Karlos Z. Oregel, M.D.
NPI 1184913006ActiveIndividual· Internal Medicine, Hematology & Oncology· Huntington Beach, CA
Internal Medicine, Hematology & Oncology (M.D.) in Huntington Beach, California, trained at University of California, Geffen School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $965,701 for 330 claims, against $49,177 paid for services in 2024. Azurity Pharmaceuticals, Inc. was the largest of 7 companies reporting payments in 2025, $265.28 in all, mostly food and beverage.
Overview
| NPI | 1184913006 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 31, 2011 |
| Last updated in NPPES | Jul 17, 2023 |
| Certified by provider | Jul 17, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A130317 | CA |
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 | 176 |
|---|---|
| Services billed | 540 across 12 procedure codes |
| Paid by Medicare | $49,177 |
Part D prescriptions in 2024
| Prescriptions (claims) | 330 · 467 30-day fills |
|---|---|
| Patients | 64 |
| Total drug cost | $965,701 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Faculty Physicians and Surgeons of LlusmLoma Linda, CA · 1,315 clinicians
- County of VenturaVentura, CA · 344 clinicians
- Community Memorial Health SystemOxnard, CA · 185 clinicians
Hospital affiliations
- Community Memorial Hospital - VenturaVentura, CA
- Ventura County Medical CenterVentura, CA
Industry payments (Open Payments)
- 2025$265.28 · 11 payments from 7 companies
- 2024$8,614 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Azurity Pharmaceuticals, Inc. | $55.13 | 3 |
| Merck Sharp & Dohme LLC | $51.40 | 2 |
| Array Biopharma Inc | $46.66 | 2 |
| Janssen Scientific Affairs, LLC | $32.19 | 1 |
| Pfizer Inc. | $30.65 | 1 |
What the 2025 payments were for
- Food and Beverage$160.13 · 7 payments
- Education$105.15 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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