Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eric Chang, DO

Gynecology Physician in Buffalo, NY · enumerated 2008.

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

National Provider Identifier

1538321203

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Registry record

Entity type Individual (Type 1)

Name Eric Chang

Credential DO

Sex Male

Practice address 835 Hopkins Rd, Buffalo, NY, 14221

Phone (315) 469-8700

Enumeration date Jun 25, 2008

Last updated in NPPES Apr 26, 2021

Taxonomy & licenses

207VX0000X Obstetrics Physician Allopathic & Osteopathic Physicians · License 25MB08395900 (NJ) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 25MB08395900 (NJ) Secondary

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License 301263 (NY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0184969	Medicaid	NJ	-

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Eric Chang?

Eric Chang is registered in NPPES with the primary taxonomy of Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-26.