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

MICHAEL J BRENNAN, DO

CRITICAL CARE (INTENSIVISTS)

Medical school: LAKE ERIE COL OF OSTEOPATHIC MEDICINE, BRADENTON

Graduated: 2019

NPI: 1811550981

Practice Locations (4)

RIVERSIDE EMERGENCY PHYSICIANS LLC

350 N WALL ST

KANKAKEE, IL 609012901

8159331671

ADVOCATE HEALTH AND HOSPITALS CORPORATION

4440 W 95TH ST

OAK LAWN, IL 604532600

7086844393

RUSH UNIVERSITY MEDICAL GROUP

520 S MAPLE AVE

OAK PARK, IL 603041022

7086602240

RUSH OAK PARK ER PHYSICIANS GROUP

520 S MAPLE AVE

OAK PARK, IL 603041022

7086606665

Source: CMS National Downloadable File, September 2026.