Evan Ong, MD, FACS

Assistant Professor of Surgery

Surgical Clerkship Director

Phone Number: 
(520) 694-2873
(520) 694-0255
Short Bio: 

Evan Ong, MD, FACS, joined the department of surgery in July 2008 as an Assistant Professor of Surgery in the Section of Surgical Oncology. Dr. Ong grew up in the Upstate New York area, graduated with a BA and MA degree from Harvard University, and received his medical degree from the Albert Einstein College of Medicine in the Bronx, NY. He then matched his general surgery residency at the University of Illinois at Chicago-Cook County Program. During his surgical residency, Dr. Ong spent an additional 2 years as a postdoctoral research fellow in the Department of Pharmacology studying the molecular and cellular mechanisms of inflammation and completed a Master of Science degree. From there, Dr. Ong matched into a surgical oncology fellowship at the first cancer center of the United States, Roswell Park Cancer Institute in Buffalo, NY.  After completing his fellowship, he was recruited to join the Surgical Oncology Section at the University of Arizona.

Clinical Information
Clinical Focus: 

Dr. Ong’s clinical practice focuses on gastrointestinal cancers with particular interest in treatment options for regional and metastatic disease. He offers state-of-the-art technology such as laparoscopic liver resection, microwave and bipolar radiofrequency ablation as well as Intraperitoneal Hyperthermic Chemoperfusion (IPHC), a treatment option for cancers that have disseminated to the peritoneal cavity.

Clinical Practice Sites: 
The University of Arizona Cancer Center - North Campus
The University of Arizona Cancer Center - Orange Grove
Research Information
Research Program: 
2. Cancer Imaging
Member Status: 
Associate Member
Year of Membership Acceptance: 
Summary of Research Activity: 

Dr. Ong’s research includes studying the role of the immune system in the development and progression of gastrointestinal cancers. Through his co-appointment in the Geriatrics department, Dr. Ong is currently developing a geriatric scoring system to predict surgical outcomes in the elderly patient.

Selected Publications: 

Greenstein SM, Kim D, Principe A, Ong E, Chinw Glicklich D, Schechner R, Tellis VA. Renal transplantation in a heterogeneous population: the thirty year Montefiore Medical Center experience. Clin Transpl. 1998: 187-93.

Greenstein SM, Delrio M, Ong E, Feuerstein D, Schechner R, Kim D, Corey H, Kaskel R, Tellis VA, Moritz ML. Plasmapheresis treatment for recurrent focal sclerosis in pediatric renal allografts. Pediatr Nephrol. 2000; 14 (12):1061-5.
Babcock TA, Novak T, Ong E, Jho DH, Helton WS, Espat NJ. Modulation of LPS-stimulated macrophage TNF production by ω-3 fatty acid is associated with differential cyclooxygenase-2 (COX-2) enzyme translation and is independent of interleukin-10 (IL-10). Journal of Surgical Research 2002 Sep; 107 (1):135
Ong E, Helton WS, Espat NJ.Operative Experience of U.S. General Surgery Residents: Liver and Pancreas 1989-2001.Journal of Gastrointestinal Surgery. 2003 Feb;7(2):311
Ong E, Gao XP, Xu N, Predescu D, Rahman A, Broman MT, Jho DH, Malik AB. E. coli Pneumonia Induces CD-18 Independent Airway Neutrophil Transalveolar Migration In the Absence of Increased Lung Vascular Permeability. American Journal of Physiology: Lung Cellular and Molecular Physiology. 2003 Oct;285(4):L879-88
Espat NJ, Ong E, Helton WS, Nyhus LM. 1990-2001 U.S. General Surgery Chief Resident Gastric Surgery operative Experience: Analysis of Paradigm Shift. Journal of Gastrointestinal Surgery. 2004 May-Jun;8(4):471-8
Ong E,Gao XP, Predescu D, Broman M, Malik AB. Phosphatidylinositol 3-Kinase Regulation of Neutrophil Extravasation: Role in Lung Inflammation. American Journal of Physiology: Lung Cellular and Molecular Physiology. 2005 December; 289 (6): L1094-103.
Ong E, Jho D, Helton WS, Espat NJ. Surgisis®-assisted Delayed Repair of a Complex Bile Duct Injury after Laparoscopic Cholecystectomy. Journal of Gastrointestinal Surgery. 2006 February; 10(2): 202-6.
Sharif S, Broman M, Babcock T, Ong E, Jho D, Rudnicki M, Helton WS, Espat NJ. A Priori Dietary {Omega}-3 Lipid Supplementation Results in Local Pancreatic Macrophage and Pulmonary Inflammatory Response Attenuation in a Model of Experimental Acute Edematous Pancreatitis (AEP). Journal of Parenteral and Enteral Nutrition. 2006 July-August; 30(4): 271-6.
Jho DH, Jho DJ, Chejfec G, Ahn M, Ong E, Espat NJ. Primary biliary B-cell lymphoma of the cystic duct causing obstructive jaundice. The American Surgeon. 2007 May; 73(5): 508-10.
Ong EAlassas M, Bullard Dunn KM, Rajput A. Colorectal Cancer Surgery in the Elderly: Acceptable Morbidity? American Journal of Surgery. 2008 Mar; 195(3):344-8; discussion 348.
Brovkovych V, Gao XP, Ong E,Brovkovych S, Brennan ML, Su X, Hazen SL, Malik AB, Skidgel RA. Augmented iNOS Expression and Increased NO Production Reduce Sepsis-Induced Lung Injury and Mortality in Myeloperoxidase-Null Mice. American Journal of Physiology: Lung Cellular and Molecular Physiology. 2008 Jul;295(1):L96-103.
Ong E, Alassas M, Bogner PN, Bullard Dunn KM, Chey WY, Gibbs J. Total Gastrectomy for Gastric Dysplasia in a patient with Attenuated Familial Adenomatous Polyposis Syndrome. The Journal of Clinical Oncology 2008 Jul 20;26(21):3641-2.
Bio sketch: 
Professional Information
Board Certifications: 

2007, American Board of Surgery - General Surgery

Professional Affiliations: 

Alpha Omega Alpha Honors Medical Society
American College of Surgeons
American Hepato-Pancreato-Biliary
American Society of Clinical Oncology
Association for Academic Surgery
Sigma Xi Honors Scientific Research Society
Society of Surgical Oncology
Southwest Oncology Group
Southwestern Surgical

Warren H. Cole Surgery Society
2008  Associate Reynolds Scholar in Aging

2008  Roswell Park Cancer Institute, Thoracic Surgery Achievement Award
2008  University of Buffalo Surgical Research Forum, 3rd place prize (poster presentation)
2006  Alpha Omega Alpha Honors Medical Society, Member Inductee - Resident
2005  Alpha Omega Alpha Clinical Teaching Award in Surgery
2005  American Hepato-Pancreatico-Biliary Association -“Poster of Distinction”
2004  Ray and Joan Kroc Academic Scholar Surgery Award
2001-2003  Ruth L. Kirschstein National Research Service Fellowship Award
2003  University of Illinois, Surgical Research Forum Award- 1st place prize
2002  Sigma Xi Honors Scientific Research Society, Associate Member Inductee
2002  American Society for Pharmacology and Experimental Therapeutics, 1st place overall presentation (Post-Doctoral division)2002  Sigma Xi Research Forum, 3rd place prize (oral presentation)
2001  Living Institute for Surgical Sciences Research Award
1994   Harvard College Scholarship Award
Academic Information
Roswell Park Cancer Institute, Buffalo, NY
University of Illinois at Chicago Medical Center, Chicago, IL
Medical School: 
Albert Einstein College of Medicine, Bronx, NY
Master's Degree: 
University of Illinois at Chicago Medical Center, Chicago, IL
Undergraduate School: 
Harvard University, Cambridge, MA