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

BRENNAN BARRETT, DO

INTERVENTIONAL RADIOLOGY

Graduated: 2015

NPI: 1669847307

Practice Locations (3)

ST BERNARD HOSPITAL

326 W 64TH ST

CHICAGO, IL 606213114

7739623900

LORETTO HOSPITAL

645 S CENTRAL AVE

CHICAGO, IL 606445059

7738545567

MOUNT SINAI COMMUNITY FOUNDATION

CALIFORNIA AVE AT 15TH ST

CHICAGO, IL 606081858

7735422000

Source: CMS National Downloadable File, September 2026.

BRENNAN BARRETT, DO | HealthCareAtlasUSA