Willis Parsons, M.D.
Course Director, Medical Director
Dr. Parsons earned his medical degree from Vanderbilt University in Nashville, Tennessee. He completed a residency and fellowship at Brigham and Women’s Hospital in Boston, followed by an advanced endoscopy fellowship at Maine Medical Center, Portland. Currently he is the Medical Director of the Gastroenterology Center at Northwest Community Hospital (NCH), Arlington Heights, Illinois, specializing in advanced interventional GI procedures and the management of GERD and pancreaticobiliary disease. He has hosted over 150 live endoscopy courses and has performed more than 35,000 advanced endoscopic procedures.

Christopher Chapman, M.D.
Guest Speaker
Dr. Chapman earned his medical degree from Johns Hopkins University School of Medicine and completed his residency and fellowship at The University of Chicago. He has been investigating and evaluating interventional endoscopic techniques and tools used to treat gastrointestinal disorders and obesity. His research has been published in several peer-reviewed journals including the Lancet, Gastroenterology, Gastrointestinal Endoscopy and Clinical Endoscopy. He is an Assistant Professor of Medicine, Director of Endoscopy, Director of Bariatric and Metabolic Endoscopy at Rush University.

Vivek Kaul, MD, FACG, FASGE, AGAF, NYSGEF
Guest Speaker
Dr Vivek Kaul is the Segal-Watson Professor of Medicine (and former Division Chief) in the Gastroenterology & Hepatology Division at the University of Rochester Medical Center. His focus is Therapeutic Endoscopy, Interventional Endoscopic Ultrasound, advanced ERCP, and esophageal endotherapy for Barrett’s & Esophageal Cancer. He is a PI and/or co-investigator on several trials in endoscopy, pancreatic and esophageal disease. Dr. Kaul serves on several national committees with the ASGE and the ACG. He is Chair of the ASGE Reimbursement Committee and Chair of the World Gastroenterology Organization’s Endoscopy Committee. He serves on the WGO Governing Council and will be the incoming WGO Secretary General starting Jan 2024. Dr. Kaul is the alternate ASGE RUC advisor to the AMA and serves on several task forces including the ACG GI-On Demand task force, ACG AI task force, ACG Ergonomics task force, and the ASGE advanced endoscopy subspecialty certification task force. He is a member of the WGO Global Climate Change & Green Endoscopy Working Group. Dr. Kaul is a reviewer for several journals, and has published extensively in the field of interventional endoscopy among other aspects of Gastroenterology.

Natalie Cosgrove, M.D.
Guest Speaker
Natalie Cosgrove is an interventional endoscopist at the Advent Health Orlando Center for Interventional Endoscopy (CIE), where she is also the Medical Director of Clinical Quality and Safety in Gastroenterology. She received her doctorate of medicine at Temple University School of Medicine and did her internal medicine residency at the University of Virginia. She completed her gastroenterology fellowship at Thomas Jefferson University in Philadelphia, Pennsylvania, and interventional endoscopy training at Washington University in St. Louis. Her main clinical interests include complex pancreaticobiliary diseases, management of pancreatic fluid collections, endo-hepatology, and patient safety and quality improvement.

Andy Tau, M.D.
Guest Speaker
Dr. J. Andy Tau graduated from Harvard and completed all his medical and GI training at Baylor College of Medicine in the Texas Medical Center (Houston, Texas). Dr. Tau was awarded the Travis County Medical Society Ruth M. Bain Young Physician of the Year in 2021 as voted on by fellow physicians. Dr. Tau is published in recognized medical journals including Gastroenterology and Gastrointestinal Endoscopy. He is currently a partner at Austin Gastroenterology, a GI Hospitalist, and the Ascension Seton Network Chief of Gastroenterology in Austin, Texas. His special interests include hemostasis, endoscopic vacuum therapy of perforations, and social media-based learning via #GITwitter (@DrBloodandGuts).

Martina Santiago, DNP, APRN, FNP-BC
Guest Speaker
Martina Santiago, APN is a gastroenterology nurse practitioner of 9 years at Northwest Community Hospital and works collaboratively with Dr. Parsons. She has a special interest in esophageal disorders and had previously worked as the GERD navigator for NCH. She completed her schooling and training at Rush University Medical Center in Chicago. She is a returning speaker of this conference and is excited for the addition of the advanced practice provider education.

Salmaan Jawaid, M.D.
Guest Speaker
Dr Jawaid completed medical school at Marshall University SOM and then finished his Internal Medicine-Pediatrics residency at University of Massachusetts Medical Center. He stayed on at University of Massachusetts for General GI fellowship before he moved South to University of Florida to complete an 18-month Combined Advanced Endoscopy-3rd Space Endoscopy Fellowship. He then moved back to his hometown, Houston, TX and joined as faculty at Baylor College of Medicine. He has been an Assistant Professor of Medicine at Baylor College of Medicine for 4.5 years and now serves as the Program Director for the Advanced Endoscopy Fellowship and the Associate Program Director for the general GI fellowship. He also will be the Program Director for the upcoming Submucosal Endoscopy Fellowship. He has performed over 300 Esophageal and Gastric POEM along with over 250 Colon, Esophageal, and Gastric ESD. In addition, he has developed a 3rd space endoscopy program at Michael E Debakey VA hospital and has taught/proctored over 40 gastroenterologists within the field of 3rd space endoscopy. He has authored over 100 publications within submucosal endoscopy and currently has 2 industry sponsored grants evaluating innovative submucosal endoscopy technology.

Allison Moser, MSN, APRN, FNP-BC
Guest Speaker
Allison Moser has been a nurse practitioner for 10 years, with the past 6 years dedicated to specializing in hepatology. She currently serves as the Lead Advanced Practice Provider of Solid Organ Transplant at Rush University Medical Center in Chicago, IL. She has been a member of the Illinois Board of Directors for the American Liver Foundation (ALF) and has co-chaired the Associate Medical Advisory Committee (AMAC). Additionally, she serves as faculty for Gastroenterology & Hepatology Advanced Practice Providers (GHAPP) and is a member of the American Association for the Study of Liver Diseases (AASLD) Associates Committee.

Sarah Enslin, PA-C
Guest Speaker
Sarah Enslin, PA-C, is a Physician Assistant at the University of Rochester Medical Center in Rochester, NY. A graduate of Rochester Institute of Technology, she has over 16 years of experience as a practicing PA. She serves as the Advanced Practice Provider Manager for the University Medicine Service Line and co-leads the Division of Gastroenterology and Hepatology APP group. In additional to her administrative duties, she maintains a robust clinical practice with an interest in hepato-pancreaticobiliary disease & GI-Oncology. Sarah serves on several national GI society committees. She is current Chair of the American College of Gastroenterology’s (ACG) APP Committee and a member of Gastroenterology Hepatology Advanced Practice Provider (GHAPP) Professional Development Committee, ACG Membership Committee, the American Society for Gastrointestinal Endoscopy (ASGE) Practice Operations Committee and the American Foregut Society (AFS) Clinical Practice Committee. Additionally, she serves on the editorial boards of Innovations in Gastrointestinal Endoscopy (iGIE) and Gastroenterology and Endoscopy News. Sarah lectures at the Rochester Institute of Technology PA Program, precepts APP students from multiple colleges and universities in Upstate NY and is a sought-after speaker regionally and nationally. She has several peer-reviewed publications to her credit and is involved in clinical research projects.

Simon Lo, M.D.
Cedars Sinai Medical Center, Los Angeles, CA
Dr. Simon K. Lo is a distinguished gastroenterologist specializing in pancreatic and biliary diseases. He serves as the Director of Endoscopy and Pancreaticobiliary Research at Cedars-Sinai Medical Center and is a Clinical Professor of Medicine at the UCLA David Geffen School of Medicine. With over 40 years of experience, Dr. Lo is an expert in advanced endoscopic techniques, including ERCP and endoscopic ultrasound, with a focus on pancreatitis, pancreatic cancer, and bile duct disorders. A respected researcher and educator, he has contributed extensively to peer-reviewed journals such as Gastroenterology, Gastrointestinal Endoscopy, and Annals of Surgery. Dr. Lo is an active member of leading professional societies and is dedicated to advancing the multidisciplinary approach to pancreatic cancer diagnosis and treatment.

Amy Stewart, CRNP
Amy Stewart, NP is the lead Advanced Practice Provider for her division of Capital Digestive Care in Washington, DC. She manages the clinical and prior authorization teams for their in-office infusion center, which infuses more than 400 IBD patients each month. In 2024, Amy was awarded the American College of Gastroenterology (ACG) APP Outstanding Research Award, Presidential Poster Award, and Outstanding Poster Presentation for an abstract on prior authorization and drug initiation times for IBD advanced therapies. She is the 2025 recipient of the State Award for Outstanding Contributions from the American Association of Nurse Practitioners for the District of Columbia. Amy serves as the current vice-chair of the American College of Gastroenterology APP Committee, leads the new mentoring sub-committee, and is on the GHAPP (GI & Hepatology Advanced Practice Provider) Education Committee. Amy is passionate about APP education and excellent patient-centered care and speaks nationally and regionally.