
Gastroenterologist at @HamHealthSci, Division Director at @McMasterU , Past Editor-in-Chief of #JCAG, Professor in @MacDeptMed, Full Member of @FarncombeInstit
McMaster University
Joined January 2014
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John K. Marshall MD retweeted
Join us for next session of SCOPE Rounds Gastroenterology 2026!
📌 Surgical management of IBD: What gastroenterologists should know
👨⚕️ Dr. Paulo Kotze
🗓️ September 29 at 7:00 PM ET
👉 Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Join us for our first fall session of SCOPE Rounds Gastroenterology 2026!
📌 Primary Biliary Cholangitis: Update on diagnosis and management
🗓️ September 15 at 7:00 PM ET
👨⚕️ Dr. Gideon Hirschfield
👉 Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Join Canadian community and academic gastroenterologists on Sept 18-19 in Niagara Falls for an interactive, case-based forum exploring emerging evidence, real-world challenges, and practical approaches to inflammatory bowel disease management across Canada. Learn more & register: buff.ly/HR4nnS1
Join leading Canadian gastroenterologists at the Great Lakes IBD Forum 2026 for practical, case-based discussions focused on advancing IBD care.
📍 Hilton Niagara Falls📅 September 18–19, 2026
Reserve your spot today:events.agilishealth.ca/great…
#IBD #Gastroenterology #MedicalEducation #GreatLakesIBD
I am delighted to have been elected to the University Council of @queensu Queen's University, my alma mater! Excited to represent our amazing network of alumni and participate in the governance of this unique institution!
The Division of Gastroenterology marks the academic retirement of Dr. Stephen Collins following a remarkable 45-year career at @McMasterU. From founding the Intestinal Diseases Research Institute and navigating its evolution to the @Farncombe_GI Farncombe Family Digestive Health Research Institute, supporting innovation at McMaster University Faculty of Health Sciences as Assistant Dean of Research, teaching and mentoring hundreds of trainees, and providing compassionate bedside care as a highly astute clinician, Dr. Collins has left indelible marks on our institution. Thank you! @CanGastroAssn @ontario_gastros @MacDeptMed
The @McMasterU Division of Gastroenterology bids a fond farewell to Dr. Smita Halder after 16 years of innovation, leadership and compassionate care for all of our patients with gastrointestinal disorders. Wishing her all the best as she takes on a new leadership role at Toronto Metropolitan University school of medicine! @Farncombe_GI @CanGastroAssn @ontario_gastros
John K. Marshall MD retweeted
Join us for the next session of SCOPE Rounds Gastroenterology 2026!
📌My approach to sessile serrated lesions
👨⚕️Dr. Eric Lam
🗓️ May 12 from 7:00 - 7:45 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Join us for the next session of SCOPE Rounds Gastroenterology 2026!
📌How I sequence therapy in IBD
👨⚕️Dr. Bruce Sands
🗓️April 28 from 7:00 - 7:45 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
Don’t miss the next session of SCOPE Rounds Gastroenterology 2026!
📌 Celiac disease: How to find and fix
👩⚕️Dr. Jocelyn Silvester
🗓️April 14 from 7:00 - 7:45 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
John K. Marshall MD retweeted
✨Now Accredited!✨
*Don’t miss the FIRST SCOPE Rounds Gastroenterology 2026 Session on “Endoscopic closure: When and how?” with Dr. Jeff Mosko!
📅 Tomorrow, Tuesday, March 10 at 7:00 PM ET
👉Register now: us02web.zoom.us/webinar/regi…
Congratulations to David Armstrong on well deserved recognition with the @CanGastroAssn Clinical Achievement Award. This is a huge honour and McMaster GI is proud. Presented by Frances Tse - incoming @CanGastroAssn President Elect!@McMasterU
Congratulations to @PaulMoayyedi for completing his term on the @CanGastroAssn Board, wrapping up two years as Past President. McMaster GI is proud to see its members contribute to the national GI community. The novel misspelling of his name was graciously acknowledged! @McMasterU
John K. Marshall MD retweeted
Glad to help lead this novel and groundbreaking Canadian🇨🇦 initiative to combat antimicrobial resistance!
healthsci.mcmaster.ca/mcmast…
John K. Marshall MD retweeted
The MC IBD full-day program returns on April 11, 2026, with expert-led seminars and interactive workshops on managing IBD and IMIDs throughout the pregnancy journey. A multidisciplinary event designed for clinicians across specialties. Learn more and register: buff.ly/YHxImCl
LIVE WEBINAR: IBD NOW & NEXT - Current & Emerging Treatments
Date: December 2
Time: 8:00–9:15 PM EDT
Join us for a fast-paced, expert-led session exploring the rapidly evolving treatment landscape in Inflammatory Bowel Disease (IBD), with a special focus on Ulcerative Colitis. This is a great opportunity for clinicians, researchers, and anyone involved in IBD management to stay ahead of the curve.
This webinar brings together leading clinicians who will break down where we are today, what’s coming next, and how new evidence can be translated into meaningful, patient-centred care.
Learning Objectives:
- Map the current therapeutic landscape in Ulcerative Colitis and how it’s used in day-to-day practice
- Review data from emerging mechanisms of action and how they could fit within Canadian care
- Translate clinical trials and real-world evidence into patient-centred decisions through practical case discussions
@ScopeCanMD
Heartfelt congratulations to @guthealthmd Mark Silverberg as winner of the 2025 Richard N. Fedorak Award for lifetime contributions to teaching and mentorship in IBD. Richly deserved! @getgutsycanada @UofT
Congratulations to Neeraj Narula on being recognized with the 2025 Distinguished Service Award from the Canadian IBD Research Consortium! @McMasterU @machealthsci @getgutsycanada!!!
Great start to Mentoring in IBD 2025! How does diet affect IBD and can a change I diet help? #ibdminds2025 @getgutsycanada


























