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  • Cardiovascular Disease, Internal Medicine, Family Medicine
  • 51 years of experience
  • Mayo Clinic Hospital Saint Marys Campus 1216 2nd St Sw, Rochester, MN 55902

Brief Intro

Dr. Johnston graduated from the Dalhousie Univ Fac of Med in 1974. He works in Rochester, MN and 2 other locations and specializes in Cardiovascular Disease, Internal Medicine and Family Medicine. Dr. Johnston is affiliated with Mayo Clinic Hospital Methodist Campus.

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Education Background

MEDICAL SCHOOL

Dalhousie Univ Fac Of Med - 1974

Languages Spoken

  • English

Location & Hours

  • Mayo Clinic
  • 1216 2nd St Sw, Rochester, MN 55902

Specialties Treated

  • Cardiovascular Disease
  • Internal Medicine
  • Family Medicine
  • Cancer 13
  • Cardiology, Heart & Vascular Surgery 13
  • Orthopedics 23
  • Neurology & Neurosurgery 15
  • Gastroenterology & GI Surgery 21
  • Pulmonology & Lung Surgery 22
  • Diabetes & Endocrinology 8
  • Children's Hospital 7
  • Urology 20
  • Psychiatry 23
  • Geriatrics 18
  • Rehabilitation 10
  • Obsterics & Gynecology 3
  • Ophthalmology 1
  • Ear, Nose & Throat 2
  • Rheumatology 1
  • Long Term Care 2
  • Maternity Care (Uncomplicated Pregnancy) 19