Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Gregory A Maggass, MD

Individual provider Radiation Oncology Physician · NPI 1124093539

Gregory A Maggass, MD is a Radiation Oncology in Scottsdale, Arizona. Graduated from Medical College of Wisconsin in 1983, 43 years ago. Practices with Arizona Center for Hematology and Oncology PLC, a 62-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
43
Trained at
Medical College of Wisconsin
Licensed in
AZ
In the registry since
2006
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

9055 E Del Camino Dr Ste 200
Scottsdale, AZ 85258-2351
Phone: (480) 922-4600
Fax: (480) 922-5231
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 17059 (AZ)

Record details

NPI number1124093539
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 20, 2006
Last updated in NPPESAugust 9, 2010

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1983 (43 years in practice)
Group practice Arizona Center For Hematology And Oncology Plc — 62 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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