Garrett Patrick Diltz, MD
NPI 1578120176ActiveIndividual· Internal Medicine, Hematology & Oncology· Columbus, OH
Internal Medicine, Hematology & Oncology (MD) in Columbus, Ohio, trained at Ohio State University College of Medicine (class of 2019). Part D covered 46 prescriptions written in 2024, 74% of them generic. Janssen Biotech, Inc. was the largest of 39 companies reporting payments in 2025, $2,274 in all, mostly food and beverage.
Overview
| NPI | 1578120176 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 20, 2019 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 35.155894 | OH |
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 (OH) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 46 · 60 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $64,693 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | Ohio State University College of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Hospital affiliations
- Adventist Healthcare Shady Grove Medical CenterRockville, MD
- Holy Cross Germantown HospitalGermantown, MD
- Suburban HospitalBethesda, MD
Industry payments (Open Payments)
- 2025$2,274 · 80 payments from 39 companies
- 2024$193.42 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $367.30 | 10 |
| Novartis Pharmaceuticals Corporation | $186.59 | 7 |
| Merck Sharp & Dohme LLC | $160.61 | 6 |
| Daiichi Sankyo Inc. | $105.43 | 4 |
| Pfizer Inc. | $95.28 | 3 |
What the 2025 payments were for
- Food and Beverage$2,109 · 78 payments
- Education$164.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 61 hematologist-oncologists in Columbus · All hematologist-oncologists in Ohio