Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Aatish Madhiwala, MD

Individual provider Anesthesiology Physician · NPI 1225246036

Dr. Aatish Madhiwala, MD practises Anesthesiology in Chicago, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2005, 21 years ago. Practices with Sahag LLC, an 11-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
21
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2875 W 19th St Dept OF Anesthesiology (4TH Floor)
Chicago, IL 60623-3501 Not confirmed with CMS for 16 years — call before visiting
Phone: (773) 484-4099
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 036722808 (IL)

Record details

NPI number1225246036
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 18, 2007
Last updated in NPPESOctober 19, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2005 (21 years in practice)
Group practice Sahag Llc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients28
Services billed 28 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Sahag LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 11 clinicians in the practice; 4 are shown here.

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