DR. BRIAN D STEIN M.D.
NPI 1154529501
Internal Medicine - Pulmonary Disease in Chicago, IL
About Dr. Brian D Stein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRIAN D STEIN M.D. (NPI 1154529501) is an individual pulmonary disease provider in Chicago, Illinois, licensed in Illinois (036-113935) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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 (PECOS)
Dr. Brian D Stein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Brian Stein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 2,169 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 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 60612
CHICAGO, IL 60612
CHICAGO, IL 60612
CHICAGO, IL 60612
CHICAGO, IL 60612
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 Brian Stein's NPI number?
The NPI number for Brian Stein is 1154529501. It was assigned to this individual provider in the NPPES registry on July 6, 2007.
Where is Brian Stein located?
Brian Stein practices at 1725 W Harrison St Suite 054, Chicago, IL 60612. The listed phone number is (312) 942-6744.
What is Brian Stein's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Brian Stein enrolled in Medicare?
Yes. Brian Stein is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Brian Stein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Stein reassigns Medicare benefits to Rush University Medical Group (Chicago, IL). The 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 Brian Stein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Brian Stein was last updated on July 1, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.