Gregory M. Dunham, MD
NPI 1679556054ActiveIndividual· Obstetrics & Gynecology· San Angelo, TX
Obstetrics & Gynecology (MD) in San Angelo, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1983). 160 Medicare patients in 2024, $30,133 paid; nearly all of their 623 Part D prescriptions were generic (92%). Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $9,353 in all, mostly education.
Overview
| NPI | 1679556054 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 21, 2005 |
| Last updated in NPPES | Dec 28, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | G5006 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (IA); Practitioner - Obstetrics/Gynecology (OK); Practitioner - Obstetrics/Gynecology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 160 |
|---|---|
| Services billed | 931 across 44 procedure codes |
| Paid by Medicare | $30,133 |
Part D prescriptions in 2024
| Prescriptions (claims) | 623 · 1,591 30-day fills |
|---|---|
| Patients | 178 |
| Total drug cost | $35,236 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Obstetrics/Gynecology |
Medical groups
- Shannon ClinicSan Angelo, TX · 559 clinicians
- The West Texas Rehabilitation CenterSan Angelo, TX · 466 clinicians
Hospital affiliation
- Shannon Medical CenterSan Angelo, TX
Industry payments (Open Payments)
- 2025$9,353 · 12 payments from 2 companies
- 2024$10,609 · 26 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $9,327 | 9 |
| Organon LLC | $26.17 | 3 |
What the 2025 payments were for
- Education$4,000 · 1 payment
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$4,000 · 1 payment
- Travel and Lodging$951.30 · 4 payments
- Food and Beverage$401.81 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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