Eva Karacsonyi, MD
NPI 1013983691ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Springfield, MA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Mass General Brigham Medical Group Western Massachusetts Inc, practicing in Springfield, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $532,910 for 1,366 claims, against $107,082 paid for services in 2024. Insulet Corporation was the largest of 2 companies reporting payments in 2025, $134.81 in all, mostly food and beverage. Lists Baystate Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1013983691 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 24, 2006 |
| Last updated in NPPES | Feb 24, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 152090 | MA |
| Internal Medicine | 207R00000X | 152090 | MA |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 047104 | CT |
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 - Endocrinology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 293 |
|---|---|
| Services billed | 5,790 across 16 procedure codes |
| Paid by Medicare | $107,082 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,366 · 3,176 30-day fills |
|---|---|
| Patients | 285 |
| Total drug cost | $532,910 |
| Generic share | 48% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA · 291 clinicians
Hospital affiliations
- Baystate Medical CenterSpringfield, MA
- Baystate Noble HospitalWestfield, MA
- Berkshire Medical CenterPittsfield, MA
- Cooley Dickinson Hospital Inc,theNorthampton, MA
- Mercy Medical CtrSpringfield, MA
Industry payments (Open Payments)
- 2025$134.81 · 4 payments from 2 companies
- 2024$77.76 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insulet Corporation | $81.16 | 1 |
| E.R. Squibb & Sons, L.L.C. | $53.65 | 3 |
What the 2025 payments were for
- Food and Beverage$134.81 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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