by Medicare overall rating, then quality, inspection and staffing ratings.
Top 60%
Top 9%
Top 6%
Family reviews
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Inspections and penalties
- Most recent standard inspection
- November 21, 2025
- Health deficiencies cited
- 11
- Complaint-related deficiencies
- 0
- Fines in the last 3 years
- 0
- Payment denials
- 0
- Total penalties
- 0
Staffing
Average hours of care each resident receives per day.
- All nursing staff4.45 hrs
- Registered nurses (RN)0.53 hrs
- Licensed practical nurses (LPN)1.08 hrs
- Nurse aides2.85 hrs
- Physical therapists0.10 hrs
Facility details
- Ownership
- Non profit - Corporation
- Certified beds
- 49
- Average residents per day
- 41
- Participates in
- Medicare and Medicaid
- Medicare/Medicaid since
- May 14, 1976
- Inside a hospital
- No
- Continuing care retirement community
- No
- Changed ownership in last 12 months
- No
- Resident or family council
- Both
- Sprinklers in all required areas
- Yes