Dr. Mark C. Johnson, MD - Mason City, IA - Internal Medicine

Dr. Mark Johnson

  • Internal Medicine
  • Mason City, IA
  • Languages supported at his practice: English
  • Accepting New Patients

Dr. Johnson's Background


Mark C. Johnson, MD is a practicing Internist in Mason City, IA. Dr. Johnson graduated from University of Iowa Roy J & Lucille A Carver College of Medicine in 1977 and has been in practice for 40 years. He completed a residency at University of Nebraska Medical Center. He currently practices at Mercy Kidney Center and is affiliated with Mercy Medical Center North Iowa East Campus and Mercy Medical Center North Iowa West Campus. Dr. Johnson accepts multiple insurance plans including Aetna, Wellmark and Medicare. Displaying the profile of a physician or provider on this website does not constitute or imply endorsement, recommendation, or favoring by the sponsoring hospital. The views and opinions of authors expressed herein do not necessarily state or reflect those of Trinity Health Corporation or any of its hospitals/ministries, and shall not be used for advertising or product endorsement purposes.

Hospital Affiliations
  • Residency
  • University of Nebraska Medical Center
  • Medical School, 1977
  • University of Iowa Roy J & Lucille A Carver College of Medicine
  • Iowa City, IA