Gary R. Gize, MD
NPI 1255333167ActiveIndividual· Internal Medicine, Hematology & Oncology· Fort Wayne, IN
Internal Medicine, Hematology & Oncology (MD) in Fort Wayne, Indiana, trained at Indiana University School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $3,167,882 for 1,595 claims, against $1,677,382 paid for services in 2024. Caris Mpi, Inc. was the largest of 24 companies reporting payments in 2025, $2,024 in all, mostly food and beverage.
Overview
| NPI | 1255333167 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 10, 2005 |
| Last updated in NPPES | Oct 7, 2022 |
| Certified by provider | Oct 7, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 01043454A | 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 - Hematology/Oncology (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 527 |
|---|---|
| Services billed | 108,586 across 114 procedure codes |
| Paid by Medicare | $1,677,382 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,595 · 2,249 30-day fills |
|---|---|
| Patients | 249 |
| Total drug cost | $3,167,882 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Hematology/Oncology |
Medical group
- American Oncology Partners PAFort Wayne, IN · 391 clinicians
Hospital affiliations
- Adams Memorial HospitalDecatur, IN
- Cameron HealthAngola, IN
- Lutheran Hospital of IndianaFort Wayne, IN
- Parkview Dekalb HospitalAuburn, IN
- Parkview Regional Medical CenterFort Wayne, IN
Industry payments (Open Payments)
- 2025$2,024 · 47 payments from 24 companies
- 2024$968.49 · 49 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Caris Mpi, Inc. | $1,023 | 2 |
| Janssen Biotech, Inc. | $263.11 | 6 |
| Merck Sharp & Dohme LLC | $94.73 | 4 |
| E.R. Squibb & Sons, L.L.C. | $73.61 | 4 |
| Genentech USA, Inc. | $63.26 | 3 |
What the 2025 payments were for
- Food and Beverage$1,079 · 44 payments
- Consulting Fee$900.00 · 1 payment
- Education$45.70 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 hematologist-oncologists in Fort Wayne · All hematologist-oncologists in Indiana