STEVEN HERWICK MD
NPI 1235182791
Radiology - Diagnostic Radiology in Chicago, IL
About Steven Herwick Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVEN HERWICK MD (NPI 1235182791) is an individual diagnostic radiology provider in Chicago, Illinois, licensed in Illinois (036106709) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Northwestern University Feinberg Medical School (1999).
NPPES Registry Identity
Specialties & Licenses 2
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
Steven Herwick 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
2Medicare enrollment records show Steven Herwick reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 4,870 clinicians in this Medicare group
Park Ridge, IL 60068
- Reassigned Medicare billing, Illinois enrollment
- 202 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 58
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.
Advocate Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILAdvocate Lutheran General Hospital
Acute Care Hospitals · Park Ridge, ILPresence Saint Joseph Hospital - Chicago
Acute Care Hospitals · Chicago, ILCommunity First Medical Center
Acute Care Hospitals · Chicago, ILAdvocate Good Shepherd Hospital
Acute Care Hospitals · Barrington, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60657 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.
CHICAGO, IL 60657
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 Steven Herwick's NPI number?
The NPI number for Steven Herwick is 1235182791. It was assigned to this individual provider in the NPPES registry on May 18, 2006.
Where is Steven Herwick located?
Steven Herwick practices at 836 W Wellington Ave, Chicago, IL 60657. The listed phone number is (773) 296-7820.
What is Steven Herwick's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Steven Herwick enrolled in Medicare?
Yes. Steven Herwick 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 Steven Herwick's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Herwick reassigns Medicare benefits to 2 organizations: Advocate Health And Hospitals Corp. (Chicago, IL) and Integrated Imaging Consultants LLC (Park Ridge, IL). 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 Steven Herwick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Steven Herwick affiliated with any hospitals?
According to CMS data, Steven Herwick is affiliated with Advocate Illinois Masonic Medical Center, Advocate Lutheran General Hospital, Presence Saint Joseph Hospital - Chicago, Community First Medical Center and Advocate Good Shepherd Hospital.
When was this NPI record last updated?
The NPPES record for Steven Herwick was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.