Marion C. Kowalewski, M.D.
NPI 1538126461ActiveIndividual· Internal Medicine· Baltimore, MD
Internal Medicine (M.D.) in Baltimore, Maryland, trained at University of Maryland School of Medicine (class of 1975). Their prescriptions cost Medicare Part D more than their services did: $1,298,824 for 15,749 claims, against $243,541 paid for services in 2024. Novo Nordisk Inc reported $61.75 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1538126461 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 26, 2006 |
| Last updated in NPPES | Dec 14, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0021022 | MD |
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 (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 926 |
|---|---|
| Services billed | 5,338 across 34 procedure codes |
| Paid by Medicare | $243,541 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,749 · 36,728 30-day fills |
|---|---|
| Patients | 1,055 |
| Total drug cost | $1,298,824 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 1975 |
| Medicare specialty | Internal Medicine |
Medical groups
- Agape Physical Therapy and Sports Rehabilitation LPForest Hill, MD · 678 clinicians
- Maryland Family Care IncReisterstown, MD · 157 clinicians
Hospital affiliations
- Greater Baltimore Medical CenterBaltimore, MD
- Johns Hopkins Bayview Medical CenterBaltimore, MD
- Mercy Medical Center IncBaltimore, MD
- Umd Upper Chesapeake Medical CenterBel Air, MD
- University of MD St Joseph Medical CenterTowson, MD
Other facilities
- Bayada Home Health Care, Inc.Home health agency · Towson, MD
- Home CallHome health agency · Westminster, MD
- Medstar Health Home CareHome health agency · Baltimore, MD
- Stella Maris, Inc.Home health agency · Timonium, MD
- The Johns Hopkins Home Health Services, IncHome health agency · Baltimore, MD
Industry payments (Open Payments)
- 2025$61.75 · 4 payments from 1 company
- 2024$91.12 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $61.75 | 4 |
What the 2025 payments were for
- Food and Beverage$61.75 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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