Sean Byrnes, MD
NPI 1154818193ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Springfield, MA
Internal Medicine, Clinical Cardiac Electrophysiology (MD) with Hampden and Franklin County Cardiovascular Associates PC, practicing in Springfield, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $45,547 for 264 claims, against $8,199 paid for services in 2024. Boston Scientific Corporation was the largest of 9 companies reporting payments in 2025, $19,092 in all, mostly grants. Lists Baystate Medical Center as a hospital affiliation.
Overview
| NPI | 1154818193 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 16, 2018 |
| Last updated in NPPES | Sep 10, 2026 |
| Certified by provider | Sep 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | 1026783 | MA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 1026783 | MA |
| Internal Medicine | 207R00000X | 1026783 | MA |
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) (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 84 |
|---|---|
| Services billed | 84 across 3 procedure codes |
| Paid by Medicare | $8,199 |
Part D prescriptions in 2024
| Prescriptions (claims) | 264 · 438 30-day fills |
|---|---|
| Patients | 66 |
| Total drug cost | $45,547 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Hampden and Franklin County Cardiovascular Associates PCGreenfield, MA · 20 clinicians
Hospital affiliation
- Baystate Medical CenterSpringfield, MA
Industry payments (Open Payments)
- 2025$19,092 · 149 payments from 9 companies
- 2024$16,736 · 55 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $7,841 | 55 |
| Abbott Laboratories | $5,557 | 32 |
| Medtronic, Inc. | $3,571 | 42 |
| Biosense Webster, Inc. | $1,972 | 15 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $58.26 | 1 |
What the 2025 payments were for
- Grant$9,091 · 3 payments
- Travel and Lodging$4,839 · 27 payments
- Food and Beverage$4,058 · 114 payments
- Education$1,104 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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