DR. SEAN ALEXANDER FEINBERG MD
NPI 1104273549
Radiology - Diagnostic Radiology in Rockford, IL
About Dr. Sean Alexander Feinberg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SEAN ALEXANDER FEINBERG MD (NPI 1104273549) is an individual diagnostic radiology provider in Rockford, Illinois, licensed in Connecticut (62037) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Naples Community Hospital, and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 5
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. Sean Alexander Feinberg 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
60Medicare enrollment records show Sean Feinberg reassigns Medicare billing to 60 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rockford, IL 61114
- Reassigned Medicare billing, Illinois enrollment
- 1,375 clinicians in this Medicare group
Harvard, IL 60033
- Reassigned Medicare billing, Illinois enrollment
- 382 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Illinois enrollment
- 671 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Florida enrollment
- 2 clinicians in this Medicare group
Freeport, IL 61032
- Reassigned Medicare billing, Florida enrollment
- 6 clinicians in this Medicare group
Chicago, IL 60622
- Reassigned Medicare billing, Florida and Illinois enrollments
- 12 clinicians in this Medicare group
Chicago, IL 60613
- Reassigned Medicare billing, Illinois enrollment
- 48 clinicians in this Medicare group
Forrest, IL 61741
- Reassigned Medicare billing, Illinois enrollment
- 158 clinicians in this Medicare group
Prairie Du Chien, WI 53821
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1295883247 (Wisconsin)
- 120 clinicians in this Medicare group
Chrisman, IL 61924
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1679502322 (Illinois)
- 216 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 44
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Naples Community Hospital
Acute Care Hospitals · Naples, FLJavon Bea Hospital
Acute Care Hospitals · Rockford, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61114 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.
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.
ROCKFORD, IL 61114
ROCKFORD, IL 61114
ROCKFORD, IL 61114
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 Sean Feinberg's NPI number?
The NPI number for Sean Feinberg is 1104273549. It was assigned to this individual provider in the NPPES registry on May 16, 2016.
Where is Sean Feinberg located?
Sean Feinberg practices at 8201 E Riverside Blvd, Rockford, IL 61114. The listed phone number is (815) 971-7000.
What is Sean Feinberg's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Sean Feinberg enrolled in Medicare?
Yes. Sean Feinberg 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 Sean Feinberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sean Feinberg reassigns Medicare benefits to 60 organizations: Rockford Health Physicians (Rockford, IL), Mercy Harvard Hospital Inc (Harvard, IL), Mercy Health System Corporation (Janesville, WI), Camelot Radiology Associates Ltd (Freeport, IL), Freeport Memorial Hospital (Freeport, IL) and 55 more organizations, 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 Sean Feinberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sean Feinberg accept?
Health plans from Avera Health Plans, Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Blue Cross Blue Shield of Wyoming and Blue Cross and Blue Shield of Nebraska and 7 other insurers list Sean Feinberg 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.
Is Sean Feinberg affiliated with any hospitals?
According to CMS data, Sean Feinberg is affiliated with Naples Community Hospital and Javon Bea Hospital.
When was this NPI record last updated?
The NPPES record for Sean Feinberg was last updated on November 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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. Sean Alexander Feinberg, MD · NPI 1104273549
Diagnostic Radiology physician in Rockford, Illinois. Individual provider, active in the CMS NPPES registry since May 16, 2016.
## Identity
- **NPI:** 1104273549 (Entity type: Individual)
- **Enumerated:** May 16, 2016
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 62037 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 8201 E RIVERSIDE BLVD, Rockford, IL 61114-2300
- **Phone:** (815) 971-7000
## 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:** 60 organizations under Medicare reassignment (form CMS-855R): Rockford Health Physicians (NPI 1043242886, Rockford, IL); Mercy Harvard Hospital Inc (NPI 1427001445, Harvard, IL); Mercy Health System Corporation (NPI 1598718603, Janesville, WI); Camelot Radiology Associates Ltd (NPI 1841244753, Freeport, IL); Freeport Memorial Hospital (NPI 1447228788, Freeport, IL); and 55 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** November 19, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1104273549) · Data from the CMS NPPES public registry.