Mark Mahan, DO
NPI 1841730496ActiveIndividual· Surgery· Danville, PA
Surgery (DO) in Danville, Pennsylvania, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 2017). 113 Medicare patients in 2024, $44,361 paid; nearly all of their 123 Part D prescriptions were generic (92%). W. L. Gore & Associates, Inc. reported $149.93 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1841730496 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 1, 2017 |
| Last updated in NPPES | Jul 27, 2022 |
| Certified by provider | Jul 27, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | OS022147 | PA |
| Surgery | 208600000X | OT017673 | PA |
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 - General Surgery (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 113 |
|---|---|
| Services billed | 223 across 47 procedure codes |
| Paid by Medicare | $44,361 |
Part D prescriptions in 2024
| Prescriptions (claims) | 123 · 153 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $4,340 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | General Surgery |
Medical group
- Geisinger ClinicDanville, PA · 3,467 clinicians
Hospital affiliations
- Geisinger Wyoming Valley Medical CenterWilkes Barre, PA
- Geisinger-Community Medical CenterScranton, PA
Industry payments (Open Payments)
- 2025$149.93 · 1 payment from 1 company
- 2024$1,151 · 13 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| W. L. Gore & Associates, Inc. | $149.93 | 1 |
What the 2025 payments were for
- Food and Beverage$149.93 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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