Melissa Ann Szczembara, PA
NPI 1942481700ActiveIndividual· Physician Assistant· Grand Blanc, MI
Physician Assistant (PA) with Wilfredo Rivera, M.D., P.C., practicing in Grand Blanc, Michigan. Their prescriptions cost Medicare Part D more than their services did: $308,560 for 1,287 claims, against $7,642 paid for services in 2024. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 4 companies reporting payments in 2025, $424.01 in all, mostly food and beverage. Lists McLaren Flint as a hospital affiliation.
Overview
| NPI | 1942481700 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Nov 21, 2007 |
| Last updated in NPPES | Jul 11, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 5601003995 | MI |
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 (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 146 |
|---|---|
| Services billed | 224 across 6 procedure codes |
| Paid by Medicare | $7,642 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,287 · 3,542 30-day fills |
|---|---|
| Patients | 398 |
| Total drug cost | $308,560 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Wilfredo Rivera, M.D., P.C.Flint, MI · 5 clinicians
Hospital affiliation
- McLaren FlintFlint, MI
Industry payments (Open Payments)
- 2025$424.01 · 44 payments from 4 companies
- 2024$460.85 · 31 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $340.50 | 40 |
| Scpharmaceuticals Inc. | $39.37 | 2 |
| Novartis Pharmaceuticals Corporation | $27.91 | 1 |
| Amgen Inc. | $16.23 | 1 |
What the 2025 payments were for
- Food and Beverage$424.01 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 physician assistants in Grand Blanc · All physician assistants in Michigan