Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregg Jeffry Dimmick, MD

Pediatrics Physician in Wharton, TX · enumerated 2006.

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

National Provider Identifier

1013970680

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregg Jeffry Dimmick

Credential MD

Sex Male

Practice address 2100 Regional Medical Dr, Wharton, TX, 77488

Phone (979) 532-1700

Fax (979) 532-6793

Enumeration date Apr 6, 2006

Last updated in NPPES Oct 30, 2012

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License F0169 (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
124957507	Medicaid	TX	-
820622	Other	TX	BC/BS TX #
124957502	Medicaid	TX	-
8DE526	Other	TX	BC/BS #
370002795	Other	TX	RAILROAD GBA - RAILROAD MEDICARE

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

What specialty is Gregg Dimmick?

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

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-30.