James Michael Corkum, M.D.
NPI 1154387280ActiveIndividual· Internal Medicine, Gastroenterology· Towson, MD
Internal Medicine, Gastroenterology (M.D.) in Towson, Maryland, trained at Johns Hopkins University School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $136,945 for 354 claims, against $80,328 paid for services in 2024. Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $867.76 in all, mostly food and beverage.
Overview
| NPI | 1154387280 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 26, 2006 |
| Last updated in NPPES | Nov 30, 2020 |
| Certified by provider | Nov 30, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | D34084 | MD |
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 (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 521 |
|---|---|
| Services billed | 689 across 30 procedure codes |
| Paid by Medicare | $80,328 |
Part D prescriptions in 2024
| Prescriptions (claims) | 354 · 571 30-day fills |
|---|---|
| Patients | 172 |
| Total drug cost | $136,945 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Greater Baltimore Medical CenterTowson, MD · 354 clinicians
Hospital affiliation
- Greater Baltimore Medical CenterBaltimore, MD
Industry payments (Open Payments)
- 2025$867.76 · 40 payments from 11 companies
- 2024$509.80 · 25 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $322.25 | 16 |
| Madrigal Pharmaceuticals | $164.58 | 6 |
| Pfizer Inc. | $85.22 | 5 |
| Ipsen Biopharmaceuticals, Inc | $56.10 | 2 |
| Ethicon US, LLC | $42.71 | 1 |
What the 2025 payments were for
- Food and Beverage$867.76 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 gastroenterologists in Towson · All gastroenterologists in Maryland