Geoffrey T. Gibney, MD
NPI 1164696878ActiveIndividual· Internal Medicine· Washington, DC
Internal Medicine (MD) in Washington, District of Columbia, trained at University of Connecticut School of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $469,230 for 106 claims, against $46,493 paid for services in 2024. Immunocore Limited was the largest of 12 companies reporting payments in 2025, $71,475 in all, mostly honoraria.
Overview
| NPI | 1164696878 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 15, 2008 |
| Last updated in NPPES | May 21, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD042897 | DC |
| Internal Medicine | 207R00000X | 226152 | MA |
| Internal Medicine | 207R00000X | 226152 | CT |
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) | Enrolled Practitioner - Medical Oncology (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 448 across 10 procedure codes |
| Paid by Medicare | $46,493 |
Part D prescriptions in 2024
| Prescriptions (claims) | 106 · 125 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $469,230 |
| Generic share | 61% of claims |
Education and affiliations
| Medical school | University of Connecticut School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
Hospital affiliations
- Medstar Georgetown University HospitalWashington, DC
- Medstar Saint Mary's HospitalLeonardtown, MD
- Medstar Washington Hospital CenterWashington, DC
Industry payments (Open Payments)
- 2025$71,475 · 120 payments from 12 companies
- 2024$19,219 · 26 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Immunocore Limited | $67,299 | 103 |
| Iovance Biotherapeutics, Inc. | $3,560 | 3 |
| Caris Mpi, Inc. | $190.97 | 1 |
| Merck Sharp & Dohme LLC | $111.27 | 1 |
| Novartis Pharmaceuticals Corporation | $79.17 | 3 |
What the 2025 payments were for
- Honoraria$53,000 · 13 payments
- Travel and Lodging$12,455 · 57 payments
- Consulting Fee$3,425 · 1 payment
- Food and Beverage$2,595 · 49 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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