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Michael Robert Marohn, D.O.

4.6 out of 5
77 Ratings
Photo of Dr. Michael Robert Marohn, D.O.

Emeritus Director, Minimally Invasive Surgery Training Center (MISTC)

Associate Professor of Surgery


Languages: English, French

Expertise: Achalasia, Adrenal Diseases, Adrenal Surgery, Bile Duct Injury, Bile Duct Surgery, Biliary Tract Surgery, Colon Cancer, Colon Surgery, Colonic Inertia, Colorectal Cancer, Colorectal Surgery, Crohn's Disease, Diaphragmatic Hernia, Diverticulosis, Endocrine Diseases, Endocrine Oncology, Endocrine Surgery, Gallbladder Surgery, Gallstones, Gastroesophageal Reflux Disease (GERD), General Surgery, GERD Surgery, Hiatal Hernia, Inflammatory Bowel Disease (IBD), Inguinal Hernia, Inguinal Hernia Repair, Minimally Invasive Surgery, Pancreatic Surgery, Pancreatic Tumors, Paraesophageal Hernia, Parathyroid Surgery, Periampullary Tumors, Rectal Surgery, Reflux and Burning, Robotic Surgery, Spleen Surgery, Superior Mesenteric Artery Syndrome, Surgery, Thyroid Surgery, Ulcerative Colitis more

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 more

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The Johns Hopkins Hospital (Main Entrance)


1800 Orleans St. Sheikh Zayed Tower Baltimore, MD 21287 map

Johns Hopkins Bayview Medical Center


4940 Eastern Avenue Baltimore, MD 21224 map


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


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

Departments / Divisions

Centers & Institutes



  • DO, Midwestern University Chicago College of Osteopathic Medicine (1979)


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


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

Board Certifications

  • American Board of Surgery / Surgery- General (1989)

Research & Publications

Core Facility: Survival - Blalock

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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