Selwyn E. Mahon, M.D.
NPI 1992816169ActiveIndividual· Emergency Medicine· Tamuning, GU
Emergency Medicine (M.D.) in Tamuning, Guam, trained at Howard University College of Medicine (class of 1990). 166 Medicare patients in 2024, $17,344 paid; nearly all of their 86 Part D prescriptions were generic (95%).
Overview
| NPI | 1992816169 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Aug 13, 2026 |
| Certified by provider | Aug 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 1119 | VI |
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 - Emergency Medicine (DC); Practitioner - Emergency Medicine (MA); Practitioner - Emergency Medicine (MD); Practitioner - Emergency Medicine (RI); Practitioner - Emergency Medicine (VI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 166 |
|---|---|
| Services billed | 183 across 13 procedure codes |
| Paid by Medicare | $17,344 |
Part D prescriptions in 2024
| Prescriptions (claims) | 86 · 86 30-day fills |
|---|---|
| Patients | 60 |
| Total drug cost | $953.34 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Howard University College of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Emergency Medicine |
Medical group
- East Harbor Partners PCThornton, CO · 13 clinicians
Hospital affiliation
- University of MD Shore Medical Ctr at ChestertownChestertown, 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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