Todd B. Ellerin, M.D.
NPI 1205837176ActiveIndividual· Internal Medicine, Infectious Disease· Boston, MA
Internal Medicine, Infectious Disease (M.D.) in Boston, Massachusetts, trained at Tufts University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $652,793 for 371 claims, against $49,930 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 4 companies reporting payments in 2025, $162,772 in all, mostly speaking and faculty fees.
Overview
| NPI | 1205837176 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 2, 2005 |
| Last updated in NPPES | Sep 15, 2020 |
| Certified by provider | Sep 15, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 210477 | 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 - Infectious Disease (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 302 |
|---|---|
| Services billed | 435 across 12 procedure codes |
| Paid by Medicare | $49,930 |
Part D prescriptions in 2024
| Prescriptions (claims) | 371 · 434 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $652,793 |
| Generic share | 52% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Infectious Disease |
Medical group
- South Shore Medical Center, Inc.Norwell, MA · 175 clinicians
Hospital affiliations
- Beth Israel Deaconess Medical CenterBoston, MA
- Brigham and Women's HospitalBoston, MA
- South Shore HospitalSouth Weymouth, MA
Industry payments (Open Payments)
- 2025$162,772 · 103 payments from 4 companies
- 2024$184,631 · 134 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $107,824 | 71 |
| Sanofi Pasteur Inc. | $33,180 | 17 |
| Gilead Sciences, Inc. | $13,644 | 11 |
| Viiv Healthcare Company | $8,125 | 4 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$138,749 · 51 payments
- Travel and Lodging$20,996 · 24 payments
- Food and Beverage$3,027 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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