Ersin Selcuk Unal, MD, PHD
NPI 1578825824ActiveIndividual· Internal Medicine, Hematology & Oncology· Lakewood, CA
Internal Medicine, Hematology & Oncology (MD, PHD) with The Oncology Institute Ca, A Professional Corporation, practicing in Lakewood, California. Their prescriptions cost Medicare Part D more than their services did: $2,149,985 for 667 claims, against $107,241 paid for services in 2024. Janssen Biotech, Inc. was the largest of 46 companies reporting payments in 2025, $4,909 in all, mostly food and beverage.
Overview
| NPI | 1578825824 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Jun 12, 2012 |
| Last updated in NPPES | Sep 6, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A163760 | CA |
| Internal Medicine | 207R00000X | 14492 | ND |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 14492 | ND |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 94 |
|---|---|
| Services billed | 5,654 across 56 procedure codes |
| Paid by Medicare | $107,241 |
Part D prescriptions in 2024
| Prescriptions (claims) | 667 · 1,003 30-day fills |
|---|---|
| Patients | 186 |
| Total drug cost | $2,149,985 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- The Oncology Institute Ca, A Professional CorporationSan Gabriel, CA · 113 clinicians
Industry payments (Open Payments)
- 2025$4,909 · 218 payments from 46 companies
- 2024$4,923 · 234 payments from 45 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $955.82 | 36 |
| Astrazeneca Pharmaceuticals LP | $549.68 | 32 |
| Novartis Pharmaceuticals Corporation | $258.21 | 17 |
| Pfizer Inc. | $254.84 | 13 |
| Takeda Pharmaceuticals U.S.A., Inc. | $240.53 | 9 |
What the 2025 payments were for
- Food and Beverage$4,734 · 213 payments
- Education$175.01 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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