Jeffrey Hal Gillis, DO
NPI 1508125626ActiveIndividual· Internal Medicine, Gastroenterology· Jackson, TN
Internal Medicine, Gastroenterology (DO) with West Tennessee Medical Group Inc and 1 other group, practicing in Jackson, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $404,821 for 322 claims, against $92,729 paid for services in 2024. Abbvie Inc. was the largest of 13 companies reporting payments in 2025, $618.11 in all, mostly food and beverage. Lists Jackson-Madison County General Hospital as a hospital affiliation.
Overview
| NPI | 1508125626 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | May 9, 2012 |
| Last updated in NPPES | Feb 16, 2026 |
| Certified by provider | Feb 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 3450 | TN |
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 - Gastroenterology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 540 |
|---|---|
| Services billed | 906 across 44 procedure codes |
| Paid by Medicare | $92,729 |
Part D prescriptions in 2024
| Prescriptions (claims) | 322 · 442 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $404,821 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- West Tennessee Medical Group IncParis, TN · 194 clinicians
- Gastroenterology Center of the Midsouth PLLCJackson, TN · 149 clinicians
Hospital affiliation
- Jackson-Madison County General HospitalJackson, TN
Industry payments (Open Payments)
- 2025$618.11 · 31 payments from 13 companies
- 2024$297.04 · 15 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $185.58 | 8 |
| Aimmune Therapeutics, Inc. | $93.62 | 5 |
| Takeda Pharmaceuticals U.S.A., Inc. | $89.42 | 4 |
| Janssen Biotech, Inc. | $38.71 | 2 |
| Lilly USA, LLC | $37.36 | 2 |
What the 2025 payments were for
- Food and Beverage$618.11 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Jackson
- 1326509498
- 1902891914
- 1457346041
- 1356393078
- 1073871133
- 1629025697
- 1053514141
- 1700873056
- 1881635803
- 1982824561
- 1477525103
- 1265920557
All Internal Medicine, Gastroenterology providers in Tennessee →