Dr. Marcelo W. Hinojosa is a UCI Health surgeon who specializes in gastrointestinal surgery and bariatric surgery.

Marcelo W. Hinojosa, MD


General Surgery

Clinical Interests

Bariatric surgery, Metabolic surgery, Weight-loss surgery, gastroesophageal reflux disease (GERD), Minimally invasive anti-reflux surgery, Minimally invasive management of achalasia, Hernia surgery, Minimally invasive gastrointestinal surgery, gastric tumors and malignancy

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Medical School
UC Irvine College of MedicineMD
University of California, Irvine Department of SurgeryGeneral Surgery
University of California Irvine, Department of SurgeryGeneral Surgery
University of WashingtonMinimally Invasive Gastroesophageal Surgery Program
Professional Positions
  • Assistant Professor — Division of Gastrointestinal Surgery, Department of Surgery, UC Irvine School of Medicine
  • Fellow — American College of Surgeons
  • Member — American College of Surgeons, Washington Chapter
  • Member — Society of American Gastrointestinal and Endoscopic Surgeons
  • Member — American Society for Metabolic and Bariatric Surgery
  • Member — American Hernia Society
  • Member — Seattle Surgical Society
Awards and Recognition
  • National Institutes of Health Summer Research Training Grant — UC Irvine School of Medicine, 2001
  • Poster of Distinction — Western Surgical Association Annual Meeting, 2009
  • Administrative Chief Resident — Department of Surgery, UC Irvine School of Medicine, 2010-2011
More Information

Dr. Marcelo W. Hinojosa is a board-certified UCI Health gastrointestinal surgeon who specializes in advanced, minimally invasive gastrointestinal surgery.

His expertise includes metabolic and weight-loss surgery, surgical management of complex esophageal and gastric disease, including gastroesophageal reflux disease (GERD), achalasia, gastric tumors and malignancies. He also has a clinical interest in the surgical management of complex hernias, including ventral, incisional, inguinal and hiatal hernias.

Hinojosa earned his medical degree at UC Irvine, followed by a residency in general surgery and a research fellowship in gastrointestinal surgery at the UC Irvine Medical Center. He went on to complete an advanced gastrointestinal minimally invasive surgical fellowship focused on esophageal, gastric and bariatric surgery at the University of Washington. He also earned a certificate of training in metabolic and bariatric surgery from the American Society for Metabolic and Bariatric Surgery.

Prior to joining UCI Health, he was an assistant professor of surgery at the University of Washington.

Hinojosa's research interests include metabolic and bariatric surgery outcomes, gastroesophageal reflux and esophageal physiology in bariatric population. He has contributed to a number of peer-reviewed publications and book chapters. He also is a fellow of the American College of Surgeons and a member of multiple national societies, including the Society of American Gastrointestinal and Endoscopic Surgeons, the American Society for Metabolic and Bariatric Surgery, the American Hernia Society and the Society for Surgery of the Alimentary Tract.

UCI Health H.H. Chao Comprehensive Digestive Disease Center
101 The City Drive South, Building 22C
Orange, CA 92868
Phone: 888-717-4463
Fax: 855-420-8515
UCI Health Surgery Services
101 The City Drive South, Pavilion 3, Bldg. 29
Orange, CA 92868
Phone: 714-456-7890
Fax: 714-456-8995