WILLIAM G BERGER MD
NPI 1003827007
Radiology - Diagnostic Radiology in Tucson, AZ
About William G Berger Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM G BERGER MD (NPI 1003827007) is an individual diagnostic radiology provider in Tucson, Arizona, licensed in Arizona (29957) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Lakewood, and is a graduate of Georgetown University School Of Medicine (1995).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 4
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
William G Berger 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
3Medicare enrollment records show William Berger reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tucson, AZ 85711
- Reassigned Medicare billing, Arizona enrollment
- 40 clinicians in this Medicare group
Tucson, AZ 85712
- Reassigned Medicare billing, Arizona enrollment
- 136 clinicians in this Medicare group
Lakewood, CO 80228
- Reassigned Medicare billing, Colorado enrollment
- 63 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 55
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 85711 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
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 William Berger's NPI number?
The NPI number for William Berger is 1003827007. It was assigned to this individual provider in the NPPES registry on August 11, 2006.
Where is William Berger located?
William Berger practices at 677 N Wilmot Rd, Tucson, AZ 85711. The listed phone number is (520) 571-9599.
What is William Berger's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is William Berger enrolled in Medicare?
Yes. William Berger 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 William Berger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Berger reassigns Medicare benefits to 3 organizations: Radiology Ltd., LLC (Tucson, AZ), Arizona Oncology Associates PC (Tucson, AZ) and Colorado Imaging Associates P C (Lakewood, CO). 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 William Berger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Berger accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health and Blue Cross Blue Shield of Arizona list William Berger 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 William Berger was last updated on October 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.