Samuel Hunter Dunn, MD
NPI 1689038416ActiveIndividual· Internal Medicine, Gastroenterology· North Little Rock, AR
Internal Medicine, Gastroenterology (MD) in North Little Rock, Arkansas, trained at University of Texas Southwestern Medical School at Dallas (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $638,496 for 1,429 claims, against $152,183 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,397 in all, mostly food and beverage.
Overview
| NPI | 1689038416 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 7, 2016 |
| Last updated in NPPES | Jul 18, 2023 |
| Certified by provider | Jul 18, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | E12110 | AR |
| Internal Medicine | 207R00000X | E12110 | AR |
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 (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 620 |
|---|---|
| Services billed | 2,274 across 51 procedure codes |
| Paid by Medicare | $152,183 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,429 · 2,083 30-day fills |
|---|---|
| Patients | 527 |
| Total drug cost | $638,496 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Gastroenterology |
Medical group
- Gastro Clinics of Arkansas PLLCNorth Little Rock, AR · 7 clinicians
Hospital affiliations
- Baptist Health Medical Center North Little RockNorth Little Rock, AR
- Baptist Health Medical Center-Little RockLittle Rock, AR
Industry payments (Open Payments)
- 2025$1,397 · 83 payments from 14 companies
- 2024$1,178 · 73 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $444.81 | 32 |
| Braintree Laboratories, Inc. | $201.80 | 6 |
| Janssen Biotech, Inc. | $167.93 | 9 |
| Takeda Pharmaceuticals U.S.A., Inc. | $150.45 | 9 |
| Regeneron Healthcare Solutions, Inc. | $83.94 | 3 |
What the 2025 payments were for
- Food and Beverage$1,225 · 80 payments
- Gift$163.62 · 2 payments
- Education$9.24 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in North Little Rock
- 1295963379
- 1326466020