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

MATTHEW J OBRIEN, MD

INTERNAL MEDICINE

Graduated: 2004

Offers telehealth

NPI: 1306900378

Practice Locations (2)

675 N SAINT CLAIR ST, SUITE 18 200

CHICAGO, IL 606115929

680 N LAKE SHORE DR, SUITE 1000

CHICAGO, IL 606118709

Source: CMS National Downloadable File, September 2026.

MATTHEW OBRIEN, MD | HealthCareAtlasUSA