Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Peter Tae-Jin Chang, M.D.

Ophthalmology Physician in Houston, TX · enumerated 2005.

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

National Provider Identifier

1568451797

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Registry record

Entity type Individual (Type 1)

Name Peter Tae-Jin Chang

Credential M.D.

Sex Male

Practice address 1977 Butler Blvd, Houston, TX, 77030

Phone (713) 798-6100

Fax (713) 798-4082

Enumeration date Oct 20, 2005

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207WX0009X Glaucoma Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License L8645 (TX) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License L8645 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1038135	Other	TX	BLUE LINK
8G7723	Other	TX	BC/BS
165744702	Medicaid	TX	-
165744701	Medicaid	TX	-

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 Peter Chang?

Peter Chang is registered in NPPES with the primary taxonomy of Ophthalmology 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 2022-07-21.