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Nursing home / skilled nursing

Villa Siena

Nursing home / skilled nursing in Mountain View, California

Checked October 31, 2026

Provider details
Address1855 MIRAMONTE AVENUE
CityMountain View
StateCalifornia
ZIP code94040
CountySanta Clara
Phone650-961-6484
CMS certification number (CCN)05A364
OwnershipNon profit - Corporation
Certified beds30
CertificationMedicaid
First approved for Medicare/MedicaidSeptember 3, 1986
Located in a hospitalN
Continuing care retirement communityN
Care typesskilled nursing, rehab services
Services offeredskilled nursing care, rehabilitation services

Villa Siena is in 1855 MIRAMONTE AVENUE, Mountain View, CA 94040. Phone: 650-961-6484. Ownership: Non profit - Corporation. CMS rates it 1 out of 5 stars overall (health inspection 3, staffing 1, quality measures 1). CMS inspection and staffing detail: total weighted health survey score 86.000; 0 federal fines totaling $0.00; total nursing staff turnover 22.7%.

Quality measures

Source: CMS · CMS processing date: 2026-10-01

Star ratings and staffing hours
Overall rating1 of 5
Health inspection rating3 of 5
Staffing rating1 of 5
Quality measure rating1 of 5
Long-stay quality rating1 of 5
RN staffing hours per resident per day0.26
Total nurse staffing hours per resident per day5.65

Inspection results

Source: CMS · processing date 2026-10-01
Rating Cycle 1 Total Health Score88
Total Weighted Health Survey Score86.000
Rating Cycle 2/3 Total Health Score80
Rating Cycle 1 Health Deficiency Score88
Rating Cycle 2/3 Health Deficiency Score80
Rating Cycle 1 Standard Survey Health Date2025-07-28
Rating Cycle 1 Total Number of Health Deficiencies11
Rating Cycle 2/3 Total Number of Health Deficiencies12
Rating Cycle 1 Number of Standard Health Deficiencies11
Rating Cycle 1 Number of Complaint Health Deficiencies0
Rating Cycle 2/3 Number of Complaint Health Deficiencies1

Staffing

Source: CMS · processing date 2026-10-01
Nursing Case-Mix Index1.27264
Registered Nurse turnover40.0
Nursing Case-Mix Index Ratio0.90242
Total nursing staff turnover22.7
Reported LPN Staffing Hours per Resident per Day1.92528
Reported Licensed Staffing Hours per Resident per Day2.18180
Number of administrators who have left the nursing home0
Reported Nurse Aide Staffing Hours per Resident per Day3.46616
Registered Nurse hours per resident per day on the weekend0.22366
Total number of nurse staff hours per resident per day on the weekend5.37661

Penalties

Source: CMS · processing date 2026-10-01
Number of Fines0
Number of Payment Denials0
Total Number of Penalties0
Total Amount of Fines in Dollars0.00

Ownership

Source: CMS · processing date 2026-10-01
Legal Business NameLegal Business Name Not Available
Provider Changed Ownership in Last 12 MonthsN

Occupancy and payer mix

Source: CMS · processing date 2026-10-01
Abuse IconN
High Performing IconN
With a Resident and Family CouncilResident
Average Number of Residents per Day29.8
Automatic Sprinkler Systems in All Required AreasYes
Most Recent Health Inspection More Than 2 Years AgoN

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