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

ZAIN BIN AHSAN, DO

INTERNAL MEDICINE

Graduated: 2022

NPI: 1740919588

Practice Locations (1)

MOUNT SINAI COMMUNITY FOUNDATION

CALIFORNIA AVE AT 15TH ST

CHICAGO, IL 606081858

7735422000

Source: CMS National Downloadable File, September 2026.