Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mazen Khattab, MD

Individual provider Medical Oncology Physician · NPI 1205804283

Mazen Khattab, MD practises Hematology/Oncology in Phoenix, Arizona. Qualified in 1998, 28 years ago. Practices with City of Hope Medical Group of Arizona LLC, a 157-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
28
Licensed in
AZ
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2925 W Rose Garden Ln Ste 110
Phoenix, AZ 85027-3135
Phone: (623) 265-7215
Fax: (833) 465-1462
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 42859 (AZ)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 42859 (AZ)

Record details

NPI number1205804283
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 8, 2006
Last updated in NPPESSeptember 11, 2023
Certification dateSeptember 11, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice City Of Hope Medical Group Of Arizona Llc — 157 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients1,492
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Consulting Fee $4,145 2 payments
Food and Beverage $2,489 105 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $597 2 payments · travel or lodging paid or reimbursed, such as to attend a conference
Education $31 2 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • City Of Hope Cancer Center Phoenix Hospital · Goodyear, AZ · listed as Western Regional Medical Center, Inc
  • Yavapai Regional Medical Center Hospital · Prescott, AZ
  • Honor Health John C. Lincoln Medical Center Hospital · Phoenix, AZ
  • Honorhealth Deer Valley Medical Center Hospital · Phoenix, AZ
  • Honorhealth Sonoran Crossing Medical Center Hospital · Phoenix, AZ

Colleagues at City of Hope Medical Group of Arizona LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 157 clinicians in the practice; 12 are shown here.

Other providers in Phoenix