Speakers 2026

Digestive Health Summit 2026

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Meet the experts behind the 2026 Digestive Health Summit. From pioneering surgeons and leading gastroenterologists to innovators in hepatology, oncology, and healthcare leadership, our faculty represents the forefront of digestive disease care. Their insights, experience, and vision drive the conversations shaping tomorrow’s clinical practice.

Nadine Abi-Jaoudeh, MD

Nadine Abi-Jaoudeh, MD

UCI Health | Interventional radiologist

Latifat Akintade, MD

Latifat Akintade, MD

Kaiser Permanente | Gastroenterologist

Reed Ayabe, MD

Reed Ayabe, MD

UCI Health | Hepatobiliary surgeon

Rebecca Bennett, MD

Rebecca Bennett, MD

UCI Health | Interventional radiologist

Joseph Carmichael, MD

Joseph Carmichael, MD

UCI Health | Chief Medical Officer

Olivia Chang, MD

Olivia Chang, MD

UCI Health | Urogynecologist

April Choi, MD

April Choi, MD

UCI Health | Medical oncologist

Austin Chiang, MD, MPH

Austin Chiang, MD, MPH

Medtronic / Jefferson Health | Chief Medical Officer, Endoscopy / Gastroenterologist

Shaun Daly, MD

Shaun Daly, MD

UCI Health | GI surgeon

Frances Dang, MD

Frances Dang, MD

UCI Health | Interventional GI

Farshid Dayyani, MD, PhD

Farshid Dayyani, MD, PhD

UCI Health | Medical oncologist

Additional Information

Robert Fearn, MD

Robert Fearn, MD

UCI Health | Gastroenterologist

Phillip Gu, MD<

Phillip Gu, MD

Cedars-Sinai | Gastroenterologist

John Hong, MD

John Hong, MD

United Medical Doctors | Chief Executive Officer

Ke-Qin Hu, MD

Ke-Qin Hu, MD

UCI Health | Director of Hepatology Services

David Imagawa, MD, PhD

David Imagawa, MD, PhD

UCI Health | Chief of Division of Hepatobiliary and Pancreas Surgery, Islet Cell Transplantation

Cyrus Jahansouz, MD

Cyrus Jahansouz, MD

University of Minnesota | Colon & rectal surgeon

Laurie Johnson

Laurie Johnson

UCI Health

Zeljka Jutric, MD

Zeljka Jutric, MD

UCI Health | Hepatobiliary surgeon

William Karnes, MD

William Karnes, MD

UCI Health | Director of High-risk Program

Jaehyun Kim, MD

Jaehyun Kim, MD

UCI Health | Gastroenterologist

John Lee, MD

John Lee, MD

UCI Health | Co-director of Chao Digestive Health Institute

Steven Mills, MD

Steven Mills, MD

UCI Health | Colorectal surgeon, IBD surgical director

Sonia K. Narang

Sonia K. Narang

Harry Nguyen, DO

Harry Nguyen, DO

UCI Health | Hepatologist

Arsen Osipov, MD

Arsen Osipov, MD

Cedars-Sinai | Medical director of pancreatic cancer and multidisciplinary cancer programs

Christopher Paiji, MD

Christopher Paiji, MD

UCI Health | Interventional GI

Nimisha Parekh, MD, MPH

Nimisha Parekh, MD, MPH

UCI Health | Gastroenterologist, IBD program director

Tatyana Popkova

Tatyana Popkova

UCI Health | Chief Strategy Officer

Shravani Reddy, MD

Shravani Reddy, MD

UCI Health | Gastroenterologist

Tara Russell, MD, MPH, PhD

Tara Russell, MD, MPH, PhD

UCLA | Colorectal surgeon

Randolph Siwabessy

Randolph Siwabessy

UCI Health | Chief Financial Officer

Sid Sinha, MD

Sid Sinha, MD

Stanford | Gastroenterologist

Richard Straker, MD

Richard Straker, MD

UCI Health | Colorectal surgeon

Risha Strople, PT, DPT, PRPC

Risha Strople, PT, DPT, PRPC

Specialized PT

Valery Vilchez Parra, MD

Valery Vilchez Parra, MD

UCI Health | Colorectal surgery

Annie Wang, MD

Annie Wang, MD

UCI Health | GI surgeon

Matthew Whealon, MD

Matthew Whealon, MD

UCI Health | Colorectal surgeon

Beshoy Yanny, MD

Beshoy Yanny, MD

UCI Health | Hepatologist

Elliot Yu, MD

Elliot Yu, MD

UCI Health | Gastroenterologist

Catherine Zhu, MD

Catherine Zhu, MD

UCI Health | Colorectal surgeon