Gwynn R. Patterson, MD
NPI 1134111941ActiveIndividual· Obstetrics & Gynecology· Sierra Vista, AZ
Obstetrics & Gynecology (MD) in Sierra Vista, Arizona, trained at George Washington University School of Medicine (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $34,314 for 271 claims, against $7,351 paid for services in 2024.
Overview
| NPI | 1134111941 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 17, 2005 |
| Last updated in NPPES | Jan 29, 2026 |
| Certified by provider | Jan 29, 2026 |
| Reactivated | Apr 10, 2006 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 14904 | AZ |
| Medical Genetics, Ph.D. Medical Genetics | 170100000X | 14904 | AZ |
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 - Obstetrics/Gynecology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 60 |
|---|---|
| Services billed | 135 across 13 procedure codes |
| Paid by Medicare | $7,351 |
Part D prescriptions in 2024
| Prescriptions (claims) | 271 · 580 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $34,314 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Obstetrics/Gynecology |
Hospital affiliation
- Canyon Vista Medical CenterSierra Vista, AZ
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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