The 20 Best Gastrointestinal Fistula Doctors Near Me in Ontario, CA

Find the Top Gastrointestinal Fistula Experts and Specialists

Last Updated: 06/30/2026

Save doctors for later
Sign Up
Not sure about your diagnosis?
Check Your Symptoms
Already have a doctor?
Find A Second Opinion

MediFind found 99 doctor with experience in Gastrointestinal Fistula near Ontario, CA. Of these, 91 are Experienced and 8 are Advanced.

Location
LocationClose
99 providers found
    Advanced in Gastrointestinal Fistula

    Julie H. Hallet
    Advanced in Gastrointestinal Fistula

    Julie H. Hallet
    Referral may be required
    2075 Bayview Avenue, M4N 3M5, 
    Toronto, ON, CA 

    Julie Hallet practices practicing medicine in Toronto, Canada. Ms. Hallet is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Neuroendocrine Tumor, Pancreatic Islet Cell Tumor, Pancreatic Cancer, Hepatectomy, and Hepato-Pancreato-Biliary Surgery.

    Advanced in Gastrointestinal Fistula

    Sudheer K. Vuyyuru
    Advanced in Gastrointestinal Fistula

    Sudheer K. Vuyyuru
    Referral may be required
    London, ON, CA 

    Sudheer Vuyyuru practices practicing medicine in London, Canada. Vuyyuru is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. They are also highly rated in 8 other conditions, according to our data. Their clinical expertise encompasses Crohn's Disease, Viral Gastroenteritis, Hemorrhagic Proctocolitis, Ileostomy, and Endoscopy.

    Advanced in Gastrointestinal Fistula

    Deepak Dath
    Advanced in Gastrointestinal Fistula

    Deepak Dath
    Referral may be required
    ON, CA 

    Deepak Dath practices practicing medicine in Canada. Mr. Dath is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Fistula and Pancreaticoduodenectomy.

    Learn about our expert tiers
    Advanced in Gastrointestinal Fistula

    Leyo Ruo
    Advanced in Gastrointestinal Fistula

    Leyo Ruo
    Referral may be required
    711 Concession St, 
    Hamilton, ON, CA 

    Leyo Ruo practices practicing medicine in Hamilton, Canada. Ruo is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Gastrointestinal Fistula, Liver Cancer, Colorectal Cancer, Pancreaticoduodenectomy, and Pancreatectomy.

    Advanced in Gastrointestinal Fistula

    Guillaume Martel
    Advanced in Gastrointestinal Fistula

    Guillaume Martel
    Referral may be required
    451 Smyth Rd, K1H 8 M5, 
    Ottawa, ON, CA 

    Guillaume Martel practices practicing medicine in Ottawa, Canada. Mr. Martel is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Cholangiocarcinoma (Bile Duct Cancer), Liver Cancer, Gastrointestinal Fistula, Hepatectomy, and Hepato-Pancreato-Biliary Surgery.

    Advanced in Gastrointestinal Fistula

    Priscilla P. Chiu
    Advanced in Gastrointestinal Fistula

    Priscilla P. Chiu
    Referral may be required
    Toronto, ON, CA 

    Priscilla Chiu practices practicing medicine in Toronto, Canada. Ms. Chiu is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 13 other conditions, according to our data. Her clinical expertise encompasses Congenital Lobar Emphysema, Omphalocele, Umbilical Hernia, Ileostomy, and Endoscopy.

    Advanced in Gastrointestinal Fistula

    Fady K. Balaa
    Advanced in Gastrointestinal Fistula

    Fady K. Balaa
    Referral may be required
    Ottawa, ON, CA 

    Fady Balaa practices practicing medicine in Ottawa, Canada. Mr. Balaa is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Fistula, Liver Cancer, Gallbladder Cancer, Pancreaticoduodenectomy, and Hepato-Pancreato-Biliary Surgery.

    Advanced in Gastrointestinal Fistula

    Anne M. Griffiths
    Advanced in Gastrointestinal Fistula

    Anne M. Griffiths
    Referral may be required
    555 University Ave, M5G 1X8, 
    Toronto, ON, CA 

    Anne Griffiths practices practicing medicine in Toronto, Canada. Ms. Griffiths is rated as an Advanced expert by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Crohn's Disease, Viral Gastroenteritis, Colitis, Endoscopy, and Colonoscopy.

    Experienced in Gastrointestinal Fistula

    David H. Birnie
    Experienced in Gastrointestinal Fistula

    David H. Birnie
    Referral may be required
    40 Ruskin Street, 
    Ottawa, ON, CA 

    David Birnie practices practicing medicine in Ottawa, Canada. Mr. Birnie is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Sarcoidosis, Cardiomyopathy, Atrial Fibrillation, Heart Block, and Cardiac Ablation.

    Experienced in Gastrointestinal Fistula

    Sheldon M. Singh
    Experienced in Gastrointestinal Fistula

    Sheldon M. Singh
    Referral may be required
    Toronto, ON, CA 

    Sheldon Singh practices practicing medicine in Toronto, Canada. Mr. Singh is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Fetal Alcohol Syndrome (FAS), Cardiac Tamponade, Cardiac Ablation, and Pacemaker Implantation.

    Experienced in Gastrointestinal Fistula

    Katlin I. Mallette
    Experienced in Gastrointestinal Fistula

    Katlin I. Mallette
    Referral may be required
    Ottawa, ON, CA 

    Katlin Mallette practices practicing medicine in Ottawa, Canada. Ms. Mallette is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. Her clinical expertise encompasses Gastrointestinal Fistula, Bile Duct Obstruction, Chronic Pancreatitis, Pancreaticoduodenectomy, and Endoscopy.

    Experienced in Gastrointestinal Fistula

    Tom A. Kovesi
    Experienced in Gastrointestinal Fistula

    Tom A. Kovesi
    Referral may be required
    401 Smyth Rd, 
    Ottawa, ON, CA 

    Tom Kovesi practices practicing medicine in Ottawa, Canada. Kovesi is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Tracheoesophageal Fistula, Esophageal Atresia, Gastrointestinal Fistula, and Bronchitis.

    Experienced in Gastrointestinal Fistula

    Mary-louise C. Greer
    Experienced in Gastrointestinal Fistula

    Mary-louise C. Greer
    Referral may be required
    555 University Ave, M5G 1X8, 
    Toronto, ON, CA 

    Mary-louise Greer practices practicing medicine in Toronto, Canada. Ms. Greer is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Li-Fraumeni Syndrome, Crohn's Disease, DICER1 Syndrome, Viral Gastroenteritis, and Small Bowel Resection.

    Experienced in Gastrointestinal Fistula

    Thomas A. Kovesi
    Experienced in Gastrointestinal Fistula

    Thomas A. Kovesi
    Referral may be required
    Ottawa, ON, CA 

    Thomas Kovesi practices practicing medicine in Ottawa, Canada. Mr. Kovesi is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Congenital Tracheomalacia, Tracheoesophageal Fistula, Tracheobronchomalacia, and Gastrointestinal Fistula.

    Experienced in Gastrointestinal Fistula

    Madeline Lemke
    Experienced in Gastrointestinal Fistula

    Madeline Lemke
    Referral may be required
    London, ON, CA 

    Madeline Lemke practices practicing medicine in London, Canada. Ms. Lemke is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Gastrointestinal Fistula, Appendicitis, Liver Cancer, Pancreaticoduodenectomy, and Hepatectomy.

    Experienced in Gastrointestinal Fistula

    Thomas D. Walters
    Experienced in Gastrointestinal Fistula

    Thomas D. Walters
    Referral may be required
    555 University Ave, M5G 1X8, 
    Toronto, ON, CA 

    Thomas Walters practices practicing medicine in Toronto, Canada. Mr. Walters is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Crohn's Disease, Ulcerative Colitis, Colonoscopy, and Endoscopy.

    Experienced in Gastrointestinal Fistula

    Simon Parlow
    Experienced in Gastrointestinal Fistula

    Simon Parlow
    Referral may be required
    Ottawa, ON, CA 

    Simon Parlow practices practicing medicine in Ottawa, Canada. Mr. Parlow is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Cardiogenic Shock, Heart Attack, Necrosis, Heart Bypass Surgery, and Percutaneous Coronary Intervention (PCI).

    Experienced in Gastrointestinal Fistula

    Lara J. Williams
    Experienced in Gastrointestinal Fistula

    Lara J. Williams
    Referral may be required
    Ottawa, ON, CA 

    Lara Williams practices practicing medicine in Ottawa, Canada. Ms. Williams is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. Her clinical expertise encompasses Gastrointestinal Fistula and Colorectal Cancer.

    Experienced in Gastrointestinal Fistula

    Peter C. Church
    Experienced in Gastrointestinal Fistula

    Peter C. Church
    Referral may be required
    525 University Ave, M5G, 
    Toronto, ON, CA 

    Peter Church practices practicing medicine in Toronto, Canada. Mr. Church is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Crohn's Disease, Colitis, Colonoscopy, and Endoscopy.

    Experienced in Gastrointestinal Fistula

    Eveline Krol-Lapidus
    Experienced in Gastrointestinal Fistula

    Eveline Krol-Lapidus
    Referral may be required
    Toronto, ON, CA 

    Eveline Krol-Lapidus practices practicing medicine in Toronto, Canada. Ms. Krol-Lapidus is rated as an Experienced expert by MediFind in the treatment of Gastrointestinal Fistula. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Congenital Lobar Emphysema, Tracheoesophageal Fistula, Infantile Pyloric Stenosis, Appendectomy, and Splenectomy.

    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 99

    Last Updated: 06/30/2026

    What is the definition of Gastrointestinal Fistula?

    A gastrointestinal fistula is an abnormal opening in the stomach or intestines that allows the contents to leak to another part of the body.

    • Leaks that go through to a part of the intestines are called entero-enteral fistulas.
    • Leaks that go through to the skin are called enterocutaneous fistulas.
    • Other organs can be involved, such as the bladder, vagina, anus, and colon.

    When should I see a Gastrointestinal Fistula doctor in Ontario, CA?

    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 Fistula doctor in Ontario, CA?

    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 Fistula doctor in Ontario, CA?

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

    Gastrointestinal Fistula doctor near New York, NY
    Gastrointestinal Fistula doctor near Los Angeles, CA
    Gastrointestinal Fistula doctor near Chicago, IL
    Gastrointestinal Fistula doctor near Houston, TX
    Gastrointestinal Fistula doctor near Phoenix, AZ
    Gastrointestinal Fistula doctor near Philadelphia, PA
    Gastrointestinal Fistula doctor near Atlanta, GA
    Gastrointestinal Fistula doctor near Boston, MA
    Gastrointestinal Fistula doctor near Dallas, TX
    Gastrointestinal Fistula doctor near San Jose, CA

    How does MediFind rank Gastrointestinal Fistula doctors in Ontario, CA?

    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 Fistula doctors in Ontario, CA?

    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 Fistula doctor in Ontario, CA?

    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 Fistula doctor search results page. 

    Why is it important to get a second opinion from a different Gastrointestinal Fistula 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 Fistula doctor in Ontario, CA?

    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 Fistula 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 Fistula 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 Fistula doctors in Ontario, CA?

    Look for the filter feature on the left side of the Gastrointestinal Fistula 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 Fistula doctor that offers video calls?

    Look for the filter feature on the left-side of the Gastrointestinal Fistula 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 

    Read more about our Content Policy.