A graduate of the University of Missouri, Dr. Peter Walker earned his medical degree at Saint Louis University. He completed his residency in general surgery and a fellowship in advanced gastrointestinal minimally invasive and robotic surgery at the University of Texas Health Science Center at Houston (UTHealth) Medical School. He also completed an NIH-sponsored T-32 surgical research fellowship at UTHealth. He is board certified in general surgery, and is one of only a few surgeons who has undergone formal fellowship training in robotic gastrointestinal surgery; Dr. Walker’s primary clinical interests are benign and malignant conditions of the gastrointestinal tract. His areas of specialty care include surgery of the esophagus and stomach (including surgery for reflux/heartburn, weight loss, achalasia, hiatal hernias, ulcer disease, gastrointestinal stromal tumors, and gastric cancer), surgery of solid organs (spleen, adrenal glands, thyroid, parathyroid, pancreas, and liver), surgery of the abdominal wall and hernia surgery, including complex abdominal wall reconstruction, and colon surgery and colon cancer. He uses advanced minimally invasive techniques, including robotic, laparoscopic, and endoscopic (incision-less) approaches, whenever possible.

Dr. Walker is an assistant professor of surgery at UTHealth. He is an author or co-author of over 50 peer-reviewed manuscripts and book chapters.


Medical School
Saint Louis University, 2006
The University of Texas Health Science Center at Houston, 2013
The University of Texas Health Science Center at Houston, 2014