Physicians: Minimally Invasive General Surgery

Kimberly Maureen Brown, MD, FACS

Dr. Brown specializes in the treatment of benign and malignant tumors of the liver and pancreas, with an emphasis on laparoscopic and robot-assisted minimally invasive surgery. This includes pancreatic cancer, pancreatic cystic tumors, pseudocysts, and neuroendocrine tumors; primary liver tumors (hepatocellular, bile duct, and gallbladder cancer), tumors metastatic to the liver such as colorectal cancer, neuroendocrine tumors, or carcinoid tumors, and other liver tumors such as liver cysts, adenomas, and focal nodular hyperplasia (FNH).

Dr. Brown also performs general gastrointestinal surgery including the treatment of gallstones and colon cancer.

Dr. Brown is the Director of the UTMB Surgical Simulation Center, with an interest in using simulation to achieve and document competence in advanced minimally invasive and robotic surgery.
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Obos Ekhaese, D.O.

Dr. Obos Ekhaese attended Western University of Health Sciences, College of Osteopathic Medicine in Pomona, California. He completed his internship at Midwestern University, St. James Olympia Fields, Olympia Fields, and Illinois. He completed his General Surgery residency at Michigan State University, Pontiac Osteopathic Hospital, and Pontiac Michigan.

Dr. Ekhaese is certified by the American Board of Osteopathic Surgeons.

After residency, Dr. Ekhaese worked as a staff surgeon at Sarah Bush Lincoln Health Center, Mattoon, Illinois. Then he completed a one-year fellowship in minimally invasive surgery at the University of Texas Health Science Center at Houston, Houston Northwest Medical Center.

He is currently an Assistant Professor in the Department of Surgery at UTMB. His interests are in bariatric, endoscopic and laparoscopic surgery. Dr. Ekhaese is a member of the American Medical Association, American Osteopathic Association, American College of Osteopathic Surgeons, Society of American Gastrointestinal and Endoscopic Surgeons, National Medical Association, Texas Medical Association and Harris County Medical Society.
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Aakash H. Gajjar, MD

Dr. Gajjar attended medical school at the University of Texas Health Science Center in San Antonio; he did his residency at the University of Oklahoma College of Medicine, in Tulsa, Oklahoma; and a fellowship at the University of Texas Health Science Center in Houston. He is board certified by The American Board of Surgery.

Dr. Gajjar's clinical interests and skills cover colonoscopy, inflammatory bowel disease, laparoscopy, diverticular disease, rectal prolapse, fecal incontinence, hemorrhoids, colon and rectal cancer.
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Guillermo Gomez, M.D.

Dr. Guillermo Gomez received his M.D. from The Pontificia Universidad Catolica de Chile School of Medicine in Santiago, Chile. He completed his internship and residency training in Surgery, at both his alma mater and The University of Texas Medical Branch. Dr. Gomez is certified by the American Board of General Surgery. Dr. Gomez has successfully taken up several positions here at UTMB before becoming the Granville T. Hall Chair and Associate Professor in the Department of Surgery.

His main area of surgical expertise is endoscopic, laparoscopic, and robotic surgery. His current area of research is in gastrointestinal endocrinology, more specifically, the metabolism of gastrointestinal hormones including their relationships to the control of satiety and obesity. Dr. Gomez has more than 50 publications in peer reviewed scientific journals.

Dr. Gomez successfully completed the Fundamentals of Bariatric Surgery training course and the Society of American Gastrointestinal Endoscopic Surgeons (SAGES) endorsed Laparoscopic Bariatric Surgery Mini-Fellowship Program.
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