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Photo of Dr. Michael Marohn

Michael Robert Marohn, D.O.

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

Male  | Languages: English, French

Appointment Phone


Main Location

The Johns Hopkins Hospital

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


  • Surgery - Ravitch Division of GI Surgery


The Johns Hopkins Hospital

Appointment Phone: 410-955-5464

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map

Johns Hopkins Bayview Medical Center

Appointment Phone: 410-550-0400

4940 Eastern Avenue
Baltimore, MD 21224 map


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 (GERD), 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

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; Natural orifice transluminal endoscopic surgery (NOTES); Endocrine Surgery: Minimally Invasive Approaches


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. more

    Additional Information

  • Education +


    • Chicago College Of Osteopathic Medicine Midwestern University / DO (1979)


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


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


    • American Board of Surgery / Surgery- General (1989, 2010)
  • Research & Publications +

    CORE Facilities

    Survival - Blalock

  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +
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