Michael Colin Mahon, M.D.
NPI 1447784723ActiveIndividual· Hospitalist· Towson, MD
Hospitalist (M.D.) with University of Maryland St Joseph Medical Group LLC, practicing in Towson, Maryland. In 2024 Medicare paid $139,593 for 600 patients, and Part D covered 896 of their prescriptions, 88% of them generic. Lists Greater Baltimore Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1447784723 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 13, 2017 |
| Last updated in NPPES | Apr 5, 2021 |
| Certified by provider | Apr 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | D89542 | MD |
| Internal Medicine | 207R00000X | D89542 | 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 | 600 |
|---|---|
| Services billed | 1,567 across 14 procedure codes |
| Paid by Medicare | $139,593 |
Part D prescriptions in 2024
| Prescriptions (claims) | 896 · 1,062 30-day fills |
|---|---|
| Patients | 302 |
| Total drug cost | $56,700 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
Medical group
- University of Maryland St Joseph Medical Group LLCTowson, MD · 287 clinicians
Hospital affiliations
- Greater Baltimore Medical CenterBaltimore, MD
- University of Maryland Medical CenterBaltimore, MD
- University of MD St Joseph Medical CenterTowson, MD
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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