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

HEATHER C. JOHNSON SERUM, MD

INTERNAL MEDICINE

Medical school: UNIVERSITY OF MINNESOTA MEDICAL SCHOOL

Graduated: 2006

Also: PEDIATRIC MEDICINE

NPI: 1730381153

Practice Locations (1)

ALLINA HEALTH SYSTEM

440 ELM ST E

ANNANDALE, MN 553021109

3206825225

Source: CMS National Downloadable File, September 2026.