Gregory D. Williams, PA-C
Physician Assistant (PA-C) in Longview, Texas, licensed in TX and LA, with an NPI issued in February 2007. 104 Medicare patients in 2024, $7,443 paid; nearly all of their 482 Part D prescriptions were generic (97%). A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1326174012 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Feb 26, 2007 |
| Last updated in NPPES | Apr 25, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA05156 | TX |
| Physician Assistant, Medical | 363AM0700X | PA.200052 | LA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in Texas, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Gregory Allen Sr Williams · Nurse/Nurses Aide | 1128b4 | May 18, 2017 | Lufkin, TX |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 104 |
|---|---|
| Services billed | 128 across 20 procedure codes |
| Paid by Medicare | $7,443 |
Part D prescriptions in 2024
| Prescriptions (claims) | 482 · 483 30-day fills |
|---|---|
| Patients | 326 |
| Total drug cost | $3,425 |
| Generic share | 97% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 51 physician assistants in Longview · All physician assistants in Texas