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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ada L Chan, OTR/L

Occupational Therapist in Astoria, NY · enumerated 2025.

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

National Provider Identifier

1417817636

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Registry record

Entity type Individual (Type 1)
Name Ada L Chan
Credential OTR/L
Sex Female
Practice address Astoria, NY, 11106
Phone (718) 383-1785
Enumeration date Nov 12, 2025
Last updated in NPPES Mar 10, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 030676 (NY) Primary

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 is the NPI number for Ada Chan?
The National Provider Identifier (NPI) for Ada Chan is 1417817636, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ada Chan practice?
The practice location on file with NPPES is in Astoria, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-10.