FARHAN MOHAMMAD MAZHAR M.D.
NPI 1194012039
Anesthesiology in Chicago, IL
About Farhan Mohammad Mazhar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FARHAN MOHAMMAD MAZHAR M.D. (NPI 1194012039) is an individual anesthesiology provider in Chicago, Illinois, licensed in Wisconsin (63710-20) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of Other (2011).
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 and accepts Medicare assignment
Farhan Mohammad Mazhar 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 Farhan Mazhar reassigns Medicare billing to 4 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
- 385 clinicians in this Medicare group
Oak Park, IL 60304
- Reassigned Medicare billing, Illinois enrollment
- 60 clinicians in this Medicare group
Pleasant Prairie, WI 53158
- Reassigned Medicare billing, Wisconsin enrollment
- 210 clinicians in this Medicare group
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 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
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.
Ascension Columbia St Mary's Hospital Milwaukee
Acute Care Hospitals · Milwaukee, WIAscension SE Wisconsin Hospital
Acute Care Hospitals · Milwaukee, WIMedicare 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.
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 Farhan Mazhar's NPI number?
The NPI number for Farhan Mazhar is 1194012039. It was assigned to this individual provider in the NPPES registry on June 29, 2011.
Where is Farhan Mazhar located?
Farhan Mazhar practices at 600 S Paulina St, Chicago, IL 60612. The listed phone number is (312) 942-5459.
What is Farhan Mazhar's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Farhan Mazhar enrolled in Medicare?
Yes. Farhan Mazhar 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 Farhan Mazhar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Farhan Mazhar reassigns Medicare benefits to 4 organizations: Midwest Anesthesia Partners, LLC (Chicago, IL), Rush Oak Park Nocturnist (Oak Park, IL), Vituity-Wisconsin Anesthesia Sc (Pleasant Prairie, WI) and Ascension Medical Group-Southeast Wisconsin Inc (Milwaukee, WI). 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 Farhan Mazhar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Farhan Mazhar affiliated with any hospitals?
According to CMS data, Farhan Mazhar is affiliated with Ascension Columbia St Mary's Hospital Milwaukee and Ascension SE Wisconsin Hospital.
When was this NPI record last updated?
The NPPES record for Farhan Mazhar was last updated on October 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.