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Michael Robert Marohn, DO

Director, Minimally Invasive Surgery (MIS) Fellowship
Associate Professor of Surgery
Appointment Phone


Main Location

The Johns Hopkins Hospital

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Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Director, Minimally Invasive Surgery (MIS) Fellowship
  • Director, Minimally Invasive Surgery Training Center (MISTC)
  • Associate Professor of Surgery

Centers & Institutes

  • Comprehensive Hernia Center


Achalasia, Adrenal Disorders, Adrenal Surgery, Bile Duct Injury, Bile Duct Surgery, Biliary Tract Surgery, Colitis, Ulcerative, Colon Cancer, Colon Surgery, Colonic Inertia, Colorectal Cancer, Colorectal Surgery, Crohn's Disease, Diverticulosis, Endocrine Diseases, Endocrine Oncology, Endocrine Surgery, Gallbladder Surgery, Gallstones, Gastroesophageal Reflux Disease, General Surgery, GERD Surgery, Hiatal Hernia, Inflammatory Bowel Disease, Minimally Invasive Surgery, Pancreatic Surgery, Pancreatic Tumors, Parathyroid Surgery, Periampullary Tumors, Rectal Surgery, Reflux and Burning, Robotic Surgery, Spleen Surgery, Thyroid Surgery

Research Interests

Natural orifice transluminal endoscopic surgery (NOTES); Minimally Invasive Surgery (MIS); Emerging interventional technologies; Surgical Robotics / Computer, Assisted Surgery; Telemedicine; Image integration in functional/ interventional medicine; Surgical education, training, and simulation; Surgeon Performed Ultrasound; Harnessing technology for improved patient care & safety; Global impact of emerging technologies


Col. Marohn, USAF (Ret) was formerly an associate professor and vice chair of the Norman M. Rich Department of Surgery, Uniformed Services University (USU), Bethesda, MD; chief of general surgery, Malcolm Grow USAF Medical Center; and associate program director, Walter Reed Army Medical Center general surgery residency. He co-founded the USU Department of Defense Tri-service Videoendoscopic Surgery Program.


  • English
  • French

Additional Resources

Additional Resources +
  • Education +


    • United States Air Force School of Aerospace Medicine (Brooks City Base TX ) (1988)
    • Chicago College Of Osteopathic Medicine Midwestern University (Downers Grove IL ) (1979)


    • Wilford Hall Medical Center (AETC) / General Surgery (Lackland AFB TX ) (1981)


    • Wilford Hall Medical Center (AETC) / General Surgery (Lackland AFB TX ) (1985)
    • Wilford Hall Medical Center (AETC) / Surgical Critical Care (Lackland AFB TX ) (1982)


    • General, American Board of Surgery - Surgery (2010)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +
  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Sheikh Zayed Tower
    Baltimore, MD 21287
    Appointment Phone: 410-955-5464
    Location Map
    Johns Hopkins Bayview Medical Center
    4940 Eastern Avenue
    Baltimore, MD 21224
    Appointment Phone: 410-550-0400
    Location Map


    • Surgery - GI Surgery Surgery

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