Filters

Specialty
Additional Specialty
Distance
    Gender
    Insurance
    Availability
    Language
    Years of Experience
    Level of Expertise

    Last Updated: 01/09/2026

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

    MediFind found 133 doctor with experience in Peptic Ulcer near Ontario, CA. Of these, 117 are Experienced, 12 are Advanced and 4 are Distinguished.

    Location
    LocationClose
    133 providers found
      Distinguished in Peptic Ulcer

      Waleed A. Alhazzani
      Distinguished in Peptic Ulcer

      Waleed A. Alhazzani
      Hamilton, ON, CA 

      Waleed Alhazzani practices in Hamilton, Canada. Mr. Alhazzani is rated as a Distinguished expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Peptic Ulcer, Gastrointestinal Bleeding, Acute Respiratory Distress Syndrome (ARDS), Thrombectomy, and Aortic Valve Replacement.

      Distinguished in Peptic Ulcer

      Paul M. Moayyedi
      Distinguished in Peptic Ulcer

      Paul M. Moayyedi
      Hamilton, ON, CA 

      Paul Moayyedi practices in Hamilton, Canada. Mr. Moayyedi is rated as a Distinguished expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Indigestion, Irritable Bowel Syndrome (IBS), Viral Gastroenteritis, Endoscopy, and Colonoscopy.

      Distinguished in Peptic Ulcer

      Richard H. Hunt
      Distinguished in Peptic Ulcer

      Richard H. Hunt
      Hamilton, ON, CA 

      Richard Hunt practices in Hamilton, Canada. Mr. Hunt is rated as a Distinguished expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Peptic Ulcer, Helicobacter Pylori Infection, Esophagitis, and Gastroesophageal Reflux Disease (GERD).

      Learn about our expert tiers
      Distinguished in Peptic Ulcer

      Grigorios I. Leontiadis
      Distinguished in Peptic Ulcer

      Grigorios I. Leontiadis
      Hamilton, ON, CA 

      Grigorios Leontiadis practices in Hamilton, Canada. Leontiadis is rated as a Distinguished expert by MediFind in the treatment of Peptic Ulcer. Their top areas of expertise are Gastrointestinal Bleeding, Peptic Ulcer, Hereditary Pancreatitis, Endoscopy, and Colonoscopy.

      John G. Muscedere
      Advanced in Peptic Ulcer

      John G. Muscedere
      Advanced in Peptic Ulcer

      John G. Muscedere
      Kingston, ON, CA 

      John Muscedere practices in Kingston, Canada. Mr. Muscedere is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Pneumonia, Hospital-Acquired Pneumonia, Delirium, and Gastrointestinal Bleeding.

      Advanced in Peptic Ulcer

      Gordon H. Guyatt
      Advanced in Peptic Ulcer

      Gordon H. Guyatt
      1Department Of Psychiatry And Behavioural Neuroscience, 100 West 5th Street, 
      Hamilton, ON, CA 

      Gordon Guyatt practices in Hamilton, Canada. Mr. Guyatt is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Venous Thromboembolism (VTE), Chronic Pain, Gastrointestinal Bleeding, Lithotripsy, and Thrombectomy.

      Advanced in Peptic Ulcer

      Dr. Scott Gmora
      General Surgery
      Advanced in Peptic Ulcer

      Dr. Scott Gmora
      General Surgery
      50 Charlton Ave East, G836, 
      Hamilton, ON, CA 
      905-522-1155
      Languages Spoken:
      English

      Scott Gmora is a General Surgeon in Hamilton, Canada. Dr. Gmora is rated as an Advanced provider by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Peptic Ulcer, Obesity, Gastric Bypass, and Sleeve Gastrectomy.

      Advanced in Peptic Ulcer

      Allan E. Okrainec
      Advanced in Peptic Ulcer

      Allan E. Okrainec
      Toronto, ON, CA 

      Allan Okrainec practices in Toronto, Canada. Mr. Okrainec is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Obesity, Hernia, Peptic Ulcer, Gastric Bypass, and Endoscopy.

      Advanced in Peptic Ulcer

      Dennis G. Hong
      Advanced in Peptic Ulcer

      Dennis G. Hong
      Hamilton, ON, CA 

      Dennis Hong practices in Hamilton, Canada. Mr. Hong is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Obesity, Peptic Ulcer, Diverticular Disease, Gastric Bypass, and Ileostomy.

      Advanced in Peptic Ulcer

      Mehran Anvari
      Advanced in Peptic Ulcer

      Mehran Anvari
      St. Joseph's Hospital, 
      Hamilton, ON, CA 

      Mehran Anvari practices in Hamilton, Canada. Mr. Anvari is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Obesity, Peptic Ulcer, Vitamin D Deficiency, Gastric Bypass, and Gastrectomy.

      Advanced in Peptic Ulcer

      Joanna C. Dionne
      Advanced in Peptic Ulcer

      Joanna C. Dionne
      Hamilton, ON, CA 

      Joanna Dionne practices in Hamilton, Canada. Ms. Dionne is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. Her top areas of expertise are Gastrointestinal Bleeding, Diarrhea, Peptic Ulcer, Liver Failure, and Endoscopy.

      Advanced in Peptic Ulcer

      Simon M. Dong
      Advanced in Peptic Ulcer

      Simon M. Dong
      Ottawa, ON, CA 

      Simon Dong practices in Ottawa, Canada. Dong is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. Their top areas of expertise are Peptic Ulcer and Helicobacter Pylori Infection.

      Advanced in Peptic Ulcer

      Shane W. English
      Advanced in Peptic Ulcer

      Shane W. English
      Ottawa, ON, CA 

      Shane English practices in Ottawa, Canada. Mr. English is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Subarachnoid Hemorrhage, Gastrointestinal Bleeding, Peptic Ulcer, Severe Acute Respiratory Syndrome (SARS), and Kidney Transplant.

      Advanced in Peptic Ulcer

      Bram Rochwerg
      Advanced in Peptic Ulcer

      Bram Rochwerg
      Box 211, 711 Concession St, 
      Hamilton, ON, CA 

      Bram Rochwerg practices in Hamilton, Canada. Mr. Rochwerg is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Sepsis, Acute Respiratory Distress Syndrome (ARDS), COVID-19, Thrombectomy, and Coronary Artery Bypass Graft (CABG).

      Advanced in Peptic Ulcer

      Yuhong C. Yuan
      Advanced in Peptic Ulcer

      Yuhong C. Yuan
      London, ON, CA 

      Yuhong Yuan practices in London, Canada. Yuan is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. Their top areas of expertise are Viral Gastroenteritis, Esophagitis, Indigestion, Ileostomy, and Endoscopy.

      Advanced in Peptic Ulcer

      Mario Musella
      Advanced in Peptic Ulcer

      Mario Musella
      MGB/OAGB Club, 
      Toronto, ON, CA 

      Mario Musella practices in Toronto, Canada. Mr. Musella is rated as an Advanced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Obesity, Gastroesophageal Reflux Disease (GERD), Hiatal Hernia, Gastric Bypass, and Sleeve Gastrectomy.

      James D. Douketis
      Experienced in Peptic Ulcer

      James D. Douketis
      Experienced in Peptic Ulcer

      James D. Douketis
      Hamilton, ON, CA 

      James Douketis practices in Hamilton, Canada. Douketis is rated as an Experienced expert by MediFind in the treatment of Peptic Ulcer. Their top areas of expertise are Venous Thromboembolism (VTE), Deep Vein Thrombosis, Mesenteric Venous Thrombosis, Thrombectomy, and Hormone Replacement Therapy (HRT).

      Joel D. Katz
      Experienced in Peptic Ulcer

      Joel D. Katz
      Experienced in Peptic Ulcer

      Joel D. Katz
      Toronto, ON, CA 

      Joel Katz practices in Toronto, Canada. Mr. Katz is rated as an Experienced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Acute Pain, Chronic Pain, Ehlers-Danlos Syndrome (EDS), Hepatectomy, and Knee Replacement.

      Jackie G. Bosch
      Experienced in Peptic Ulcer

      Jackie G. Bosch
      Experienced in Peptic Ulcer

      Jackie G. Bosch
      Hamilton, ON, CA 

      Jackie Bosch practices in Hamilton, Canada. Ms. Bosch is rated as an Experienced expert by MediFind in the treatment of Peptic Ulcer. Her top areas of expertise are Peripheral Artery Disease, Atherosclerosis, Stroke, Thrombectomy, and Leg or Foot Amputation.

      Salim M. Yusuf
      Experienced in Peptic Ulcer

      Salim M. Yusuf
      Experienced in Peptic Ulcer

      Salim M. Yusuf
      30 Birge St, 
      Hamilton, ON, CA 

      Salim Yusuf practices in Hamilton, Canada. Mr. Yusuf is rated as an Experienced expert by MediFind in the treatment of Peptic Ulcer. His top areas of expertise are Atrial Fibrillation, Stroke, Heart Attack, Heart Bypass Surgery, and Coronary Artery Bypass Graft (CABG).

      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 133

      Last Updated: 01/09/2026

      What is the definition of Peptic Ulcer?

      A peptic ulcer is an open sore or raw area in the lining of the stomach (gastric ulcer) or in the first part of the small intestine (duodenal ulcer).

      There are two types of peptic ulcers:

      • Gastric ulcer -- occurs in the stomach
      • Duodenal ulcer -- occurs in the first part of the small intestine

      When should I see a Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer doctor in Ontario, CA?

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

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

      How does MediFind rank Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer doctor search results page. 

      Why is it important to get a second opinion from a different Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer 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 Peptic Ulcer doctors in Ontario, CA?

      Look for the filter feature on the left side of the Peptic Ulcer 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 Peptic Ulcer doctor that offers video calls?

      Look for the filter feature on the left-side of the Peptic Ulcer 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. 

      Recommended has been selected.