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

Joel Pekow

Individual provider Internal Medicine Physician · NPI 1902896566

Joel Pekow practises Gastroenterology in Chicago, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 2003, 23 years ago. Practices with University of Chicago, a 1,681-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
23
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL
In the registry since
2005
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Practice location Address checks out

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone: (888) 824-0200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036117173 (IL)

Record details

NPI number1902896566
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 25, 2005
Last updated in NPPESOctober 24, 2022

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 2003 (23 years in practice)
Group practice University Of Chicago — 1681 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 31 times · 54th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 25 times · 53rd percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients175
Services billed 426 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 University of Chicago

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1681 clinicians in the practice; 12 are shown here.

Other providers in Chicago