The 20 Best Obesity Doctors Near Me in Ontario, CA

Find the Top Obesity 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 1087 doctor with experience in Obesity near Ontario, CA. Of these, 969 are Experienced, 99 are Advanced, 16 are Distinguished and 3 are Elite.

Location
LocationClose
1,087 providers found
    Elite in Obesity

    Jean-philippe P. Chaput
    Elite in Obesity

    Jean-philippe P. Chaput
    Referral may be required
    401 Smyth Road, K1H 8L1, 
    Ottawa, ON, CA 

    Jean-philippe Chaput practices practicing medicine in Ottawa, Canada. Chaput is rated as an Elite expert by MediFind in the treatment of Obesity. They are also highly rated in 6 other conditions, according to our data. Their clinical expertise encompasses Obesity, Obesity in Children, Metabolic Syndrome, and Abdominal Obesity Metabolic Syndrome.

    Elite in Obesity

    Mario Musella
    Elite in Obesity

    Mario Musella
    Referral may be required
    MGB/OAGB Club, 
    Toronto, ON, CA 

    Mario Musella practices practicing medicine in Toronto, Canada. Mr. Musella is rated as an Elite expert by MediFind in the treatment of Obesity. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Obesity, Gastroesophageal Reflux Disease (GERD), Hiatal Hernia, Gastric Bypass, and Sleeve Gastrectomy.

    Elite in Obesity

    Gary S. Goldfield
    Elite in Obesity

    Gary S. Goldfield
    Referral may be required
    401 Smyth Rd, 
    Ottawa, ON, CA 

    Gary Goldfield practices practicing medicine in Ottawa, Canada. Mr. Goldfield is rated as an Elite expert by MediFind in the treatment of Obesity. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Obesity, Obesity in Children, Type 2 Diabetes (T2D), and Menopause.

    Learn about our expert tiers
    Distinguished in Obesity

    Mark S. Tremblay
    Distinguished in Obesity

    Mark S. Tremblay
    Referral may be required
    401 Smyth Road, 
    Ottawa, ON, CA 

    Mark Tremblay practices practicing medicine in Ottawa, Canada. Mr. Tremblay is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Obesity, Obesity in Children, Congenital Hyperinsulinism, and Abdominal Obesity Metabolic Syndrome.

    Distinguished in Obesity

    Sean B. Wharton
    Distinguished in Obesity

    Sean B. Wharton
    Referral may be required
    Burlington, ON, CA 

    Sean Wharton practices practicing medicine in Burlington, Canada. Mr. Wharton is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Obesity, Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), and Metabolic Syndrome.

    Distinguished in Obesity

    Sanjeev Sockalingam
    Distinguished in Obesity

    Sanjeev Sockalingam
    Referral may be required
    4001 Leslie Street, 
    Toronto, ON, CA 

    Sanjeev Sockalingam practices practicing medicine in Toronto, Canada. Mr. Sockalingam is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Obesity, Delirium, Hepatitis C, Severe Acute Respiratory Syndrome (SARS), and Gastric Bypass.

    Distinguished in Obesity

    Jennifer L. Kuk
    Distinguished in Obesity

    Jennifer L. Kuk
    Referral may be required
    Toronto, ON, CA 

    Jennifer Kuk practices practicing medicine in Toronto, Canada. Ms. Kuk is rated as a Distinguished expert by MediFind in the treatment of Obesity. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Obesity, Abdominal Obesity Metabolic Syndrome, Metabolic Syndrome, and Obesity in Children.

    Distinguished in Obesity

    Allan E. Okrainec
    Distinguished in Obesity

    Allan E. Okrainec
    Referral may be required
    Toronto, ON, CA 

    Allan Okrainec practices practicing medicine in Toronto, Canada. Mr. Okrainec is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Obesity, Hernia, Peptic Ulcer, Gastric Bypass, and Endoscopy.

    Distinguished in Obesity

    Kristi B. Adamo
    Distinguished in Obesity

    Kristi B. Adamo
    Referral may be required
    200 Lees Avenue, 
    Ottawa, ON, CA 

    Kristi Adamo practices practicing medicine in Ottawa, Canada. Ms. Adamo is rated as a Distinguished expert by MediFind in the treatment of Obesity. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Obesity, Obesity in Children, Heart Murmurs, and Gestational Diabetes.

    Distinguished in Obesity

    Eric Doucet
    Distinguished in Obesity

    Eric Doucet
    Referral may be required
    125 University Avenue, 
    Ottawa, ON, CA 

    Eric Doucet practices practicing medicine in Ottawa, Canada. Mr. Doucet is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Obesity, Menopause, Cerebral Hypoxia, and Gastric Bypass.

    Distinguished in Obesity

    Jess M. Haines
    Distinguished in Obesity

    Jess M. Haines
    Referral may be required
    Guelph, ON, CA 

    Jess Haines practices practicing medicine in Guelph, Canada. Mr. Haines is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Obesity in Children, Obesity, COVID-19, and Severe Acute Respiratory Syndrome (SARS).

    Distinguished in Obesity

    Aristithes G. Doumouras
    Distinguished in Obesity

    Aristithes G. Doumouras
    Referral may be required

    St. Joseph's Healthcare Hamilton

    Hamilton, ON, CA 

    Aristithes Doumouras practices practicing medicine in Hamilton, Canada. Doumouras is rated as a Distinguished expert by MediFind in the treatment of Obesity. They are also highly rated in 5 other conditions, according to our data. Their clinical expertise encompasses Obesity, Diverticular Disease, Colorectal Cancer, Ileostomy, and Gastric Bypass.

    Distinguished in Obesity

    Mehran Anvari
    Distinguished in Obesity

    Mehran Anvari
    Referral may be required
    St. Joseph's Hospital, 
    Hamilton, ON, CA 

    Mehran Anvari practices practicing medicine in Hamilton, Canada. Mr. Anvari is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Obesity, Peptic Ulcer, Vitamin D Deficiency, Gastric Bypass, and Gastrectomy.

    Distinguished in Obesity

    Marie E. Pigeyre
    Distinguished in Obesity

    Marie E. Pigeyre
    Referral may be required
    Hamilton, ON, CA 

    Marie Pigeyre practices practicing medicine in Hamilton, Canada. Ms. Pigeyre is rated as a Distinguished expert by MediFind in the treatment of Obesity. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Obesity, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Malnutrition, and Gastric Bypass.

    Distinguished in Obesity

    David Meyre
    Distinguished in Obesity

    David Meyre
    Referral may be required
    Hamilton, ON, CA 

    David Meyre practices practicing medicine in Hamilton, Canada. Mr. Meyre is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Obesity, Niemann-Pick Disease, Maturity Onset Diabetes of the Young, and Type 2 Diabetes (T2D).

    Distinguished in Obesity

    Jonathan D. Schertzer
    Distinguished in Obesity

    Jonathan D. Schertzer
    Referral may be required
    1200 Main St. W, 
    Hamilton, ON, CA 

    Jonathan Schertzer practices practicing medicine in Hamilton, Canada. Mr. Schertzer is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Obesity, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, and Non-Alcoholic Fatty Liver Disease.

    Distinguished in Obesity

    Dennis G. Hong
    Distinguished in Obesity

    Dennis G. Hong
    Referral may be required
    Hamilton, ON, CA 

    Dennis Hong practices practicing medicine in Hamilton, Canada. Mr. Hong is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Obesity, Peptic Ulcer, Diverticular Disease, Gastric Bypass, and Ileostomy.

    Distinguished in Obesity

    Marie-eve C. Mathieu
    Distinguished in Obesity

    Marie-eve C. Mathieu
    Referral may be required
    Ottawa, ON, CA 

    Marie-eve Mathieu practices practicing medicine in Ottawa, Canada. Mathieu is rated as a Distinguished expert by MediFind in the treatment of Obesity. They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Obesity in Children, Obesity, Congenital Hyperinsulinism, and Type 1 Diabetes (T1D).

    Distinguished in Obesity

    Michael J. Beyak
    Distinguished in Obesity

    Michael J. Beyak
    Referral may be required
    Kingston, ON, CA 

    Michael Beyak practices practicing medicine in Kingston, Canada. Mr. Beyak is rated as a Distinguished expert by MediFind in the treatment of Obesity. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Obesity, Ganglion Cyst, Viral Gastroenteritis, and Crohn's Disease.

    Advanced in Obesity

    Salim M. Yusuf
    Advanced in Obesity

    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 Obesity. 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).

    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 1,087

    Last Updated: 06/30/2026

    What is the definition of Obesity?

    Obesity means weighing more than what is healthy for a given height. Obesity is a serious, chronic disease. It can lead to other health problems, including diabetes, heart disease, and some cancers.

    When should I see an Obesity 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 an Obesity 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 Obesity doctor in Ontario, CA?

    You can find an Obesity doctor in any of the 10 largest U.S. cities by clicking below:

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

    How does MediFind rank Obesity 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 Obesity 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 an Obesity 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 Obesity doctor search results page. 

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

    Look for the filter feature on the left side of the Obesity 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 an Obesity doctor that offers video calls?

    Look for the filter feature on the left-side of the Obesity 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.