Mark K. Perezous, MD
NPI 1992706253ActiveIndividual· Orthopaedic Surgery· Lancaster, PA
Orthopaedic Surgery (MD) in Lancaster, Pennsylvania, trained at Temple University School of Medicine (class of 1989). Mostly services rather than prescriptions: Medicare paid $75,519 for 325 patients in 2024, with only 40 Part D claims. Electronic Waveform Lab, Inc. reported $200.60 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1992706253 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 9, 2005 |
| Last updated in NPPES | Jan 15, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD044689L | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 325 |
|---|---|
| Services billed | 3,395 across 46 procedure codes |
| Paid by Medicare | $75,519 |
Part D prescriptions in 2024
| Prescriptions (claims) | 40 · 40 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $152.91 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Temple University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Lancaster Orthopedic Group, Inc.Mount Joy, PA · 74 clinicians
Hospital affiliations
- Lancaster General HospitalLancaster, PA
- Penn State Health St. JosephReading, PA
- Wellspan Ephrata Community HospitalEphrata, PA
Industry payments (Open Payments)
- 2025$200.60 · 3 payments from 1 company
- 2024$824.46 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Electronic Waveform Lab, Inc. | $200.60 | 3 |
What the 2025 payments were for
- Food and Beverage$200.60 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Orthopaedic Surgery providers in Lancaster
- 1346287224
- 1174402937
- 1427388248
- 1508672700
- 1164137287
- 1568485571
- 1598740508
- 1457406571
- 1679614192
- 1609835933
- 1952348484
- 1992225197