ROCKFORD RADIOLOGY ASSOC
NPI 1740247535
Radiology - Diagnostic Radiology in Rockford, IL

Q: What is Rockford Radiology Assoc's NPI number?

The NPI number for Rockford Radiology Assoc is 1740247535. It was assigned to this organization in the NPPES registry on April 27, 2006.

Q: What is Rockford Radiology Assoc's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Active since April 27, 2006

5666 E STATE ST, ROCKFORD, IL 61108(815) 327-2468 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 18, 2025, Sep 25, 2024, Nov 16, 2021 and 1 more (4 updates tracked since 2018).

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About Rockford Radiology Assoc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROCKFORD RADIOLOGY ASSOC (NPI 1740247535) is a healthcare organization registered as a diagnostic radiology in Rockford, Illinois and active in the NPI registry since April 2006. The organization maintains a secondary practice location in Dixon and lists Charles Ambelang, President, as its authorized official.

NPPES Registry Identity

NPI1740247535

Entity TypeOrganization

Primary Taxonomy2085R0202X

Legal Business NameROCKFORD RADIOLOGY ASSOC

Location Address5666 E STATE STRockford, IL 61108

Mailing AddressPo Box 809025Chicago, IL 60680-9025 · (866) 421-8808 · Fax (855) 344-3003

Phone(815) 327-2468

Organization SubpartNo

Authorized OfficialCharles AmbelangPresident · (920) 918-1602

Enumeration DateApril 27, 2006

Last NPPES UpdateNovember 18, 20254 updates tracked since enumeration

NPPES CertifiedNovember 18, 2025

✔ NPI 1740247535 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

5666 E STATE ST, Rockford, IL 61108

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Secondary Practice Location 1

Location 1403 E 1st StDixon, IL 61021-3116 · Phone (815) 285-5972

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rockford Radiology Assoc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by October 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateCaliforniaEnrollment IDO20211022001895Non-DME Part B · Clinic/Group PracticeDue dateOctober 31, 2026

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 60 clinicians reassign Medicare billing to Rockford Radiology Assoc, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 8 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 2

Diagnostic Radiology59

Interventional Radiology1

Nearest to this location (20)

See all 60

Charles Ambelang, M.D.

Diagnostic Radiology

NPI 1477718377