Elena Nikou Theodosiou, MD
NPI 1891730982ActiveIndividual· Internal Medicine, Hematology & Oncology· Portsmouth, NH
Internal Medicine, Hematology & Oncology (MD) with St Peters Hospital of the City of Albany, practicing in Portsmouth, New Hampshire. Their prescriptions cost Medicare Part D more than their services did: $2,753,662 for 751 claims, against $7,953 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 2 companies reporting payments in 2025, $35.59 in all, mostly food and beverage. Lists Samaritan Hospital of Troy, New York and 1 other hospital as hospital affiliations.
Overview
| NPI | 1891730982 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 20, 2006 |
| Last updated in NPPES | Jun 9, 2021 |
| Certified by provider | May 25, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 16333 | NH |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 016524 | ME |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 290174 | NY |
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 - Medical Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 32 |
|---|---|
| Services billed | 115 across 8 procedure codes |
| Paid by Medicare | $7,953 |
Part D prescriptions in 2024
| Prescriptions (claims) | 751 · 1,193 30-day fills |
|---|---|
| Patients | 136 |
| Total drug cost | $2,753,662 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Medical Oncology |
Medical group
- St Peters Hospital of the City of AlbanyAlbany, NY · 271 clinicians
Hospital affiliations
- Samaritan Hospital of Troy, New YorkTroy, NY
- St Peter's HospitalAlbany, NY
Industry payments (Open Payments)
- 2025$35.59 · 2 payments from 2 companies
- 2024$90.38 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $18.16 | 1 |
| Pfizer Inc. | $17.43 | 1 |
What the 2025 payments were for
- Food and Beverage$35.59 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Hematology & Oncology providers in New Hampshire →