Mountain View · 94040
Mountain View Healthcare Center
2530 Solace Place
Mountain View, CA 94040
Villa Siena
⌖ Mountain View, CA · Santa Clara County
No photos yet
Medicare overall rating 1 of 5 stars
Certified beds30
Medicare / MedicaidMedicaid only
OwnershipNon-profit (corporation)
About Villa Siena
Villa Siena is a 30-bed nonprofit nursing home in Mountain View, CA. Medicare rates it 1 out of 5 stars overall (much below average); the average in California is 3.2. At its last full inspection (Jul 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 6 hr 02 min a day with each resident, more than the California average of 4 hr 31 min. About 15% 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 nameVilla Siena
LocationSanta Clara County, California
Phone(650) 961-6484
Address1855 Miramonte Avenue, Mountain View, CA 94040 · Santa Clara County
CMS provider number05A364
Ownership typeNon-profit (corporation)
Official inspection reportsRead them on Medicare.gov ↗
Medicare enrolled sinceSeptember 3, 1986 (40 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
5 strengths and 1 thing to ask about in Medicare's inspection, fine and staffing records for this home. 3 care-quality measures are 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 Jul 2025.Strength
- Fines and penaltiesNoneNo federal fines or payment denials in the last three years.Strength
- Health citations at last inspection11 (Jul 2025)California average: 15.6. Most citations are minor and corrected within weeks.Strength
- Nurse staffing per resident6 hr 02 min a dayCalifornia average: 4 hr 31 minStrength
- Nursing staff turnover15% a yearCalifornia average: 37%Strength
Things to ask about
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- Registered nurse time per resident27 min a dayCalifornia average: 40 minWorse than state 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 injury5.3%State average: 1.6%Worse than average
- Pressure sores (bedsores)7.5%State average: 4.3%Worse than average
- Given antipsychotic drugs28.2%State average: 12.0%Worse than average
Source: Medicare (CMS) quality measures, compared with the California average. Lower is better for every rate shown.
Ratings over time
Its overall Medicare rating is 1 star now, down from 3 stars in January 2019. It has ranged from 1 to 5 stars and changed 11 times.
Overall rating1★
Health inspections3★
Staffing1★
Quality of care1★
Nurse hours per resident per day6.0
20192020202120222023202420252026
Show the values by year
| Month | Overall | Inspections | Staffing | Quality | Nurse hours |
|---|---|---|---|---|---|
| Jan 2019 | 3 | 3 | 1 | 5 | 4.3 |
| Jan 2020 | 5 | 5 | 1 | 5 | 3.7 |
| Jan 2021 | 5 | 5 | – | 5 | 3.9 |
| Jan 2022 | 5 | 5 | 1 | 5 | 5.3 |
| Jan 2023 | 4 | 5 | 1 | 4 | 3.2 |
| Jan 2024 | 4 | 5 | 1 | 2 | 3.3 |
| Feb 2025 | 3 | 4 | 1 | 3 | 5.7 |
| Feb 2026 | 2 | 3 | 3 | 1 | 6.1 |
| Sep 2026 | 1 | 3 | 1 | 1 | 6.0 |
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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