Mark A. Jeffries, D.O.
NPI 1477513950ActiveIndividual· Internal Medicine, Gastroenterology· Temple, TX
Internal Medicine, Gastroenterology (D.O.) in Temple, Texas, trained at Texas Tech University Health Science Center School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $463,235 for 186 claims, against $40,139 paid for services in 2024. Aimmune Therapeutics, Inc. reported $29.03 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1477513950 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 27, 2006 |
| Last updated in NPPES | Mar 3, 2026 |
| Certified by provider | Mar 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | K9309 | TX |
| Internal Medicine | 207R00000X | K9309 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 302 |
|---|---|
| Services billed | 386 across 37 procedure codes |
| Paid by Medicare | $40,139 |
Part D prescriptions in 2024
| Prescriptions (claims) | 186 · 396 30-day fills |
|---|---|
| Patients | 67 |
| Total drug cost | $463,235 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Texas Tech University Health Science Center School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
Hospital affiliations
Industry payments (Open Payments)
- 2025$29.03 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aimmune Therapeutics, Inc. | $29.03 | 1 |
What the 2025 payments were for
- Food and Beverage$29.03 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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