Don Tuan Wynn, M.D.
NPI 1750582458ActiveIndividual· Internal Medicine, Pulmonary Disease· Denison, TX
Internal Medicine, Pulmonary Disease (M.D.) with Fayette Physician Network Inc and 2 other groups, practicing in Denison, Texas. Their prescriptions cost Medicare Part D more than their services did: $213,791 for 945 claims, against $56,521 paid for services in 2024. Viatris Specialty LLC was the largest of 5 companies reporting payments in 2025, $142.70 in all, mostly food and beverage. Lists Centura St. Catherine-Dodge City and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1750582458 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 30, 2007 |
| Last updated in NPPES | Apr 10, 2024 |
| Certified by provider | Apr 10, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | M6469 | TX |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 20763 | ND |
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 - Pulmonary Disease (KS); Practitioner - Internal Medicine (OK); Practitioner - Pulmonary Disease (PA); Practitioner - Pulmonary Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 585 across 35 procedure codes |
| Paid by Medicare | $56,521 |
Part D prescriptions in 2024
| Prescriptions (claims) | 945 · 1,192 30-day fills |
|---|---|
| Patients | 255 |
| Total drug cost | $213,791 |
| Generic share | 54% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical groups
- Fayette Physician Network IncUniontown, PA · 320 clinicians
- Hays Medical Center IncHays, KS · 191 clinicians
- Healthfirst Physicians Management Services, Inc.Oklahoma City, OK · 32 clinicians
Hospital affiliations
- Centura St. Catherine-Dodge CityDodge City, KS
- Hays Medical CenterHays, KS
- Pawnee Valley Community HospitalLarned, KS
- Uniontown HospitalUniontown, PA
- University of Ks Hlth System Great Bend CampusGreat Bend, KS
Industry payments (Open Payments)
- 2025$142.70 · 7 payments from 5 companies
- 2024$110.76 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viatris Specialty LLC | $52.51 | 2 |
| Glaxosmithkline, LLC. | $44.13 | 2 |
| Astrazeneca Pharmaceuticals LP | $16.80 | 1 |
| Abiomed | $15.39 | 1 |
| Insmed, Inc. | $13.87 | 1 |
What the 2025 payments were for
- Food and Beverage$142.70 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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