Mark Pfaff
NPI 1194728469ActiveIndividual· Orthopaedic Surgery· Elkton, MD
Orthopaedic Surgery in Elkton, Maryland, trained at Philadelphia College of Osteopathic Medicine (class of 1998). 489 Medicare patients in 2024, $211,834 paid; nearly all of their 530 Part D prescriptions were generic (95%). Vertex Pharmaceuticals Incorporated reported $19.14 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1194728469 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | May 31, 2005 |
| Last updated in NPPES | Jan 12, 2026 |
| Certified by provider | Jan 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | H0-063647 | 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 - Orthopedic Surgery (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 489 |
|---|---|
| Services billed | 3,459 across 57 procedure codes |
| Paid by Medicare | $211,834 |
Part D prescriptions in 2024
| Prescriptions (claims) | 530 · 941 30-day fills |
|---|---|
| Patients | 254 |
| Total drug cost | $11,846 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Orthopedic Surgery |
Hospital affiliations
- Christiana HospitalNewark, DE
- Union Hospital of Cecil CountyElkton, MD
Industry payments (Open Payments)
- 2025$19.14 · 1 payment from 1 company
- 2024$177.20 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $19.14 | 1 |
What the 2025 payments were for
- Food and Beverage$19.14 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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