Karen K. Ballen, MD
NPI 1821089558ActiveIndividual· Internal Medicine, Hematology· Falls Church, VA
Internal Medicine, Hematology (MD) with University of Virginia Physicians Group and 1 other group, practicing in Falls Church, Virginia. Their prescriptions cost Medicare Part D more than their services did: $799,053 for 529 claims, against $37,754 paid for services in 2024. National Marrow Donor Program reported $405.09 in payments in 2025, mostly food and beverage. Lists Centra Health - Lynchburg Gen Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1821089558 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 2, 2005 |
| Last updated in NPPES | Aug 8, 2023 |
| Certified by provider | Aug 8, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology Primary | 207RH0000X | 0101261336 | VA |
| Internal Medicine | 207R00000X | 70975 | MA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 70975 | MA |
| Internal Medicine, Hepatology | 207RI0008X | 0101261336 | VA |
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 - Hematology/Oncology (DC); Practitioner - Hematopoietic Cell Transplantation and Cellular Therapy (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 135 |
|---|---|
| Services billed | 638 across 22 procedure codes |
| Paid by Medicare | $37,754 |
Part D prescriptions in 2024
| Prescriptions (claims) | 529 · 697 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $799,053 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Hematopoietic Cell Transplantation And Cellular Therapy |
| Secondary specialties | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- University of Virginia Physicians GroupCharlottesville, VA · 1,717 clinicians
- Centra Medical Group LLCLynchburg, VA · 724 clinicians
Hospital affiliations
- Centra Health - Lynchburg Gen HospitalLynchburg, VA
- Sentara Rmh Medical CenterHarrisonburg, VA
- University of Virginia Medical CenterCharlottesville, VA
- Uva Health Prince William Medical CenterManassas, VA
Industry payments (Open Payments)
- 2025$405.09 · 4 payments from 1 company
- 2024$1,454 · 11 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| National Marrow Donor Program | $405.09 | 4 |
What the 2025 payments were for
- Food and Beverage$349.80 · 3 payments
- Travel and Lodging$55.29 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology providers in Falls Church
- 1043500150
- 1295153005