Megan A. Callahan, M.D.
NPI 1780642611ActiveIndividual· Psychiatry & Neurology, Neurology· Attleboro, MA
Psychiatry & Neurology, Neurology (M.D.) in Attleboro, Massachusetts, trained at Boston University School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $891,754 for 2,783 claims, against $87,897 paid for services in 2024. Abbvie Inc. was the largest of 32 companies reporting payments in 2025, $4,899 in all, mostly food and beverage.
Overview
| NPI | 1780642611 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 2, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 77694 | MA |
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 - Neurology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 380 |
|---|---|
| Services billed | 863 across 22 procedure codes |
| Paid by Medicare | $87,897 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,783 · 5,186 30-day fills |
|---|---|
| Patients | 383 |
| Total drug cost | $891,754 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Boston University School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Neurology |
Medical group
- Neurology Partners PCAttleboro, MA · 3 clinicians
Hospital affiliation
- Sturdy Memorial HospitalAttleboro, MA
Industry payments (Open Payments)
- 2025$4,899 · 199 payments from 32 companies
- 2024$4,762 · 223 payments from 33 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $478.10 | 26 |
| Merz Pharmaceuticals, LLC | $455.86 | 11 |
| Pfizer Inc. | $430.09 | 15 |
| Biogen, Inc. | $368.52 | 18 |
| Neurelis, Inc. | $343.71 | 12 |
What the 2025 payments were for
- Food and Beverage$4,810 · 198 payments
- Education$89.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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