The 20 Best Lactose Intolerance Doctors Near Me in Ontario, CA

Find the Top Lactose Intolerance Experts and Specialists

Last Updated: 11/08/2026

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MediFind found 21 doctor with experience in Lactose Intolerance near Ontario, CA. Of these, 16 are Experienced and 5 are Advanced.

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21 providers found
    Advanced in Lactose Intolerance
    Advanced in Lactose Intolerance
    Referral may be required
    6 Queens Park Crescent, 
    Toronto, ON, CA 

    Ahmed Sohemy-El practices practicing medicine in Toronto, Canada. Mr. Sohemy-El is rated as an Advanced expert by MediFind in the treatment of Lactose Intolerance. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Lactose Intolerance, Premenstrual Syndrome, Malabsorption, and Malnutrition.

    Advanced in Lactose Intolerance
    Advanced in Lactose Intolerance
    Referral may be required
    Toronto, ON, CA 

    Edward Oh practices practicing medicine in Toronto, Canada. Mr. Oh is rated as an Advanced expert by MediFind in the treatment of Lactose Intolerance. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Lactose Intolerance and Malabsorption.

    Advanced in Lactose Intolerance
    Advanced in Lactose Intolerance
    Referral may be required
    Toronto, ON, CA 

    Orion Buske practices practicing medicine in Toronto, Canada. Mr. Buske is rated as an Advanced expert by MediFind in the treatment of Lactose Intolerance. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Lactose Intolerance, Congenital Heart Disease (CHD), and Malabsorption.

    Learn about our expert tiers
    Advanced in Lactose Intolerance
    Advanced in Lactose Intolerance
    Referral may be required
    Toronto, ON, CA 

    Arturas Petronis practices practicing medicine in Toronto, Canada. Petronis is rated as an Advanced expert by MediFind in the treatment of Lactose Intolerance. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Lactose Intolerance and Malabsorption.

    Advanced in Lactose Intolerance
    Advanced in Lactose Intolerance
    Referral may be required
    Toronto, ON, CA 

    Michael Brudno practices practicing medicine in Toronto, Canada. Mr. Brudno is rated as an Advanced expert by MediFind in the treatment of Lactose Intolerance. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Sotos Syndrome, Choroid Plexus Carcinoma, Weaver Syndrome, Gallbladder Removal, and Endoscopy.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Hamilton, ON, CA 

    Grigorios Leontiadis practices practicing medicine in Hamilton, Canada. Leontiadis is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. They are also highly rated in 7 other conditions, according to our data. Their clinical expertise encompasses Gastrointestinal Bleeding, Peptic Ulcer, Familial Colorectal Cancer, Endoscopy, and Colonoscopy.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    401 Smyth Rd, 
    Ottawa, ON, CA 

    Leanne Findlay practices practicing medicine in Ottawa, Canada. Ms. Findlay is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. Her clinical expertise encompasses Lactose Intolerance.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Ottawa, ON, CA 

    Alexandra Cohen practices practicing medicine in Ottawa, Canada. Ms. Cohen is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. Her clinical expertise encompasses Lactose Intolerance, Necrosis, Crohn's Disease, and Aplastic Anemia.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    1125 Colonel By Drive, 
    Ottawa, ON, CA 

    Yaxi Hu practices practicing medicine in Ottawa, Canada. Hu is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. Their clinical expertise encompasses Lactose Intolerance.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    1 King's College Circle, 
    Toronto, ON, CA 

    Rodrigo Valenzuela practices practicing medicine in Toronto, Canada. Mr. Valenzuela is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Non-Alcoholic Fatty Liver Disease, Vogt-Koyanagi-Harada Disease, Uveitis, and Obesity.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Toronto, ON, CA 

    Julia Upton practices practicing medicine in Toronto, Canada. Upton is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. They are also highly rated in 7 other conditions, according to our data. Their clinical expertise encompasses Anaphylaxis, Food Allergy, Activated PI3K Delta Syndrome (APDS), and Asthma.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Toronto, ON, CA 

    Jennifer Li practices practicing medicine in Toronto, Canada. Ms. Li is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. Her clinical expertise encompasses Lactose Intolerance and Crohn's Disease.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Ottawa, ON, CA 

    Ruth Singleton practices practicing medicine in Ottawa, Canada. Ms. Singleton is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. Her clinical expertise encompasses Lactose Intolerance, Hemorrhagic Proctocolitis, Ulcerative Colitis, and Colitis.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    451 Smyth Road, K1H 8M5, 
    Ottawa, ON, CA 

    Alain Stintzi practices practicing medicine in Ottawa, Canada. Mr. Stintzi is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Campylobacter Infection, Viral Gastroenteritis, Bacterial Gastroenteritis, Colitis, and Gastrostomy.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Ottawa, ON, CA 

    Pauline Barbeau practices practicing medicine in Ottawa, Canada. Ms. Barbeau is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Medium-Chain Acyl-CoA Dehydrogenase Deficiency and Lactose Intolerance.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    North York, ON, CA 

    Jennifer Gerdts practices practicing medicine in North York, Canada. Ms. Gerdts is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Anaphylaxis, Food Allergy, Asthma, and Grass Allergy.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Thunder Bay, ON, CA 

    Sudip Rakshit practices practicing medicine in Thunder Bay, Canada. Mr. Rakshit is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. His clinical expertise encompasses Lactose Intolerance and Dehydration.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    451 Smyth Road, K1H 8M5, 
    Ottawa, ON, CA 

    James Butcher practices practicing medicine in Ottawa, Canada. Mr. Butcher is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. His clinical expertise encompasses Campylobacter Infection, Premature Infant, Lactose Intolerance, and Hereditary Sensory Neuropathy Type 1 (HSN1).

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Kingston, ON, CA 

    Rozita Mazi-Borici practices practicing medicine in Kingston, Canada. Ms. Mazi-Borici is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Angioedema, Hereditary Angioedema, Hives, and Anaphylaxis.

    Experienced in Lactose Intolerance
    Experienced in Lactose Intolerance
    Referral may be required
    Toronto, ON, CA 

    Marla Mendes practices practicing medicine in Toronto, Canada. Ms. Mendes is rated as an Experienced expert by MediFind in the treatment of Lactose Intolerance. Her clinical expertise encompasses Autism Spectrum Disorder, Lactose Intolerance, and Mosaicism.

    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 21

    Last Updated: 11/08/2026

    What is the definition of Lactose Intolerance?

    Lactose is a type of sugar found in milk and other dairy products. An enzyme called lactase is needed by the body to digest lactose.

    Lactose intolerance develops when the small intestine does not make enough of this enzyme.

    When should I see a Lactose Intolerance 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 Lactose Intolerance 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 Lactose Intolerance doctor in Ontario, CA?

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

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    How does MediFind rank Lactose Intolerance 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 Lactose Intolerance 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 Lactose Intolerance 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 Lactose Intolerance doctor search results page. 

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

    Look for the filter feature on the left side of the Lactose Intolerance 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 Lactose Intolerance doctor that offers video calls?

    Look for the filter feature on the left-side of the Lactose Intolerance 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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