Mark Wayne Knestrick, MD
NPI 1447576673ActiveIndividual· Internal Medicine, Hematology & Oncology· Washington, PA
Internal Medicine, Hematology & Oncology (MD) in Washington, Pennsylvania, trained at West Virginia University School of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $4,562,630 for 1,512 claims, against $61,311 paid for services in 2024. Adaptive Biotechnologies Corporation reported $19.49 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1447576673 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 13, 2010 |
| Last updated in NPPES | Sep 7, 2023 |
| Certified by provider | Sep 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD474898 | PA |
| Internal Medicine, Medical Oncology | 207RX0202X | 0101260907 | VA |
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 - Medical Oncology (OH); Practitioner - Medical Oncology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 338 |
|---|---|
| Services billed | 1,003 across 12 procedure codes |
| Paid by Medicare | $61,311 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,512 · 2,004 30-day fills |
|---|---|
| Patients | 280 |
| Total drug cost | $4,562,630 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | West Virginia University School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology |
Medical group
- Oncology Hematology Association IncPittsburgh, PA · 202 clinicians
Hospital affiliations
- Magee Womens Hospital of Upmc Health SystemPittsburgh, PA
- Trinity Medical Ctr East &trinity Medical Ctr WestSteubenville, OH
- Upmc GreeneWaynesburg, PA
- Upmc Presbyterian ShadysidePittsburgh, PA
- Washington Hospital, theWashington, PA
Industry payments (Open Payments)
- 2025$19.49 · 1 payment from 1 company
- 2024$111.96 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Adaptive Biotechnologies Corporation | $19.49 | 1 |
What the 2025 payments were for
- Food and Beverage$19.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology & Oncology providers in Washington
- 1013952878
- 1942271648
- 1679544019
- 1790759025
All Internal Medicine, Hematology & Oncology providers in Pennsylvania →