Care compare
Villa Siena, Mountain View, CA
CCN 05A364
CMS Care Compare data for this nursing home: ratings, staffing, inspections, ownership, and contact details.
Villa Siena has a CMS overall star rating of 1 out of 5 star in the Care Compare data as of October 8, 2026.
Beds: 30. Ownership: Non profit - Corporation.
1855 Miramonte Avenue, Mountain View, CA 94040. Phone (650) 961-6484.
Source: CMS Care Compare nursing home data (Provider Information, 4pq5-n9py), as of October 8, 2026. Publisher page
RUN IT IN RIVVI
Get the Medicare home health and hospice rules
Rivvi writes the Medicare home health and hospice criteria with CMS document IDs and effective dates.
Build the rulesFree to start. Opens Rivvi, the AI workspace for healthcare teams.
2M+ interactions500K+ patientsHIPAA BAA
CMS star ratings
- Overall rating
- 1 of 5
- Health inspection rating
- 3 of 5
- Staffing rating
- 1 of 5
- Quality measures rating
- 1 of 5
- Long-stay quality measures rating
- 1 of 5
- Short-stay quality measures rating
- Not available
Data from CMS Care Compare as of October 8, 2026. Ratings are 1 to 5 stars as CMS publishes them. "Not available" means the CMS file has no rating for this field.
RUN IT IN RIVVI
Get the Medicare home health and hospice rules
Rivvi writes the Medicare home health and hospice criteria with CMS document IDs and effective dates.
Build the rulesFree to start. Opens Rivvi, the AI workspace for healthcare teams.
2M+ interactions500K+ patientsHIPAA BAA
Address and contact
- Address
- 1855 Miramonte Avenue, Mountain View, CA 94040
- County
- Santa Clara
- Phone
- (650) 961-6484
- CMS Certification Number (CCN)
- 05A364
Is this your facility? Claim this page, free.
This page shows public data only, from the CMS Care Compare data as of October 8, 2026. Claiming it is free. Rivvi confirms you run this facility before anything you add appears here.
Claim this pageBeds, residents, and ownership
- Beds (CMS bed count)
- 30
- Average residents per day
- 28.5
- CMS certification (provider type)
- Medicaid
- Ownership type
- Non profit - Corporation
- Legal business name
- Legal Business Name Not Available
- Located inside a hospital
- No
- Continuing care retirement community
- No
- Resident and family council type
- Resident
- Sprinklers in all required areas
- Yes
- Date CMS first approved the nursing home
- September 3, 1986
Source: CMS Care Compare nursing home data (Provider Information, 4pq5-n9py), as of October 8, 2026. Publisher page
Staffing (reported hours per resident per day)
- Total nurse staff
- 6.04 hours
- Registered nurse (RN)
- 0.45 hours
- Licensed practical nurse (LPN)
- 1.88 hours
- Nurse aide
- 3.71 hours
- Total nurse staff on weekends
- 5.81 hours
- RN on weekends
- 0.40 hours
- Physical therapist
- 0.00 hours
- Case-mix adjusted total nurse staff
- 6.57 hours
- Total nursing staff turnover
- 15.2%
- Administrators who have left
- 0
Source: CMS Care Compare nursing home data (Provider Information, 4pq5-n9py), as of October 8, 2026. Publisher page
Health inspections
- Most recent standard survey
- July 28, 2025
- Health deficiencies, most recent cycle
- 11
- Standard survey deficiencies
- 11
- Complaint deficiencies
- 0
- Prior standard survey
- April 22, 2024
- Health deficiencies, prior cycles
- 12
- Total weighted health survey score
- 86.0
Source: CMS Care Compare nursing home data (Provider Information, 4pq5-n9py), as of October 8, 2026. Publisher page
Penalties
- Fines
- 0
- Total amount of fines
- $0
- Payment denials
- 0
- Total penalties
- 0
Source: CMS Care Compare nursing home data (Provider Information, 4pq5-n9py), as of October 8, 2026. Publisher page
Other nursing homes nearby
- Mountain View Healthcare CenterMountain View, CMS rating 3 of 5
- Camino Ridge Post-AcuteMountain View, CMS rating 1 of 5
- Childrens HC Org No Ca -Pediatric Hospital D/P SNFCampbell, CMS rating 5 of 5
- Childrens HC Org No Ca Saratoga Pediatric SubacuteSaratoga, CMS rating 5 of 5
- Creekside Post-AcuteSan Jose, CMS rating 5 of 5
- Idylwood Care CenterSunnyvale, CMS rating 5 of 5
- Lincoln Glen Skilled NursingSan Jose, CMS rating 5 of 5
- O'Connor Hospital D/P SNFSan Jose, CMS rating 5 of 5
Related
- Nursing Homes in Mountain View, CA3 in CMS data
- Nursing Homes in California
- Home Health Agencies in Mountain View, CA
- Dialysis Centers in Mountain View, CA
- Hospitals in Mountain View, CA
- CLIA labs in Mountain View, CA
- NPI records in Mountain View, CA
- Santa Clara County health data
- Nursing home ratings by state
- Nursing Homes by state
Show these CMS ratings on your site
A badge with this nursing home's CMS overall star rating that links back to this page. The image updates with each CMS release.
Questions
What is the CMS rating for Villa Siena?
Villa Siena has a CMS overall star rating of 1 out of 5 star in the CMS Care Compare data as of October 8, 2026.
Where is Villa Siena?
1855 Miramonte Avenue, Mountain View, CA 94040 (Santa Clara County), per the CMS file.
What is the phone number for Villa Siena?
CMS lists (650) 961-6484 for Villa Siena.
What does CMS list as Villa Siena's certification?
The CMS provider type field reads "Medicaid". That is the CMS certification field as published; it is not a statement about any person's coverage.
RUN IT IN RIVVI
Get the Medicare home health and hospice rules
Rivvi writes the Medicare home health and hospice criteria with CMS document IDs and effective dates.
Build the rulesFree to start. Opens Rivvi, the AI workspace for healthcare teams.
2M+ interactions500K+ patientsHIPAA BAA