Gregory W. Dinwiddie, PAC
NPI 1578567848ActiveIndividual· Physician Assistant· Oklahoma City, OK
Physician Assistant (PAC) with Integris Cardiovascular Physicians LLC, practicing in Oklahoma City, Oklahoma. 147 Medicare patients in 2024, $21,163 paid; nearly all of their 124 Part D prescriptions were generic (94%). Abiomed was the largest of 10 companies reporting payments in 2025, $834.97 in all, mostly food and beverage. Lists Integris Baptist Medical Center, Inc and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1578567848 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PAC |
| Sole proprietor | No |
| NPI issued | Jun 2, 2005 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 1037 | OK |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| 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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 147 |
|---|---|
| Services billed | 287 across 52 procedure codes |
| Paid by Medicare | $21,163 |
Part D prescriptions in 2024
| Prescriptions (claims) | 124 · 156 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $5,240 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Integris Cardiovascular Physicians LLCOklahoma City, OK · 116 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Integris Health Edmond HospitalEdmond, OK
- Integris Southwest Medical CenterOklahoma City, OK
Industry payments (Open Payments)
- 2025$834.97 · 20 payments from 10 companies
- 2024$1,451 · 36 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abiomed | $297.16 | 4 |
| Medtronic, Inc. | $206.38 | 7 |
| Bolton Medical Inc | $168.66 | 1 |
| Edwards Lifesciences Corporation | $44.54 | 2 |
| Depuy Synthes Sales Inc. | $29.30 | 1 |
What the 2025 payments were for
- Food and Beverage$834.97 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other physician assistants in Oklahoma City
- 1003538836
- 1013339522
- 1013517168
- 1013556075
- 1023320199
- 1023346806
- 1023584588
- 1033488895
- 1033624523
- 1033675954
- 1043215593
- 1043515018
All 687 physician assistants in Oklahoma City · All physician assistants in Oklahoma