Perry Earl Zack, DO
NPI 1568431559ActiveIndividual· Family Medicine· Merrillville, IN
Family Medicine (DO) in Merrillville, Indiana, trained at Kansas City University of Med & Biosciences, College of Osteo Med (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $510,699 for 3,627 claims, against $19,294 paid for services in 2024. Kowa Pharmaceuticals America, Inc. was the largest of 13 companies reporting payments in 2025, $563.88 in all, mostly food and beverage.
Overview
| NPI | 1568431559 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | Jan 24, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 02001537 | IN |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 105 |
|---|---|
| Services billed | 443 across 29 procedure codes |
| Paid by Medicare | $19,294 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,627 · 7,779 30-day fills |
|---|---|
| Patients | 284 |
| Total drug cost | $510,699 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Kansas City University of Med & Biosciences, College of Osteo Med |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Family Practice |
Hospital affiliations
- Methodist Hospitals IncGary, IN
- St Mary Medical Center IncHobart, IN
Industry payments (Open Payments)
- 2025$563.88 · 22 payments from 13 companies
- 2024$1,042 · 46 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Kowa Pharmaceuticals America, Inc. | $139.80 | 3 |
| Amgen Inc. | $84.96 | 4 |
| Exact Sciences Corporation | $60.75 | 3 |
| Lilly USA, LLC | $45.00 | 1 |
| Abiomed | $44.35 | 1 |
What the 2025 payments were for
- Food and Beverage$518.88 · 21 payments
- Education$45.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 55 family medicine physicians in Merrillville · All family medicine physicians in Indiana