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

Individual provider Gastroenterology Physician · NPI 1194784645

Brian Blumenstein, MD is a Gastroenterology in Oak Lawn, Illinois. Graduated from University of Michigan Medical School in 1989, 37 years ago. Practices with Illinois Gastroenterology Group LLC, a 116-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
37
Trained at
University of Michigan Medical School
Licensed in
IL
In the registry since
2006
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

9921 SW Hwy
Oak Lawn, IL 60453-3767
Phone: (708) 425-8616
Fax: (708) 425-9468
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 036082788 (IL)

Record details

NPI number1194784645
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2006
Last updated in NPPESJanuary 15, 2009
Mailing address9921 Southwest Hwy, Oak Lawn, IL 60453-3767

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1989 (37 years in practice)
Group practice Illinois Gastroenterology Group Llc — 116 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Oak Lawn