Michael Patrick Stempek, PA-C, MMSC
NPI 1518006873ActiveIndividual· Physician Assistant· Woburn, MA
Physician Assistant (PA-C, MMSC) in Woburn, Massachusetts, trained at Emory University School of Medicine (class of 2006). 23 Medicare patients in 2024, $3,177 paid; all of their 282 Part D prescriptions were generic. Pacira Pharmaceuticals Incorporated was the largest of 4 companies reporting payments in 2025, $110.90 in all, mostly food and beverage.
Overview
| NPI | 1518006873 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C, MMSC |
| Sole proprietor | No |
| NPI issued | Feb 5, 2007 |
| Last updated in NPPES | Jan 8, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA4497 | MA |
| Physician Assistant, Surgical | 363AS0400X | 4992 | GA |
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 - Physician Assistant (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 28 across 10 procedure codes |
| Paid by Medicare | $3,177 |
Part D prescriptions in 2024
| Prescriptions (claims) | 282 · 282 30-day fills |
|---|---|
| Patients | 214 |
| Total drug cost | $1,544 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Emory University School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Physician Assistant |
Medical group
- Excel Orthopaedic SpecialistsWoburn, MA · 47 clinicians
Hospital affiliation
- Winchester HospitalWinchester, MA
Industry payments (Open Payments)
- 2025$110.90 · 6 payments from 4 companies
- 2024$13.90 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pacira Pharmaceuticals Incorporated | $43.05 | 2 |
| Ferring Pharmaceuticals Inc. | $27.80 | 2 |
| Bioventus LLC | $20.25 | 1 |
| Boston Scientific Corporation | $19.80 | 1 |
What the 2025 payments were for
- Food and Beverage$110.90 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 physician assistants in Woburn · All physician assistants in Massachusetts