Gregory D. Williams, PA-C
Physician Assistant · Longview, TX
Gregory D. Williams, PA-C is a physician assistant with a practice address in Longview, Texas, and NPI 1326174012, issued on Feb 26, 2007. Check the license (Texas PA05156, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory D. Williams
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA05156 TX
PA.200052 LA
Self-reported in NPPES; status is on the state search - Practice location
- 700 E Marshall Ave, Longview, TX 75601
- Phone
- (903) 315-2000
- Enumerated
- Feb 26, 2007
- Record last updated
- Apr 25, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (903) 315-5383
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 10,999 in Texas → Look up another NPI →
Also registered at 700 E Marshall Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory D. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license PA05156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average physician assistant in 2024
482 Medicare Part D claims for 326 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 19 claims were for opioids.
Most prescribed
- Cephalexin54 claims
- Ondansetron Odt53 claims
- Meloxicam43 claims
- Prednisone33 claims
- Naproxen27 claims
- Amoxicillin-Clavulanate Potass24 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Gregory D. Williams among 10,999 physician assistant records in Texas
Gregory D. Williams, PA-C is one of 10,999 physician assistant records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 14% of them.
- NPI issued2007 · 14% of these records are older, 80% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2014 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 physician assistant records list a practice address in Longview
They are 48 of the 2,066 NPPES records with a practice address in Longview, and 10,999 physician assistant records in Texas.
All 10,999 in Texas → Every provider in Longview → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Denis Adams, PACLongview, TX 756011174501811
- Devin Brecheen, PALongview, TX 756011447534854
- Rashida Johnson, PALongview, TX 756011548455389
- Stephen Lummus, PA-CLongview, TX 756011255528006
- Tariq Malik, PALongview, TX 756011912997602
- Michelle McCaskill, PALongview, TX 756011235278292
- Katie McKinley, PA-CLongview, TX 756011205144086
- Randy Moore, PA-CLongview, TX 756011053627265
Common questions
What is Gregory D. Williams, PA-C's NPI number?
Gregory D. Williams, PA-C's National Provider Identifier (NPI) is 1326174012, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory D. Williams, PA-C located?
The NPPES record lists a practice address at 700 E Marshall Ave, Longview, TX, 75601. Phone: (903) 315-2000. Providers update this record themselves, so call before visiting.
How can I verify Gregory D. Williams, PA-C's license?
NPPES lists Texas license number PA05156, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory D. Williams, PA-C prescribe under Medicare Part D?
In 2024, Gregory D. Williams, PA-C had 482 Medicare Part D claims for 326 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.