Castro Valley · 94546
Canyon Creek Post-acute
22103 Redwood Road
Castro Valley, CA 94546
St John Kronstadt Convalescent Center
Top Rated for Long-Term Care, 2026Is this your home? Get your free badge →
⌖ Castro Valley, CA · Alameda County
No photos yet
Medicare overall rating 5 of 5 stars
Certified beds49
Medicare / MedicaidMedicare & Medicaid
OwnershipNon-profit (corporation)
About St John Kronstadt Convalescent Center
St John Kronstadt Convalescent Center is a 49-bed nonprofit nursing home in Castro Valley, CA. Medicare rates it 5 out of 5 stars overall (much above average); the average in California is 3.2. At its last full inspection (Nov 2025), inspectors found 11 problems, fewer than the California average of 15.6. None of the problems in its recent inspections were found to have harmed residents. Nurses and aides spend about 4 hr 13 min a day with each resident, about the same as the California average of 4 hr 31 min. About 12% of its nursing staff left in the past year. It has had no federal fines in the last three years.
Written from Medicare’s published figures; nothing here is paid for or written by the home. Our methodology
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Key details
Facility nameSt John Kronstadt Convalescent Center
LocationAlameda County, California
Phone(510) 889-7000
Address4432 James Avenue, Castro Valley, CA 94546 · Alameda County
CMS provider number555016
Ownership typeNon-profit (corporation)
Official inspection reportsRead them on Medicare.gov ↗
Medicare enrolled sinceMay 14, 1976 (50 years)
✓ Medicare✓ Medicaid
Certified for Medicaid; ask whether a Medicaid bed is available.
Quality & inspections
Explore this facility's official CMS inspection history, staffing levels and quality measures below — sourced directly from Medicare's public records.
Ratings and inspection data on this page come directly from CMS's public records and are never altered for any paid listing. Medicare data as of September 2026.
What Medicare found
4 strengths in Medicare's inspection, fine and staffing records for this home. 1 care-quality measure is worse than the state average in the rehab and long-term care section below.
Strengths
- Serious health citationsNone on recordNo citations for actual harm or immediate jeopardy since Nov 2025.Strength
- Fines and penaltiesNoneNo federal fines or payment denials in the last three years.Strength
- Health citations at last inspection11 (Nov 2025)California average: 15.6. Most citations are minor and corrected within weeks.Strength
- Nursing staff turnover12% a yearCalifornia average: 37%Strength
About average
- Nurse staffing per resident4 hr 13 min a dayCalifornia average: 4 hr 31 minAbout average
- Registered nurse time per resident41 min a dayCalifornia average: 40 minAbout average
Source: Medicare (CMS) inspection, penalty and staffing records, compared with the California average. Problems may have been corrected since; ask the home about anything listed here. How we choose these
Short-term rehab or long-term care?
Medicare rates these separately, and many homes are better at one than the other.
Long-term care
For residents who live at the home for months or years.
- Falls with a major injury4.2%State average: 1.6%Worse than average
- Pressure sores (bedsores)0.7%State average: 4.3%Better than average
- Given antipsychotic drugs10.0%State average: 12.0%About average
- Hospital stays per 1,000 resident days1.2State average: 2.2Better than average
Source: Medicare (CMS) quality measures, compared with the California average. Lower is better for every rate shown.
Who pays, and how full it is
Most residents here have their care paid by Medicaid. In California, Medicaid pays for 7% of resident days at a typical home.
- 92% Medicaid
- 5% Medicare
- 3% Private pay, insurance and other
Beds in use, on average86%California typical: 90%
Cost of care per resident day$437California typical: $464
Shares of resident days, from the home’s Medicare cost report for the year ending December 2024. The cost per day is what care costs the home to provide, not the price you would pay; ask the home for its private-pay rate. A busy home may have fewer open beds, so ask about availability.
Ratings over time
Its overall Medicare rating is 5 stars now, the same as 5 stars in January 2019. It has ranged from 2 to 5 stars and changed 8 times.
Overall rating5★
Health inspections4★
Staffing5★
Quality of care5★
Nurse hours per resident per day4.2
20192020202120222023202420252026
Show the values by year
| Month | Overall | Inspections | Staffing | Quality | Nurse hours |
|---|---|---|---|---|---|
| Jan 2019 | 5 | 5 | 4 | 5 | 4.3 |
| Jan 2020 | 5 | 5 | 1 | 5 | 4.1 |
| Jan 2021 | 5 | 5 | 4 | 4 | 4.4 |
| Jan 2022 | 5 | 5 | 3 | 5 | 4.0 |
| Jan 2023 | 5 | 5 | 4 | 5 | 4.4 |
| Jan 2024 | 2 | 1 | 4 | 5 | 4.2 |
| Feb 2025 | 2 | 2 | 3 | 3 | 4.1 |
| Feb 2026 | 3 | 2 | 5 | 3 | 4.2 |
| Sep 2026 | 5 | 4 | 5 | 5 | 4.2 |
Source: Medicare (CMS) monthly Care Compare releases since 2019. Medicare has changed how some ratings are calculated over the years and paused most inspections in 2020, so some jumps reflect rule changes rather than changes at the home. Our methodology
See the full inspection reportEvery citation, fine, staffing figure and quality measure Medicare publishes for this home
From Medicare’s September 2026 data. Each inspection is dated below; staffing comes from payroll records for a recent quarter, and resident outcomes cover the latest period Medicare reports.
Inspection summary
How this facility compares to state and national averages on CMS-reported problems.
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Three-survey history
Citation counts across this facility's three most recent inspection cycles, so you can see whether problems are trending up, down, or holding steady.
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