The 20 Best Gastrointestinal Bleeding Doctors Near Me in Hamilton, ON

Find the Top Gastrointestinal Bleeding Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 140 doctor with experience in Gastrointestinal Bleeding near Hamilton, ON. Of these, 120 are Experienced, 15 are Advanced and 5 are Distinguished.

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140 providers found
    Distinguished in Gastrointestinal Bleeding

    Grigorios I. Leontiadis
    Distinguished in Gastrointestinal Bleeding

    Grigorios I. Leontiadis
    Referral may be required
    Hamilton, ON, CA 

    Grigorios Leontiadis practices practicing medicine in Hamilton, Canada. Leontiadis is rated as a Distinguished expert by MediFind in the treatment of Gastrointestinal Bleeding. They are also highly rated in 7 other conditions, according to our data. Their clinical expertise encompasses Gastrointestinal Bleeding, Peptic Ulcer, Hereditary Pancreatitis, Endoscopy, and Colonoscopy.

    Distinguished in Gastrointestinal Bleeding

    Joanna C. Dionne
    Distinguished in Gastrointestinal Bleeding

    Joanna C. Dionne
    Referral may be required
    Hamilton, ON, CA 

    Joanna Dionne practices practicing medicine in Hamilton, Canada. Ms. Dionne is rated as a Distinguished expert by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Gastrointestinal Bleeding, Diarrhea, Peptic Ulcer, Toxic Megacolon, and Endoscopy.

    Distinguished in Gastrointestinal Bleeding

    Paul M. Moayyedi
    Distinguished in Gastrointestinal Bleeding

    Paul M. Moayyedi
    Referral may be required
    Hamilton, ON, CA 

    Paul Moayyedi practices practicing medicine in Hamilton, Canada. Mr. Moayyedi is rated as a Distinguished expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Indigestion, Irritable Bowel Syndrome (IBS), Viral Gastroenteritis, Endoscopy, and Colonoscopy.

    Learn about our expert tiers
    Distinguished in Gastrointestinal Bleeding

    Waleed A. Alhazzani
    Distinguished in Gastrointestinal Bleeding

    Waleed A. Alhazzani
    Referral may be required
    Hamilton, ON, CA 

    Waleed Alhazzani practices practicing medicine in Hamilton, Canada. Mr. Alhazzani is rated as a Distinguished expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Peptic Ulcer, Gastrointestinal Bleeding, Acute Respiratory Distress Syndrome (ARDS), Thrombectomy, and Aortic Valve Replacement.

    Distinguished in Gastrointestinal Bleeding

    Mark A. Crowther
    Distinguished in Gastrointestinal Bleeding

    Mark A. Crowther
    Referral may be required
    St. Joseph's Hospital, 
    Hamilton, ON, CA 

    Mark Crowther practices practicing medicine in Hamilton, Canada. Mr. Crowther is rated as a Distinguished expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Venous Thromboembolism (VTE), Mesenteric Venous Thrombosis, Antiphospholipid Syndrome, Hip Replacement, and Coronary Artery Bypass Graft (CABG).

    Advanced in Gastrointestinal Bleeding

    James D. Douketis
    Advanced in Gastrointestinal Bleeding

    James D. Douketis
    Referral may be required
    St. Joseph's Healthcare Hamilton, 
    Hamilton, ON, CA 

    James Douketis practices practicing medicine in Hamilton, Canada. Douketis is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. They are also highly rated in 9 other conditions, according to our data. Their clinical expertise encompasses Venous Thromboembolism (VTE), Deep Vein Thrombosis, Mesenteric Venous Thrombosis, Thrombectomy, and Heart Bypass Surgery.

    Advanced in Gastrointestinal Bleeding

    John G. Muscedere
    Advanced in Gastrointestinal Bleeding

    John G. Muscedere
    Referral may be required
    Kingston, ON, CA 

    John Muscedere practices practicing medicine in Kingston, Canada. Mr. Muscedere is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Pneumonia, Hospital-Acquired Pneumonia, Delirium, and Gastrointestinal Bleeding.

    Advanced in Gastrointestinal Bleeding

    Salim M. Yusuf
    Advanced in Gastrointestinal Bleeding

    Salim M. Yusuf
    Referral may be required
    30 Birge St, 
    Hamilton, ON, CA 

    Salim Yusuf practices practicing medicine in Hamilton, Canada. Mr. Yusuf is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 20 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Stroke, Heart Attack, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

    Advanced in Gastrointestinal Bleeding

    Michael L. Sey
    Advanced in Gastrointestinal Bleeding

    Michael L. Sey
    Referral may be required
    London, ON, CA 

    Michael Sey practices practicing medicine in London, Canada. Sey is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. They are also highly rated in 4 other conditions, according to our data. Their clinical expertise encompasses Gastrointestinal Bleeding, Mallory-Weiss Syndrome, Viral Gastroenteritis, Colonoscopy, and Endoscopy.

    Advanced in Gastrointestinal Bleeding

    Diane M. Ansdell-Heels
    Advanced in Gastrointestinal Bleeding

    Diane M. Ansdell-Heels
    Referral may be required
    Hamilton, ON, CA 

    Diane Ansdell-Heels practices practicing medicine in Hamilton, Canada. Ms. Ansdell-Heels is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Gastrointestinal Bleeding, Pneumonia, Pulmonary Embolism, Hip Replacement, and Leg or Foot Amputation.

    Advanced in Gastrointestinal Bleeding

    Samir C. Grover
    Advanced in Gastrointestinal Bleeding

    Samir C. Grover
    Referral may be required
    209 Victoria St, M5B 1T8, 
    Toronto, ON, CA 

    Samir Grover practices practicing medicine in Toronto, Canada. Mr. Grover is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Viral Gastroenteritis, Colorectal Polyps, Endoscopy, and Colonoscopy.

    Advanced in Gastrointestinal Bleeding

    Nicole L. Zytaruk
    Advanced in Gastrointestinal Bleeding

    Nicole L. Zytaruk
    Referral may be required
    St. Joseph's Healthcare Hamilton Research Institute, St. Joseph's Healthcare Hamilton, 
    Hamilton, ON, CA 

    Nicole Zytaruk practices practicing medicine in Hamilton, Canada. Ms. Zytaruk is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Gastrointestinal Bleeding, Toxic Megacolon, Peptic Ulcer, and Pneumonia.

    Advanced in Gastrointestinal Bleeding

    Brian M. Yan
    Advanced in Gastrointestinal Bleeding

    Brian M. Yan
    Referral may be required
    London, ON, CA 

    Brian Yan practices practicing medicine in London, Canada. Mr. Yan is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Viral Gastroenteritis, Ulcerative Colitis, Colonoscopy, and Endoscopy.

    Advanced in Gastrointestinal Bleeding

    Shane W. English
    Advanced in Gastrointestinal Bleeding

    Shane W. English
    Referral may be required
    Ottawa, ON, CA 

    Shane English practices practicing medicine in Ottawa, Canada. Mr. English is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Subarachnoid Hemorrhage, Gastrointestinal Bleeding, Traumatic Brain Injury, Peptic Ulcer, and Kidney Transplant.

    Advanced in Gastrointestinal Bleeding

    Bram Rochwerg
    Advanced in Gastrointestinal Bleeding

    Bram Rochwerg
    Referral may be required
    Box 211, 711 Concession St, 
    Hamilton, ON, CA 

    Bram Rochwerg practices practicing medicine in Hamilton, Canada. Mr. Rochwerg is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Sepsis, Acute Respiratory Distress Syndrome (ARDS), Low Blood Pressure, Thrombectomy, and Coronary Artery Bypass Graft (CABG).

    Advanced in Gastrointestinal Bleeding

    Parul N. Tandon
    Advanced in Gastrointestinal Bleeding

    Parul N. Tandon
    Referral may be required
    190 Elizabeth St, 
    Toronto, ON, CA 

    Parul Tandon practices practicing medicine in Toronto, Canada. Ms. Tandon is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Viral Gastroenteritis, Colitis, Crohn's Disease, Endoscopy, and Colonoscopy.

    Advanced in Gastrointestinal Bleeding

    Yuhong C. Yuan
    Advanced in Gastrointestinal Bleeding

    Yuhong C. Yuan
    Referral may be required
    Hamilton, ON, CA 

    Yuhong Yuan practices practicing medicine in Hamilton, Canada. Yuan is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. They are also highly rated in 18 other conditions, according to our data. Their clinical expertise encompasses Viral Gastroenteritis, Hereditary Pancreatitis, Esophagitis, Ileostomy, and Endoscopy.

    Advanced in Gastrointestinal Bleeding

    Marc Carrier
    Advanced in Gastrointestinal Bleeding

    Marc Carrier
    Referral may be required
    Ottawa, ON, CA 

    Marc Carrier practices practicing medicine in Ottawa, Canada. Mr. Carrier is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Venous Thromboembolism (VTE), Deep Vein Thrombosis, Mesenteric Venous Thrombosis, Heart Transplant, and Aortic Valve Replacement.

    Advanced in Gastrointestinal Bleeding

    Anne M. Holbrook
    Advanced in Gastrointestinal Bleeding

    Anne M. Holbrook
    Referral may be required
    Research Institute Of St Joseph's Hamilton, 
    Hamilton, ON, CA 

    Anne Holbrook practices practicing medicine in Hamilton, Canada. Ms. Holbrook is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Gastrointestinal Bleeding, Atrial Fibrillation, Venous Thromboembolism (VTE), and Long QT Syndrome.

    Advanced in Gastrointestinal Bleeding

    Jacqueline J. Bosch
    Advanced in Gastrointestinal Bleeding

    Jacqueline J. Bosch
    Referral may be required
    Hamilton, ON, CA 

    Jacqueline Bosch practices practicing medicine in Hamilton, Canada. Ms. Bosch is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Bleeding. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Gastrointestinal Bleeding, Peripheral Artery Disease, Atherosclerosis, and Stroke.

    While we make every effort to provide the best results possible, data is currently limited outside of the United States. Doctors listed may include both clinicians and researchers, and individuals relocate frequently. We recommend contacting doctors directly to confirm their location and areas of focus. Contact information is provided when available. Learn more about our expert tiers.
    Showing 1-20 of 140

    Last Updated: 06/30/2026

    What is the definition of Gastrointestinal Bleeding?

    Gastrointestinal (GI) bleeding refers to any bleeding that starts in the GI tract.

    Bleeding may come from any site along the GI tract, but is often divided into:

    • Upper GI bleeding: The upper GI tract includes the esophagus (the tube from the mouth to the stomach), stomach, and first part of the small intestine (duodenum).
    • Lower GI bleeding: The lower GI tract includes most of the small intestine, and the entire large intestine, rectum, and anus.

    When should I see a Gastrointestinal Bleeding doctor near Hamilton, ON?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Gastrointestinal Bleeding doctor near Hamilton, ON?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How do I find the best Gastrointestinal Bleeding doctor near Hamilton, ON?

    You can find a Gastrointestinal Bleeding doctor in any of the 10 largest U.S. cities by clicking below:

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    How does MediFind rank Gastrointestinal Bleeding doctors near Hamilton, ON?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Gastrointestinal Bleeding doctors near Hamilton, ON?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Gastrointestinal Bleeding doctor near Hamilton, ON?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Gastrointestinal Bleeding doctor search results page. 

    Why is it important to get a second opinion from a different Gastrointestinal Bleeding doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Gastrointestinal Bleeding doctor near Hamilton, ON?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Gastrointestinal Bleeding doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Gastrointestinal Bleeding doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Gastrointestinal Bleeding doctors near Hamilton, ON?

    Look for the filter feature on the left side of the Gastrointestinal Bleeding doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Gastrointestinal Bleeding doctor that offers video calls?

    Look for the filter feature on the left-side of the Gastrointestinal Bleeding doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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