Darren Machak, DO
NPI 1447487996ActiveIndividual· Family Medicine· Butler, PA
Family Medicine (DO) in Butler, Pennsylvania, trained at Philadelphia College of Osteopathic Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $1,449,385 for 13,895 claims, against $41,817 paid for services in 2024. Novo Nordisk Inc was the largest of 6 companies reporting payments in 2025, $393.56 in all, mostly food and beverage.
Overview
| NPI | 1447487996 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jun 11, 2009 |
| Last updated in NPPES | Jun 4, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | OS015629 | 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 - Family Practice (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 170 |
|---|---|
| Services billed | 471 across 19 procedure codes |
| Paid by Medicare | $41,817 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,895 · 25,551 30-day fills |
|---|---|
| Patients | 805 |
| Total drug cost | $1,449,385 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Philadelphia College of Osteopathic Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Butler Medical ProvidersButler, PA · 360 clinicians
Hospital affiliation
Other facilities
- Concordia Visiting NursesHome health agency · Cabot, PA
Industry payments (Open Payments)
- 2025$393.56 · 21 payments from 6 companies
- 2024$165.65 · 9 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $152.84 | 8 |
| Pfizer Inc. | $78.67 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $71.41 | 4 |
| Amgen Inc. | $35.98 | 2 |
| Lilly USA, LLC | $34.84 | 2 |
What the 2025 payments were for
- Food and Beverage$373.34 · 20 payments
- Education$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 44 family medicine physicians in Butler · All family medicine physicians in Pennsylvania