Paul Martin Zack, M.D.
NPI 1982639704ActiveIndividual· Internal Medicine, Cardiovascular Disease· Okemos, MI
Internal Medicine, Cardiovascular Disease (M.D.) in Okemos, Michigan, trained at Wayne State University School of Medicine (class of 1978). Their prescriptions cost Medicare Part D more than their services did: $1,133,192 for 5,676 claims, against $36,976 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 5 companies reporting payments in 2025, $545.56 in all, mostly food and beverage.
Overview
| NPI | 1982639704 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | May 21, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 430146829 | 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 - Cardiovascular Disease (Cardiology) (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 305 |
|---|---|
| Services billed | 1,094 across 27 procedure codes |
| Paid by Medicare | $36,976 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,676 · 14,575 30-day fills |
|---|---|
| Patients | 654 |
| Total drug cost | $1,133,192 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- McLaren Greater LansingLansing, MI · 99 clinicians
Hospital affiliations
- Edward W Sparrow HospitalLansing, MI
- McLaren Greater LansingLansing, MI
- Sparrow Ionia HospitalIonia, MI
Industry payments (Open Payments)
- 2025$545.56 · 8 payments from 5 companies
- 2024$522.06 · 8 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $148.74 | 2 |
| Baxter Healthcare | $106.17 | 3 |
| Alnylam Pharmaceuticals Inc. | $104.26 | 1 |
| Boston Scientific Corporation | $95.28 | 1 |
| E.R. Squibb & Sons, L.L.C. | $91.11 | 1 |
What the 2025 payments were for
- Food and Beverage$545.56 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Cardiovascular Disease providers in Okemos
- 1801845839
- 1316240567
- 1336491232
- 1164499307
- 1376612846
- 1467521930
- 1205100070
- 1295949030
- 1851365407
- 1689649527
All Internal Medicine, Cardiovascular Disease providers in Michigan →