Othon Iliopoulos, MD
NPI 1447352448ActiveIndividual· Internal Medicine, Medical Oncology· Boston, MA
Internal Medicine, Medical Oncology (MD) with Massachusetts General Physicians Organization Inc and 1 other group, practicing in Boston, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $208,451 for 21 claims, against $11,452 paid for services in 2024. Merck Sharp & Dohme LLC reported $57,774 in payments in 2025, mostly speaking and faculty fees. Lists Brigham and Women's Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1447352448 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 1, 2006 |
| Last updated in NPPES | Dec 18, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 76267 | 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 - Medical Oncology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 42 |
|---|---|
| Services billed | 87 across 4 procedure codes |
| Paid by Medicare | $11,452 |
Part D prescriptions in 2024
| Prescriptions (claims) | 21 · 23 30-day fills |
|---|---|
| Total drug cost | $208,451 |
| Generic share | 57% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
- The General Hospital CorporationBoston, MA · 1,267 clinicians
Hospital affiliations
- Brigham and Women's HospitalBoston, MA
- Massachusetts General HospitalBoston, MA
Industry payments (Open Payments)
- 2025$57,774 · 26 payments from 1 company
- 2024$18.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $57,774 | 26 |
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$32,640 · 3 payments
- Travel and Lodging$24,700 · 12 payments
- Food and Beverage$408.18 · 10 payments
- Education$25.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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