St John Kronstadt Convalescent Center
Castro Valley, California
4432 James Avenue, Castro Valley, CA, 94546
St John Kronstadt Convalescent Center Quality & Safety Report
Average
CMS Official Overall: 3★ / 5
CMS data as of March 2026
This score is calculated from three federally reported CMS metrics: Health Inspections (weighted 50%), Staffing levels (25%), and Quality Measures (25%). Facilities with serious safety findings receive score deductions. For centers with 5+ Google reviews, resident feedback contributes 15% of the final score. Learn more →
Safety & Inspections
- Health deficiencies
- National median: 7
CMS data as of March 1, 2026
Staffing breakdown
Average hours of nursing care each resident receives per day, by staff role. Higher numbers generally indicate more attentive care.
- Total nurse staffing
- National median: 4.12 hrs
- Registered nurse (RN) 0.75 hrs
- Licensed practical nurse (LPN) 0.89 hrs
- Certified nursing aide (CNA) 2.60 hrs
- Physical therapy 0.11 hrs
Quality rating trend
Overall rating improved from 2 to 3 stars over 18 data points.
- Overall
- Health inspection
- Staffing
- Quality measures
Facility profile
- Type
- Skilled Nursing Facility · Building
- Capacity
- 49 certified beds · ~42 avg residents/day (86% occupancy)
- Ownership
- Non profit - Corporation
- Payment accepted
- Medicare Medicaid (Medicare and Medicaid)
About
St. John Kronstadt Convalescent Center is a 49-bed non-profit skilled nursing facility located in Castro Valley, California. It holds a 3-star overall rating from the Centers for Medicare & Medicaid Services, featuring a 5-star rating for staffing and a 2-star rating for health inspections. The facility’s quality measures are rated at 3 stars.
Location
4432 James Avenue, Castro Valley, CA, 94546, Castro Valley, CA
Frequently asked questions
- What is the overall CMS rating for St John Kronstadt Convalescent Center?
- St John Kronstadt Convalescent Center has an overall CMS rating of 3 out of 5 stars.
- How did St John Kronstadt Convalescent Center score on health inspections?
- St John Kronstadt Convalescent Center received a health inspection rating of 2 out of 5 stars from CMS.
- What is the staffing rating for St John Kronstadt Convalescent Center?
- St John Kronstadt Convalescent Center has a staffing rating of 5 out of 5 stars, based on nurse-to-resident ratios.
- How many beds does St John Kronstadt Convalescent Center have?
- St John Kronstadt Convalescent Center has 49 certified beds.
- Does St John Kronstadt Convalescent Center accept Medicare or Medicaid?
- Yes, St John Kronstadt Convalescent Center accepts Medicare and Medicaid.
- Where is St John Kronstadt Convalescent Center located?
- St John Kronstadt Convalescent Center is located at 4432 James Avenue, Castro Valley, CA, 94546, Castro Valley, California.
- How can I contact St John Kronstadt Convalescent Center?
- You can reach St John Kronstadt Convalescent Center by phone at +1 510-889-7000.
Nearby facilities
- East Bay Post Acute 1.2 mi
20259 Lake Chabot Rd, Castro Valley, 94546
- Valley Pointe Nursing & Rehabilitation Center 1.3 mi
20090 Stanton Avenue, Castro Valley, CA, 94546
- Canyon Creek Post-Acute 1.4 mi
22103 Redwood Rd, Castro Valley, 94546
- Baywood Court Health Center 1.6 mi
21966 Dolores Street, Castro Valley, CA, 94546
About this data
How to read this page
Star ratings vs. Care Quality Score: The Google star rating reflects visitor and family opinions collected from public reviews. The Care Quality Score is an independent metric derived entirely from federal inspection data — the two measure different things, and comparing them side-by-side gives a fuller picture.
Where this data comes from
All clinical data on this page originates from the Centers for Medicare & Medicaid Services (CMS), the federal agency that certifies and inspects every Medicare- and Medicaid-participating nursing home in the United States. Reviews are imported verbatim from public Google business listings.
What to do next
Data is a starting point, not a final answer. We encourage families to visit facilities in person, observe daily routines, and speak with staff and residents. See our guide: Questions to Ask When Visiting →
Listing data sourced from CMS provider records and public Google business data. ACD-HUB independently aggregates and never accepts paid placement.