George Bernard Semeniuk, M.D.
NPI 1316022924ActiveIndividual· Internal Medicine, Hematology & Oncology· Newport Beach, CA
Internal Medicine, Hematology & Oncology (M.D.) with City of Hope Medical Foundation, practicing in Newport Beach, California. In 2024 Medicare paid $2,991,745 for 517 patients, and Part D covered 1,011 of their prescriptions, 73% of them generic. United Therapeutics Corporation was the largest of 6 companies reporting payments in 2025, $124,853 in all, mostly consulting fees. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1316022924 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 25, 2006 |
| Last updated in NPPES | Sep 23, 2021 |
| Certified by provider | Sep 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A61824 | CA |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 517 |
|---|---|
| Services billed | 142,406 across 125 procedure codes |
| Paid by Medicare | $2,991,745 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,011 · 1,466 30-day fills |
|---|---|
| Patients | 131 |
| Total drug cost | $2,751,601 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Other facilities
- Hoag Home HealthHome health agency · Newport Beach, CA
Industry payments (Open Payments)
- 2025$124,853 · 30 payments from 6 companies
- 2024$109,256 · 34 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| United Therapeutics Corporation | $124,560 | 21 |
| E.R. Squibb & Sons, L.L.C. | $81.95 | 3 |
| Caris Mpi, Inc. | $78.94 | 1 |
| Merck Sharp & Dohme LLC | $56.93 | 2 |
| Array Biopharma Inc | $56.19 | 2 |
What the 2025 payments were for
- Consulting Fee$124,560 · 21 payments
- Food and Beverage$267.47 · 8 payments
- Education$25.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 hematologist-oncologists in Newport Beach · All hematologist-oncologists in California