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On Lok Senior Health Services

Adult Day Care Clinic/Center in Union City, CA · enumerated 2025 · authorized official Grace Harper, Chief Executive Officer.

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

National Provider Identifier

1548060601

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Registry record

Entity type Organization (Type 2)
Legal business name On Lok Senior Health Services
Practice address 2600 Central Ave, Union City, CA, 94587
Phone (415) 292-8888
Enumeration date Mar 18, 2025
Last updated in NPPES Mar 18, 2025

Taxonomy & classification

261QA0600X Adult Day Care Clinic/Center Ambulatory Health Care Facilities 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

What type of organization is On Lok Senior Health Services?
On Lok Senior Health Services is registered in NPPES as a Adult Day Care Clinic/Center (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-18.