Brandon Arthur Conkling, D.O.
NPI 1134273378ActiveIndividual· Internal Medicine, Gastroenterology· Tulsa, OK
Internal Medicine, Gastroenterology (D.O.) in Tulsa, Oklahoma, trained at Oklahoma State University College of Osteopathic Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $758,367 for 858 claims, against $151,704 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $1,852 in all, mostly food and beverage.
Overview
| NPI | 1134273378 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jan 23, 2007 |
| Last updated in NPPES | Mar 29, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 4469 | OK |
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 - Internal Medicine (OK); Practitioner - Gastroenterology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 458 |
|---|---|
| Services billed | 4,540 across 32 procedure codes |
| Paid by Medicare | $151,704 |
Part D prescriptions in 2024
| Prescriptions (claims) | 858 · 1,652 30-day fills |
|---|---|
| Patients | 384 |
| Total drug cost | $758,367 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Oklahoma State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Gastroenterology |
Medical groups
- Cherokee NationTahlequah, OK · 449 clinicians
- Creek Nation Hospital and ClinicsOkmulgee, OK · 365 clinicians
- Adult Gastroenterology Associates IncBartlesville, OK · 15 clinicians
Hospital affiliations
- Muscogee (Creek) Nation Medical CenterOkmulgee, OK
- Oklahoma Surgical Hospital, LLCTulsa, OK
- Saint Francis Hospital MuskogeeMuskogee, OK
- Saint Francis Hospital South, LLCTulsa, OK
- Saint Francis Hospital, IncTulsa, OK
Industry payments (Open Payments)
- 2025$1,852 · 99 payments from 19 companies
- 2024$1,993 · 113 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $398.58 | 26 |
| Pfizer Inc. | $292.05 | 16 |
| Janssen Biotech, Inc. | $221.36 | 13 |
| Regeneron Healthcare Solutions, Inc. | $164.93 | 6 |
| Takeda Pharmaceuticals U.S.A., Inc. | $150.91 | 7 |
What the 2025 payments were for
- Food and Beverage$1,852 · 99 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Gastroenterology providers in Oklahoma →