Thomas Guarnieri, M.D.
NPI 1275536591ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Towson, MD
Internal Medicine, Clinical Cardiac Electrophysiology (M.D.) in Towson, Maryland, licensed in MD, with an NPI issued in May 2005. Their prescriptions cost Medicare Part D more than their services did: $998,217 for 3,018 claims, against $86,767 paid for services in 2024.
Overview
| NPI | 1275536591 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 31, 2005 |
| Last updated in NPPES | Aug 23, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | D0018334 | MD |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | D0018334 | MD |
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) (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 672 |
|---|---|
| Services billed | 1,239 across 24 procedure codes |
| Paid by Medicare | $86,767 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,018 · 7,921 30-day fills |
|---|---|
| Patients | 595 |
| Total drug cost | $998,217 |
| Generic share | 75% of claims |
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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