Gastroenterology Fellowship - Current Fellows

Nael Haddad, MD

Medical School: University of Jordan Faculty of Medicine, Jordan
Residency: Internal Medicine, University of Texas Health Center at San Antonio
Areas of Interest: Esophageal motility disorders, high resolution manommetry, GI malignancies and Inflammatory bowel disease.
Hobbies: Biking, soccer, video games and hiking

Paul Muna-Aguon, MD
Chief Fellow

Medical School: University of Hawaii John A. Burns School of Medicine
Residency: Internal Medicine, University of Arizona College of Medicine – Phoenix
Area of Interest: Advanced endoscopy 
Hobbies: International traveling, spending time with my family, playing with my daughters

Sakolwan Suchartlikitwong, MD

Medical School: Chulalongkorn University Faculty of Medicine, Thailand
Residency: Internal Medicine, Texas Tech University Health Sciences Center
Areas of Interest: Colon cancer screening, inflammatory bowel disease
Hobbies: Painting, kickboxing, hiking,  cooking and baking

Mahmoud Bayoumi, MD, MPH

Medical School: University of Cairo Faculty of Medicine
Residency: Internal Medicine, University of Tennessee College of Medicine

I was born and raised in Egypt and came to US during my final year of medical school. I participated in electives at UAB and University of Texas- San Antonio followed by an international medical consultant position in Johns Hopkins international office. I then moved to Memphis for my internal medicine residency at the University of Tennessee, during which I also finished a 2-year master's program in epidemiology and public health.

Kelly Zucker, DO

Medical School: Western University of Health Sciences College of Osteopathic Medicine of the Pacific – Lebanon Campus
Residency: Internal Medicine, University of Arizona College of Medicine – Phoenix
Areas of Interest: I have been interested in Gastroenterology for many years and love combination of clinical pathology and procedures. I am particularly interested in the field of hepatology, and possibly pursuing a transplant hepatology fellowship.
Hobbies: In my spare time, my hobbies include hiking, biking, board games and anything sci-fi related!

Brian Fung, MD

Medical School: University of California, Los Angeles, School of Medicine
Residency: Internal Medicine, UCLA Medical Center
Areas of Interest: One of the reasons why I chose to specialize in gastroenterology is because I believe that gastrointestinal health is a core component of one's overall health. Many gastrointestinal diseases, both mild and severe, can significantly impact our daily lives. I am grateful for the privilege of being in such an exciting and fast-growing field where I have the opportunity to meaningfully improve patients' quality of life.
Hobbies: Outside of medicine, I enjoy taking photos, playing the violin and piano, and solving jigsaw puzzles.

Victor Arce Gutierrez, MD

Medical School: University of Arizona College of Medicine – Phoenix
Residency: University of Colorado
Area of Interest: Advanced endoscopy
Hobbies: Hiking, grilling, trying out craft brews

Paul Gomez, MD

Medical School: Drexel University College of Medicine
Residency: Internal Medicine, University of Arizona College of Medicine – Phoenix (Chief Resident)
Areas of Interest: Colorectal cancer screening, IBD, advanced endoscopy
Hobbies: Cooking, trying new restaurants, craft beer, hiking, skiing

Natasha Narang, DO

Medical School: Arizona College of Osteopathic Medicine at Midwestern University
Residency: University of Arizona College of Medicine – Phoenix
Areas of Interest: Inflammatory bowel disease, gut microbiome research, quality improvement
Hobbies: Yoga, painting, traveling, going to concerts/music festivals