Other Activities

Member, The American Society of Colon and Rectal Surgeons

Member, American College of Surgeons

Member, Society of American Gastrointestinal and Endoscopic Surgeons

Member, Association for Academic Surgery

EDUCATION & TRAINING

Fellowship, Colon and Rectal Surgery, Oregon Health & Science University, Portland, OR, 2020

Residency, General Surgery, Houston Methodist Hospital, Department of Surgery, Houston, TX, 2019

Internship, General Surgery, The University of Texas Medical School at Houston, Houston, TX, 2015

MD, Facultad de Medicina Universidad Autonoma de Tamaulipas, Tampico, Mexico, 2010

BOARD CERTIFICATION

General Surgery

Colon & Rectal Surgery

HONORS

Resident of the Year Award, Department of Surgery, Houston Methodist Hospital, Houston, TX, 2018-2019

Senior Resident ABSITE Award, Department of Surgery, Houston Methodist Hospital, Houston, TX, 2018-2019

Raleigh Ross Scholarship Award, Texas Surgical Society, Fort Worth, TX, 2017-2018

Senior Resident ABSITE Award, Department of Surgery, Houston Methodist Hospital, Houston, TX, 2017-2018

Awarded for Intern Class Highest Score of the American Board of Surgery In-Service Exam (ABSITE), The University of Texas Medical School at Houston, General Surgery Residency Program, 2014-2015

Surgical Intern of the Year Award, The University of Texas Medical School at Houston, General Surgery Residency Program, 2014-2015

Portland Monthly Magazine, “Top Doctors,” 2023, 2024, 2025

Publications

Pedraza R, Muniz-Castro J, Snyder MJ, Bailey HR. The Effect on Surgical Specialty on Elective Colectomy Outcomes: Single-Institution National Surgical Quality Improvement Project (NSQIP) Analysis. Rev Mex de Cirugia Colorrectal, 1(2).

Pedraza R, Siddhartan R. Resident’s Corner. Management of Malignant Colon Polyps. Dis Colon Rectum. 2021 March; 3: 262-266 (PMID: 33337601)

Keller DS, Pedraza R, Tahilramani RN, Flores-Gonzalez JR, Ibarra S, Haas EM. Impact of Long-acting Local Anesthesia on clinical and Financial Outcomes in Laparoscopic Colorectal Surgery. Am J Surg. 2017 Jul; 214 (1): 53-58 (PMID: 28624028)

Keller DS, Pedraza R, Flores-Gonzalez JR, LeFave JP, Mahmood A, Haas EM. The Current Status of Emergent Laparoscopic Colectomy: A Population-Based Study of Clinical and Financial Outcomes. Surg Endosc. 2016 Aug; 30(8):3321-3326 (PMID: 26490770)

Haas EM, Pedraza R, Nieto J, Malave V. Single-incision Laparoscopic Right Hemicolectomy: Inferior-to-Superior Approach With Intracorporeal Anastomosis. Surg Laparosc Endosc Percutan Tech. 2014; 24(6): 226-227 (PMID: 24710251)

Pedraza R, Nieto J, Ibarra S, Haas EM. Pelvic Muscle Rehabilitation: A Standardized Protocol for Pelvic Floor Dysfunction. Adv Urol. 2013 (PMID: 23736897)

Haas EM, Aminian A, Nieto J, Pedraza R, Martinez C, Patel CB, Pickron TB. Minimally Invasive Colorectal Surgery in the Morbidly Obese: Does High Body Mass Index Lead to Poorer Outcomes? Surgery Curr Res. 2013. 3:149. (doi: 10.4172/2161-1076.1000149)

Pedraza R, Aminian A, Nieto J, Faraj C, Pickron TB, Haas EM. Single-Incision Laparoscopic Colectomy for Cancer: Short-Term Outcomes and Comparative Analysis. Minim Invasive Surg. 2013. (PMID: 23766897)

Haas EM, Pedraza R. Laparoscopic and Robotic Colorectal Surgery: A Comparison and Contrast. Semin Colon Rectal Surg. 2013;24:19-23. (doi:10.1053/j.scrs.2912.10.006)

Haas EM, Pedraza R, Ragupathi M, Mahmood A, Pickron TB. Laparoscopic Primary Colorrhaphy for Acute Iatrogenic Perforations During Colonoscopy. Minim Invasive Surg. 2012. (PMID: 23476761)

Pedraza R, Ragupathi M, Martinez T, Haas EM. Robotic-Assisted Laparoscopic Primary Repair of Acute Iatrogenic Colonic Perforation: Case Report. Int J Med Rob. 2012; 8(3): 375-378. (PMID: 22736571)

Pedraza R, Haas EM. Minimally Invasive Colorectal Surgery. Cir Cir. 2012;80:1-2 (PMID: 22472145)

Pedraza R, Ramos-Valadez DI, Haas EM. Robotic-Assisted Laparoscopic Surgery of the Colon and Rectum: Literature Review. Cir Cir 2011;79:384-391 (PMID: 21951893)

Cruz RA, Ragupathi M, Pedraza R, Pickron TB, Le AT, Haas EM. Minimally Invasive Approaches for the Management of ‘Difficult’ Colonic Polyps. Diagn Ther Endosc 2011 (PMID: 21747655)

Pedraza R, Patel CB, Ramos-Valadez DI, Haas EM. Robotic-Assisted Laparoscopic Surgery for Restorative Proctocolectomy with Ileal J Pouch-Anal Anastomosis. Minim Invasive Ther Allied Technol. 2011; 20(4): 234-239 (PMID: 21417830)

Ragupathi M, Ramos-Valadez DI, Pedraza R, Haas EM. Robotic-Assisted Single-Incision Laparoscopic Partial Cecectomy. Int J Med Robot 2010;6:362-367 (PMID: 20665713)

Book Chapters:

Haas EM, Pedraza R: Robotic Hybrid Low Anterior Resection. In: Keith KC et al, Robotics in General Surgery. Springer 2014. ISBN 9781461487388

Pedraza R, Haas EM: Sigmoid Colectomy: Single Incision Laparoscopic Technique. In: Mulholland MW et al, Operative Techniques in Surgery. Wolters Kluwer Health/Lippincott Williams & Wilkins 2014. ISBN 9781451186314

Pedraza R, Haas EM. Abdominoperineal Resection: Robotic-Assisted Laparoscopic Technique. In: Mulholland MW et al, Operative Techniques in Surgery. Wolters Kluwer Health/Lippincott Williams & Wilkins 2014. ISBN 9781451186314.

Pedraza R, Keller DS, Haas EM. Emergent Laparoscopic Colorectal Surgery. In Ross H et al, Minimally Invasive Approaches for Colon and Rectal Disease: Techniques and Best Practices. Springer 2014. ISBN 9781493915804

Pedraza R, Faraj C, Haas EM. Sigmoid Colectomy and Left Hemicolectomy: Single-Port Laparoscopic Approach. In Bardakcioglu O et al, Advanced Techniques in Minimally Invasive and Robotic Colorectal Surgery. ISBN 9781489975300

Pedraza R, Haas EM. Sigmoid Colectomy and Left Hemicolectomy: Robotic Approach. In Bardakcioglu O et al, Advanced Techniques in Minimally Invasive and Robotic Colorectal Surgery. ISBN 9781489975300