Kathleen M. Nilles, MD
NPI 1396903928ActiveIndividual· Internal Medicine, Transplant Hepatology· Washington, DC
Internal Medicine, Transplant Hepatology (MD) in Washington, District of Columbia, trained at University of Pittsburgh School of Medicine (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $143,173 for 379 claims, against $44,070 paid for services in 2024.
Overview
| NPI | 1396903928 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 30, 2008 |
| Last updated in NPPES | Sep 4, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Transplant Hepatology Primary | 207RT0003X | MD047513 | DC |
| Internal Medicine | 207R00000X | 036128000 | IL |
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 - Internal Medicine (DC); Practitioner - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 184 |
|---|---|
| Services billed | 369 across 23 procedure codes |
| Paid by Medicare | $44,070 |
Part D prescriptions in 2024
| Prescriptions (claims) | 379 · 742 30-day fills |
|---|---|
| Patients | 71 |
| Total drug cost | $143,173 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Pittsburgh School of Medicine |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
Hospital affiliation
- Medstar Georgetown University HospitalWashington, DC
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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