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 / MN

KATRINA R HAMMEL, MD

INTERNAL MEDICINE

Medical school: UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE

Graduated: 2005

NPI: 1780894527

Practice Locations (1)

WINONA HEALTH SERVICES

855 MANKATO AVE

WINONA, MN 559874868

5074543650

Source: CMS National Downloadable File, September 2026.

KATRINA HAMMEL, MD | HealthCareAtlasUSA