Thomas Frederick Withuhn, M.D., M.S.
NPI 1821264425ActiveIndividual· Internal Medicine· Owings Mills, MD
Internal Medicine (M.D., M.S.) in Owings Mills, Maryland, trained at University of Southern California Keck School of Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $508,452 for 5,134 claims, against $105,125 paid for services in 2024. Abbvie Inc. was the largest of 27 companies reporting payments in 2025, $1,897 in all, mostly food and beverage.
Overview
| NPI | 1821264425 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., M.S. |
| Sole proprietor | No |
| NPI issued | May 2, 2008 |
| Last updated in NPPES | Mar 9, 2022 |
| Certified by provider | Mar 9, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D80017 | MD |
| Internal Medicine | 207R00000X | 23614 | WV |
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 - Internal Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 402 |
|---|---|
| Services billed | 1,876 across 46 procedure codes |
| Paid by Medicare | $105,125 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,134 · 11,537 30-day fills |
|---|---|
| Patients | 399 |
| Total drug cost | $508,452 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Lifebridge Community Physicians IncOwings Mills, MD · 183 clinicians
Other facilities
- Home CallHome health agency · Westminster, MD
- Homecare Maryland, LLCHome health agency · Owings Mills, MD
Industry payments (Open Payments)
- 2025$1,897 · 104 payments from 27 companies
- 2024$2,442 · 132 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $281.00 | 20 |
| Amgen Inc. | $249.06 | 16 |
| Novo Nordisk Inc | $231.79 | 12 |
| Pfizer Inc. | $219.40 | 11 |
| Lundbeck LLC | $152.36 | 8 |
What the 2025 payments were for
- Food and Beverage$1,897 · 104 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 39 internal medicine physicians in Owings Mills · All internal medicine physicians in Maryland