Guillermo Portillo, MD

Patient Satisfaction Survey

Overall Satisfaction
4.8 out of 5
153 Ratings

Medical Education/Training

  • Fellowships – Bariatric Surgery and Laparoscopic/Advanced Gastrointestinal Surgery, University of Rochester Medical Center, Highland Hospital, Rochester, NY; Advanced Laparoscopic and Minimally Invasive Surgery (research fellowship), Texas Endosurgery Institute, San Antonio.
  • Residencies & Internships – General Surgery, University of Texas Health Science Center at San Antonio; General Surgery, Universidad Nacional Autonoma DeMexico in Mexico City, La Raza National Medical Center Hospital.
  • Medical School - Universidad De La Salle, Mexico City.
  • Board Certified by American Board of Surgery

Special Interests

Board certified in general surgery, Dr. Guillermo Portillo is a dual fellowship trained surgeon with decades of experience. Dr. Portillo is bilingual in English and Spanish, and has practiced medicine in South Texas, New York and Mexico. He is highly regarded for his skill as a general surgeon and leadership capabilities, having served as chief resident at hospitals in Mexico City and San Antonio.

Professional Affiliations

  • American College of Surgery, Associate member
  • American Medical Association
  • Mexican Board of General Surgery
  • Mexican Association of General Surgeons
  • Federation of Latin-American Endoscopic Surgeons
  • World Journal of Gastroenterology, Editorial Board

The Benefits of Weight-loss Surgery

Patient Ratings & Comments

The Patient Rating score is an average of all responses to provider related questions on our independently administered Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Provider showed concern
Friendliness/courtesy of CP
Provider explained things clearly
CP spoke using clear language
Provider included you in decisions
Patients' confidence in CP
Likelihood of recommending this provider


Comments are gathered from our Patient Satisfaction Survey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.