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

Abby Chang, OTR

Pediatric Occupational Therapist in Valencia, CA · enumerated 2008.

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

National Provider Identifier

1669626016

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Registry record

Entity type Individual (Type 1)

Name Abby Chang

Credential OTR

Sex Female

Practice address Valencia, CA, 91355

Phone (818) 681-8628

Fax (661) 254-2943

Enumeration date Nov 12, 2008

Last updated in NPPES Feb 3, 2017

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

Taxonomy & licenses

225XP0200X Pediatric Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OTR 323 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
1669626016	Medicaid	CA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Abby Chang's NPI record?

Cross-check NPI 1669626016 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1669626016 active?

Yes, as of the latest NPPES snapshot, NPI 1669626016 is active (record last updated 2017-02-03).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-03.