Mazen Khattab, MD
NPI 1205804283ActiveIndividual· Internal Medicine, Hematology & Oncology· Phoenix, AZ
Internal Medicine, Hematology & Oncology (MD) with City of Hope Medical Group of Arizona LLC, practicing in Phoenix, Arizona. In 2024 Medicare paid $4,237,373 for 1,492 patients, and Part D covered 1,378 of their prescriptions, 66% of them generic. Stemline Therapeutics Inc. was the largest of 38 companies reporting payments in 2025, $7,262 in all, mostly consulting fees. Lists City of Hope Cancer Center Phoenix and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1205804283 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 8, 2006 |
| Last updated in NPPES | Sep 11, 2023 |
| Certified by provider | Sep 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 42859 | AZ |
| Internal Medicine, Medical Oncology | 207RX0202X | 42859 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,492 |
|---|---|
| Services billed | 216,759 across 136 procedure codes |
| Paid by Medicare | $4,237,373 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,378 · 2,253 30-day fills |
|---|---|
| Patients | 382 |
| Total drug cost | $2,685,092 |
| Generic share | 66% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- City of Hope Medical Group of Arizona LLCGoodyear, AZ · 160 clinicians
Hospital affiliations
- City of Hope Cancer Center PhoenixGoodyear, AZ
- Honor Health John C. Lincoln Medical CenterPhoenix, AZ
- Honorhealth Deer Valley Medical CenterPhoenix, AZ
- Honorhealth Sonoran Crossing Medical CenterPhoenix, AZ
- Yavapai Regional Medical CenterPrescott, AZ
Industry payments (Open Payments)
- 2025$7,262 · 111 payments from 38 companies
- 2024$8,914 · 238 payments from 51 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stemline Therapeutics Inc. | $2,622 | 5 |
| Daiichi Sankyo Inc. | $1,782 | 5 |
| Gilead Sciences, Inc. | $911.95 | 12 |
| Abbvie Inc. | $191.52 | 9 |
| Astrazeneca Pharmaceuticals LP | $175.76 | 8 |
What the 2025 payments were for
- Consulting Fee$4,145 · 2 payments
- Food and Beverage$2,489 · 105 payments
- Travel and Lodging$596.64 · 2 payments
- Education$31.28 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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