NPI Portal NPI Lookup & Verification

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

Dong L Chang, M.D., INC.

Dermatopathology Physician in Arcadia, CA · enumerated 2005.

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

National Provider Identifier

1235136243

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Registry record

Entity type Individual (Type 1)
Name Dong L Chang
Credential M.D., INC.
Sex Male
Practice address Arcadia, CA, 91006
Phone (626) 821-5998
Fax (626) 821-5990
Enumeration date Jul 5, 2005
Last updated in NPPES Oct 6, 2023

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

Taxonomy & licenses

207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License A33186 (CA) Secondary
207NS0135X Procedural Dermatology Physician Allopathic & Osteopathic Physicians · License A33186 (CA) Secondary
207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License A33186 (CA) Secondary
207ND0900X Dermatopathology Physician Allopathic & Osteopathic Physicians · License A33186 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Dong Chang practice?
The practice location on file with NPPES is in Arcadia, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Dong Chang?
The National Provider Identifier (NPI) for Dong Chang is 1235136243, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-06.