Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gregory D Williams, PA-C
Physician Assistant in Longview, TX · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326174012
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Registry record
Entity type Individual (Type 1)
Name Gregory D Williams
Credential PA-C
Sex Male
Practice address 700 E Marshall Ave, Longview, TX, 75601
Phone (903) 315-2000
Fax (903) 315-5383
Enumeration date Feb 26, 2007
Last updated in NPPES Apr 25, 2014
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA05156 (TX) Primary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA.200052 (LA) Secondary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| PA05156 | Other | TX | LICENSE |
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.
Frequently asked questions
What is the NPI number for Gregory Williams?
The National Provider Identifier (NPI) for Gregory Williams is 1326174012, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gregory Williams practice?
The practice location on file with NPPES is in Longview, TX. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Peter Jerome Pulmonary Disease Physician · Longview, TX NPI 1396740668 Sushama Brimmer Internal Medicine Physician · Longview, TX NPI 1184629990 Select Specialty Hospital - Longview Inc Long Term Care Hospital · Longview, TX NPI 1861492670 Weng Yu Thong Anesthesiology Physician · Longview, TX NPI 1255329322 Brian Mendenhall Emergency Medicine Physician · Longview, TX NPI 1306835442 Stanley Upchurch Emergency Medicine Physician · Longview, TX NPI 1083603021 James Nichols Emergency Medicine Physician · Longview, TX NPI 1447249503 Angela Ozment Internal Medicine Physician · Longview, TX NPI 1598754657
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-25.