Stephen Andrew Mezzafonte, M.D.
NPI 1649443649ActiveIndividual· Internal Medicine, Interventional Cardiology· Roslyn, NY
Internal Medicine, Interventional Cardiology (M.D.) in Roslyn, New York, trained at New York University School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $1,890,146 for 10,248 claims, against $628,164 paid for services in 2024. Novo Nordisk Inc was the largest of 9 companies reporting payments in 2025, $342.92 in all, mostly food and beverage.
Overview
| NPI | 1649443649 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 10, 2008 |
| Last updated in NPPES | Apr 13, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 230538 | NY |
| Internal Medicine | 207R00000X | 230538 | NY |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 230538 | NY |
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 - Interventional Cardiology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,507 |
|---|---|
| Services billed | 7,467 across 51 procedure codes |
| Paid by Medicare | $628,164 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,248 · 27,743 30-day fills |
|---|---|
| Patients | 1,259 |
| Total drug cost | $1,890,146 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Interventional Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology), Internal Medicine |
Medical group
- Chs Physician Partners PCRoslyn, NY · 743 clinicians
Hospital affiliations
- Chsli St Joseph HospitalBethpage, NY
- Good Samaritan Hospital Medical CenterWest Islip, NY
- Mercy Medical CenterRockville Centre, NY
- St Catherine of Siena HospitalSmithtown, NY
- St Francis Hospital - the Heart CenterRoslyn, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
Industry payments (Open Payments)
- 2025$342.92 · 16 payments from 9 companies
- 2024$900.31 · 27 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $76.48 | 3 |
| E.R. Squibb & Sons, L.L.C. | $76.29 | 4 |
| Abbott Laboratories | $41.48 | 2 |
| Amgen Inc. | $37.19 | 2 |
| Tactile Systems Technology Inc | $30.99 | 1 |
What the 2025 payments were for
- Food and Beverage$342.92 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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