Vasilios Kalonaros, M.D.
NPI 1376501296ActiveIndividual· Internal Medicine· Smithtown, NY
Internal Medicine (M.D.) in Smithtown, New York, licensed in NY, with an NPI issued in May 2006. Their prescriptions cost Medicare Part D more than their services did: $574,364 for 4,758 claims, against $71,341 paid for services in 2024. Lists Suny/Stony Brook University Hospital as a hospital affiliation.
Overview
| NPI | 1376501296 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 2, 2006 |
| Last updated in NPPES | Jan 17, 2023 |
| Certified by provider | Jan 17, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 183593 | NY |
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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 232 |
|---|---|
| Services billed | 1,072 across 17 procedure codes |
| Paid by Medicare | $71,341 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,758 · 10,273 30-day fills |
|---|---|
| Patients | 262 |
| Total drug cost | $574,364 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Internal Medicine |
Hospital affiliation
- Suny/Stony Brook University HospitalStony Brook, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 60 internal medicine physicians in Smithtown · All internal medicine physicians in New York