William Brian Karkowsky, M.D.
NPI 1053675074ActiveIndividual· Internal Medicine, Critical Care Medicine· Baltimore, MD
Internal Medicine, Critical Care Medicine (M.D.) in Baltimore, Maryland, trained at University of Maryland School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $414,579 for 970 claims, against $79,330 paid for services in 2024. Olympus Corporation of the Americas was the largest of 4 companies reporting payments in 2025, $468.68 in all, mostly travel and lodging.
Overview
| NPI | 1053675074 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 25, 2012 |
| Last updated in NPPES | Jan 24, 2020 |
| Certified by provider | Jan 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | D0084609 | MD |
| Internal Medicine, Pulmonary Disease | 207RP1001X | D0084609 | 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 - Critical Care (Intensivists) (DC); Practitioner - Critical Care (Intensivists) (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 398 |
|---|---|
| Services billed | 836 across 32 procedure codes |
| Paid by Medicare | $79,330 |
Part D prescriptions in 2024
| Prescriptions (claims) | 970 · 1,408 30-day fills |
|---|---|
| Patients | 162 |
| Total drug cost | $414,579 |
| Generic share | 38% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical groups
- Greater Baltimore Medical CenterTowson, MD · 354 clinicians
- Lifebridge Community Physicians IncOwings Mills, MD · 183 clinicians
Hospital affiliation
- Greater Baltimore Medical CenterBaltimore, MD
Industry payments (Open Payments)
- 2025$468.68 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus Corporation of the Americas | $389.44 | 4 |
| Astrazeneca Pharmaceuticals LP | $34.86 | 1 |
| Glaxosmithkline, LLC. | $23.95 | 1 |
| Insmed, Inc. | $20.43 | 1 |
What the 2025 payments were for
- Travel and Lodging$370.96 · 2 payments
- Food and Beverage$97.72 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other critical care physicians in Baltimore
- 1104210368
- 1174748743
- 1205278843
- 1245575265
- 1356495980
- 1538450952
- 1639596711
- 1700011558
- 1700149440
- 1710372016
- 1811159858
- 1821011370
All 94 critical care physicians in Baltimore · All critical care physicians in Maryland