Gary M. Katzman, MD
NPI 1003839218ActiveIndividual· Internal Medicine, Cardiovascular Disease· Providence, RI
Internal Medicine, Cardiovascular Disease (MD) in Providence, Rhode Island, trained at Wayne State University School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $441,328 for 824 claims, against $80,035 paid for services in 2024. Heartflow, Inc. was the largest of 3 companies reporting payments in 2025, $50.94 in all, mostly food and beverage.
Overview
| NPI | 1003839218 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Nov 12, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | MD10572 | RI |
| Internal Medicine, Interventional Cardiology | 207RI0011X | MD10572 | RI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 1,489 |
|---|---|
| Services billed | 2,852 across 50 procedure codes |
| Paid by Medicare | $80,035 |
Part D prescriptions in 2024
| Prescriptions (claims) | 824 · 1,836 30-day fills |
|---|---|
| Patients | 205 |
| Total drug cost | $441,328 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Mercy Health Westshore Cardiology ServicesMuskegon, MI · 37 clinicians
Hospital affiliations
- Corewell Health Ludington HospitalLudington, MI
- Mercy Health Lakeshore CampusShelby, MI
- Spectrum HealthGrand Rapids, MI
- Trinity Health Grand Haven HospitalGrand Haven, MI
- Trinity Health Muskegon HospitalMuskegon, MI
Industry payments (Open Payments)
- 2025$50.94 · 5 payments from 3 companies
- 2024$35.66 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Heartflow, Inc. | $19.86 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $16.46 | 3 |
| Novartis Pharmaceuticals Corporation | $14.62 | 1 |
What the 2025 payments were for
- Food and Beverage$44.18 · 4 payments
- Education$6.76 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Cardiovascular Disease providers in Rhode Island →