Eleni Efstathiou, M.D.
NPI 1447654470ActiveIndividual· Internal Medicine, Medical Oncology· Portland, OR
Internal Medicine, Medical Oncology (M.D.) with University Professional Services and 1 other group, practicing in Portland, Oregon. Their prescriptions cost Medicare Part D more than their services did: $6,225,906 for 1,342 claims, against $40,400 paid for services in 2024. Pfizer Inc. was the largest of 9 companies reporting payments in 2025, $104,742 in all, mostly consulting fees. Lists Houston Methodist Baytown Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1447654470 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 20, 2014 |
| Last updated in NPPES | Feb 11, 2026 |
| Certified by provider | Feb 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | MF229340 | OR |
| Internal Medicine, Medical Oncology | 207RX0202X | 44660 | TX |
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 (OR); Practitioner - Medical Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 160 |
|---|---|
| Services billed | 415 across 14 procedure codes |
| Paid by Medicare | $40,400 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,342 · 1,577 30-day fills |
|---|---|
| Patients | 142 |
| Total drug cost | $6,225,906 |
| Generic share | 38% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical groups
- University Professional ServicesBeaverton, OR · 1,724 clinicians
- Tmh Physician Associates PLLCKaty, TX · 1,690 clinicians
Hospital affiliations
- Houston Methodist Baytown HospitalBaytown, TX
- Houston Methodist Clear Lake HospitalNassau Bay, TX
- Houston Methodist HospitalHouston, TX
- Houston Methodist West HospitalHouston, TX
- Ohsu Hospital and ClinicsPortland, OR
Industry payments (Open Payments)
- 2025$104,742 · 52 payments from 9 companies
- 2024$109,519 · 48 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $51,973 | 20 |
| Bayer Healthcare Pharmaceuticals Inc. | $14,376 | 6 |
| Tolmar, Inc. | $9,555 | 10 |
| Sumitomo Pharma America, Inc. | $9,379 | 2 |
| Pharmaand Gmbh | $9,006 | 9 |
What the 2025 payments were for
- Consulting Fee$83,527 · 14 payments
- Travel and Lodging$13,956 · 32 payments
- Honoraria$6,800 · 1 payment
- Food and Beverage$458.83 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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