Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Charles C Gregory, DO PA

Family Medicine Physician in Portland, TX · enumerated 2006.

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

National Provider Identifier

1477581221

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Registry record

Entity type Individual (Type 1)

Name Charles C Gregory

Credential DO PA

Sex Male

Practice address 311b Buddy Ganem, Portland, TX, 78374

Phone (361) 643-9800

Fax (361) 643-5112

Enumeration date Jun 29, 2006

Last updated in NPPES Jun 14, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License L7737 (TX) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License L7737 (TX) Secondary

Other identifiers

Identifier	Type	State	Issuer
178461302	Medicaid	TX	-
8U3260	Other	TX	INDIVIDUAL BCBS

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 Charles Gregory?

Charles Gregory is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-14.