Karo K. Arzoo, M.D.
NPI 1306862859ActiveIndividual· Internal Medicine, Hematology & Oncology· Burbank, CA
Internal Medicine, Hematology & Oncology (M.D.) in Burbank, California, trained at University of California, Geffen School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $9,109,596 for 2,952 claims, against $3,363,643 paid for services in 2024. Menarini Silicon Biosystems, Inc. was the largest of 5 companies reporting payments in 2025, $319.29 in all, mostly food and beverage.
Overview
| NPI | 1306862859 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 15, 2006 |
| Last updated in NPPES | Nov 13, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A64524 | 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 | 715 |
|---|---|
| Services billed | 149,955 across 142 procedure codes |
| Paid by Medicare | $3,363,643 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,952 · 3,881 30-day fills |
|---|---|
| Patients | 355 |
| Total drug cost | $9,109,596 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- The Regents of the University of CaliforniaSanta Monica, CA · 1,462 clinicians
Hospital affiliations
- Providence Saint Joseph Medical CtrBurbank, CA
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- Santa Monica - UCLA Med Ctr & Orthopaedic HospitalSanta Monica, CA
- UCLA West Valley Medical CenterWest Hills, CA
Other facilities
- Arpi, Inc., Home Health Care ServicesHome health agency · Glendale, CA
- US Hospice CoHospice · Agoua Hills, CA
Industry payments (Open Payments)
- 2025$319.29 · 5 payments from 5 companies
- 2024$2,532 · 23 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Menarini Silicon Biosystems, Inc. | $146.53 | 1 |
| Lilly USA, LLC | $106.05 | 1 |
| Pfizer Inc. | $30.65 | 1 |
| Dendreon Pharmaceuticals LLC | $20.17 | 1 |
| Tempus Ai, Inc | $15.89 | 1 |
What the 2025 payments were for
- Food and Beverage$182.59 · 3 payments
- Education$136.70 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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