Clinicians affiliated with Kidney Specialists Of Illinois, LLC

4 clinicians on file with this group · most practice in Chicago-Naperville-Elgin, IL-IN · PAC ID 9931339546

Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

4 clinicians affiliated with Kidney Specialists Of Illinois, LLC are in the 2024 Medicare Part B data, 3 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report

Affiliated clinicians by specialty, 2024

All specialties · Internal Medicine (2) · Nephrology (1) · Nurse Practitioner (1)

Specialty links go to the specialty in Chicago-Naperville-Elgin, IL-IN.

Clinicians affiliated with Kidney Specialists Of Illinois, LLC, 2024

Alphabetical by last name; 4.

NameSpecialtyCity
Mustafa M Ali, M.D.NephrologyWashington, DC
Rebecca Etrenne, APNNurse PractitionerChicago, IL
Sajid Mahmood, M.D.Internal MedicineNorth Chicago, IL
Ahmed F Siddiqui, D.O.Internal MedicineChicago, IL

Practice locations

Listed practice locations in Illinois.

Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.

Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations