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On Lok Senior Health Services

Adult Day Care Clinic/Center in San Jose, CA · enumerated 2009 · authorized official Grace Harper, Chief Executive Officer.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1356582191

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Registry record

Entity type Organization (Type 2)
Legal business name On Lok Senior Health Services
Other name <Unavail>
Practice address 299 Stockton Ave, San Jose, CA, 95126
Phone (408) 535-4652
Enumeration date Mar 6, 2009
Last updated in NPPES May 13, 2022

Taxonomy & classification

261QA0600X Adult Day Care Clinic/Center Ambulatory Health Care Facilities · License 550000839 (CA) Primary

Authorized official

Name Grace Harper
Title Chief Executive Officer
Phone (415) 292-8883

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-05-13. Verify at npiregistry.cms.hhs.gov.
Where is On Lok Senior Health Services located?
The practice location on file with NPPES is in San Jose, CA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-13.