DR. ALAN J WORONOFF M.D.
NPI 1154319663
Radiology - Diagnostic Radiology in Lake Forest, IL
About Dr. Alan J Woronoff M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALAN J WORONOFF M.D. (NPI 1154319663) is an individual diagnostic radiology provider in Lake Forest, Illinois, licensed in Illinois (036159057) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Northwestern Lake Forest Hospital, and maintains a secondary practice location in Abington.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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. Alan J Woronoff M.d. 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
4Medicare enrollment records show Alan Woronoff reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Darby, PA 19023
- Reassigned Medicare billing, Illinois enrollment
- 2 clinicians in this Medicare group
Bala Cynwyd, PA 19004
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Methodist Associates In Healthcare, Inc
- 600 clinicians in this Medicare group
Abington, PA 19001
- Reassigned Medicare billing, Pennsylvania enrollment
- 65 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 91
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILLansdale Hospital
Acute Care Hospitals · Lansdale, PAAbington Memorial Hospital
Acute Care Hospitals · Abington, PASt Mary Medical Center
Acute Care Hospitals · Langhorne, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60045 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.
LAKE FOREST, IL 60045
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 Alan Woronoff's NPI number?
The NPI number for Alan Woronoff is 1154319663. It was assigned to this individual provider in the NPPES registry on October 10, 2005.
Where is Alan Woronoff located?
Alan Woronoff practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. The listed phone number is (847) 535-6300.
What is Alan Woronoff's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Alan Woronoff enrolled in Medicare?
Yes. Alan Woronoff 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 Alan Woronoff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alan Woronoff reassigns Medicare benefits to 4 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL), Mercy Diagnostic Imaging PC (Darby, PA), Jefferson Community Physicians (Bala Cynwyd, PA) and Radiology Group Of Abington PC (Abington, PA). 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 Alan Woronoff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alan Woronoff affiliated with any hospitals?
According to CMS data, Alan Woronoff is affiliated with Northwestern Lake Forest Hospital, Northwestern Memorial Hospital, Lansdale Hospital, Abington Memorial Hospital and St Mary Medical Center.
When was this NPI record last updated?
The NPPES record for Alan Woronoff was last updated on October 21, 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.