Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arizona Oncology Services

Radiation Oncology Physician in Phoenix, AZ · enumerated 2010 · authorized official Estelle Doris, Fnp.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1750683710

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Arizona Oncology Services

Practice address 350 W Thomas Rd, Dept. Radiation Oncology, Phoenix, AZ, 85013

Phone (602) 406-3170

Enumeration date Nov 24, 2010

Last updated in NPPES Nov 24, 2010

Taxonomy & classification

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License AP3858 (AZ) Primary

Authorized official

Name Estelle Doris

Title Fnp

Phone (602) 956-7850

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Arizona Oncology Services located?

The practice location on file with NPPES is in Phoenix, AZ.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-11-24. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-24.