HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / IL

MITCHELL C POSNER, MD

SURGICAL ONCOLOGY

Medical school: STATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE

Graduated: 1981

NPI: 1700941531

Practice Locations (2)

THE UNIVERSITY OF CHICAGO MEDICAL CENTER

5841 S MARYLAND AVE

CHICAGO, IL 606371443

7737021000

UNIVERSITY OF CHICAGO

5841 S MARYLAND AVE

CHICAGO, IL 606371443

8888240200

Source: CMS National Downloadable File, September 2026.