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

Mr. Mark Kosanovich, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1275517401

Mr. Mark Kosanovich, MD is an Obstetrics/Gynecology in Chicago, Illinois. Graduated from Rush Medical College of Rush University in 1997, 29 years ago. Practices with Legacy Community Health Services, Inc, a 149-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
29
Trained at
Rush Medical College of Rush University
Licensed in
IL
In the registry since
2005
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

2525 S Michigan Ave B-390
Chicago, IL 60616-2333
Phone: (312) 567-6691
Fax: (312) 328-7895
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 036100871 (IL)

Record details

NPI number1275517401
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 1, 2005
Last updated in NPPESJune 12, 2012
Mailing address2525 S Michigan Ave, B-390, Chicago, IL 60616-2333

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1997 (29 years in practice)
Group practice Legacy Community Health Services, Inc — 149 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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