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UPDATED JUL 2026

Assisted Living, Nursing Homes · Medicare certified

Villa Siena

1855 Miramonte Avenue · Mountain View, CA 94040 · Lic. #430708114 (CA) · 77 certified beds

(650) 961-6484

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Public record

CMS Care Compare · Updated Jul 2026

Certification

  • Medicare-certified (CMS Certification Number on file)

Ratings

Not yet ratedSource: CMS Care Compare · Updated 2025Q4.GOV

Staffing rating

Not published

Quality-measure rating

Not published

Inspections on record

Not published

Cited deficiencies

Not published

3.0(CMS Care Compare)Source: CMS Care Compare · Updated 2026-06-01.GOV

Staffing rating

5.0

Quality-measure rating

1.0

Inspections on record

2

Cited deficiencies

24

Inspection history (34)

  • April 22, 2024 · D

    Citation F0880

    Federal surveyors cited this nursing home on 2024-04-22 under CMS tag F0880 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Provide and implement an infection prevention and control program. The deficiency was recorded as corrected on 2024-05-09. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2024-04-22.GOV
  • April 22, 2024 · E

    Citation F0812

    Federal surveyors cited this nursing home on 2024-04-22 under CMS tag F0812 (CMS scope/severity E: pattern, no actual harm, potential for more than minimal harm) for Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards. The deficiency was recorded as corrected on 2024-05-09. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2024-04-22.GOV
  • April 22, 2024 · D

    Citation F0813

    Federal surveyors cited this nursing home on 2024-04-22 under CMS tag F0813 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Have a policy regarding use and storage of foods brought to residents by family and other visitors. The deficiency was recorded as corrected on 2024-05-09. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2024-04-22.GOV
  • August 24, 2023 · D

    Citation F0726

    Federal surveyors cited this nursing home on 2023-08-24 under CMS tag F0726 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Ensure that nurses and nurse aides have the appropriate competencies to care for every resident in a way that maximizes each resident's well being. The deficiency was recorded as corrected on 2023-08-25. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2023-08-24.GOV
  • December 9, 2022 · D

    Citation F0761

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0761 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Ensure drugs and biologicals used in the facility are labeled in accordance with currently accepted professional principles; and all drugs and biologicals must be stored in locked compartments, separately locked, compartments for controlled drugs. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · E

    Citation F0880

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0880 (CMS scope/severity E: pattern, no actual harm, potential for more than minimal harm) for Provide and implement an infection prevention and control program. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · D

    Citation F0684

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0684 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Provide appropriate treatment and care according to orders, resident’s preferences and goals. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · D

    Citation F0712

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0712 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Ensure that the resident and his/her doctor meet face-to-face at all required visits. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · D

    Citation F0851

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0851 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Electronically submit to CMS complete and accurate direct care staffing information, based on payroll and other verifiable and auditable data. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · D

    Citation F0658

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0658 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Ensure services provided by the nursing facility meet professional standards of quality. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · D

    Citation F0755

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0755 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Provide pharmaceutical services to meet the needs of each resident and employ or obtain the services of a licensed pharmacist. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · D

    Citation F0727

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0727 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Have a registered nurse on duty 8 hours a day; and select a registered nurse to be the director of nurses on a full time basis. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · D

    Citation F0732

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0732 (CMS scope/severity D: isolated, no actual harm, potential for more than minimal harm) for Post nurse staffing information every day. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV
  • December 9, 2022 · E

    Citation F0812

    Federal surveyors cited this nursing home on 2022-12-09 under CMS tag F0812 (CMS scope/severity E: pattern, no actual harm, potential for more than minimal harm) for Procure food from sources approved or considered satisfactory and store, prepare, distribute and serve food in accordance with professional standards. The deficiency was recorded as corrected on 2023-01-08. Source: CMS Care Compare Health Deficiencies (as of 2026-06-01).

    View original record (opens in a new tab)Source: CMS Care Compare · Updated 2022-12-09.GOV

Penalties

Total fines on file: $0

Staffing

Latest: 6.12 nurse staffing hours per resident per day (2026-06-01)

Staffing trend (2 periods)

  1. 2025Q46.12 hrs/resident/day
  2. 2026-06-016.12 hrs/resident/day

Most recent period is about the same as 2025Q4. Figures are CMS-reported nurse staffing hours, not our estimate.

Ownership

Non profit - Corporation

Ratings, inspections, and penalties are public records, reproduced in plain English without edits to their substance. View source records · What these measures mean.

Typical cost

Genworth Cost of Care Survey · 2024

This provider doesn't publish a specific price to us. Below is the typical CA range for the care type(s) it offers. Use it as context, not a quote.

Assisted Living

Median · CA$6,860/mo
See full CA cost breakdownSource: Genworth Cost of Care Survey · Updated 2024

Assisted Living

Median · CA$7,000/mo
See full CA cost breakdownSource: Genworth CareScout Cost of Care Survey · Updated 2025

Nursing Homes

Median · CA$11,060/mo
See full CA cost breakdownSource: Genworth Cost of Care Survey · Updated 2024

Nursing Homes

Median · CA$12,167/mo
See full CA cost breakdownSource: Genworth CareScout Cost of Care Survey · Updated 2025

Nearby alternatives

Other licensed providers in Mountain View, with their own public records.

Deciding between options? Nursing Homes Guide: Skilled Nursing & Long-Term Care

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Villa Siena in Mountain View, CA · Inspections page 2 · ElderCareCosts