DR. ROBERT I AIZENSTEIN MD
NPI 1467460402
Radiology - Diagnostic Radiology in Glendale, AZ
About Dr. Robert I Aizenstein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT I AIZENSTEIN MD (NPI 1467460402) is an individual diagnostic radiology provider in Glendale, Arizona, licensed in Arizona (40198) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Phoenix, and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Robert I Aizenstein Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Robert Aizenstein reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Glendale, AZ 85304
- Reassigned Medicare billing, Arizona and Illinois enrollments
- 214 clinicians in this Medicare group
Sun City, AZ 85351
- Reassigned Medicare billing, Arizona enrollment
- 211 clinicians in this Medicare group
Scottsdale, AZ 85251
- Reassigned Medicare billing, Illinois enrollment
- 35 clinicians in this Medicare group
Mesa, AZ 85202
- Reassigned Medicare billing, Arizona, California and Illinois enrollments
- 447 clinicians in this Medicare group
Gilbert, AZ 85234
- Reassigned Medicare billing, Arizona enrollment
- 1,081 clinicians in this Medicare group
Page, AZ 86040
- Reassigned Medicare billing, Arizona enrollment
- 48 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85304 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GLENDALE, AZ 85304
GLENDALE, AZ 85304
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Robert Aizenstein's NPI number?
The NPI number for Robert Aizenstein is 1467460402. It was assigned to this individual provider in the NPPES registry on August 4, 2006.
Where is Robert Aizenstein located?
Robert Aizenstein practices at 5605 W Eugie Ave Ste 110, Glendale, AZ 85304. The listed phone number is (623) 847-2000.
What is Robert Aizenstein's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Robert Aizenstein enrolled in Medicare?
Yes. Robert Aizenstein is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Robert Aizenstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Aizenstein reassigns Medicare benefits to 6 organizations: Associated Valley Radiologists Ltd (Glendale, AZ), Banner Imaging Services LLC (Sun City, AZ), Smi Imaging, LLC (Scottsdale, AZ), Sonoran Radiology Ltd (Mesa, AZ), Banner Hospital Based Physicians Arizona LLC (Gilbert, AZ) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Aizenstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Aizenstein accept?
Health plans from Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Robert Aizenstein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Robert Aizenstein was last updated on February 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Robert I Aizenstein, MD · NPI 1467460402
Diagnostic Radiology physician in Glendale, Arizona. Individual provider, active in the CMS NPPES registry since August 4, 2006.
## Identity
- **NPI:** 1467460402 (Entity type: Individual)
- **Enumerated:** August 4, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 40198 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 5605 W EUGIE AVE STE 110, Glendale, AZ 85304-1273
- **Phone:** (623) 847-2000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Associated Valley Radiologists Ltd (NPI 1932683257, Glendale, AZ); Banner Imaging Services LLC (NPI 1770139958, Sun City, AZ); Smi Imaging, LLC (NPI 1972004489, Scottsdale, AZ); Sonoran Radiology Ltd (NPI 1033745708, Mesa, AZ); Banner Hospital Based Physicians Arizona LLC (NPI 1124374822, Gilbert, AZ); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** February 25, 2019
- **Other identifiers:** Medicaid 327037 (AZ)
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Source: [NPI Profile](https://npiprofile.com/npi/1467460402) · Data from the CMS NPPES public registry.