The 20 Best Costello Syndrome Doctors Near Me in Ontario, CA

Find the Top Costello Syndrome Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 18 doctor with experience in Costello Syndrome near Ontario, CA. Of these, 14 are Experienced, 3 are Advanced and 1 are Distinguished.

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18 providers found
    Distinguished in Costello Syndrome

    Robert A. Hegele
    Distinguished in Costello Syndrome

    Robert A. Hegele
    Referral may be required
    1151 Richmond St, 
    London, ON, CA 

    Robert Hegele practices practicing medicine in London, Canada. Hegele is rated as a Distinguished expert by MediFind in the treatment of Costello Syndrome. They are also highly rated in 35 other conditions, according to our data. Their clinical expertise encompasses Familial Hypertriglyceridemia, High Cholesterol, Apolipoprotein C2 Deficiency, and Familial Lipoprotein Lipase Deficiency.

    Advanced in Costello Syndrome

    Masayoshi Machida
    Advanced in Costello Syndrome

    Masayoshi Machida
    Referral may be required
    555 University Avenue, M5G 1XB, 
    Toronto, ON, CA 

    Masayoshi Machida practices practicing medicine in Toronto, Canada. Mr. Machida is rated as an Advanced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Scoliosis, Costello Syndrome, Kyphosis, Osteotomy, and Spinal Fusion.

    Advanced in Costello Syndrome

    Judith E. Allanson
    Advanced in Costello Syndrome

    Judith E. Allanson
    Referral may be required
    Ottawa, ON, CA 

    Judith Allanson practices practicing medicine in Ottawa, Canada. Ms. Allanson is rated as an Advanced expert by MediFind in the treatment of Costello Syndrome. She is also highly rated in 8 other conditions, according to our data. Her clinical expertise encompasses Blepharophimosis, Floating-Harbor Syndrome, Cardiofaciocutaneous Syndrome, and Deafness Craniofacial Syndrome.

    Learn about our expert tiers
    Advanced in Costello Syndrome

    Mary-louise C. Greer
    Advanced in Costello Syndrome

    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 Advanced expert by MediFind in the treatment of Costello Syndrome. 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 Costello Syndrome

    Brandon S. Sheffield
    Experienced in Costello Syndrome

    Brandon S. Sheffield
    Referral may be required
    Brampton, ON, CA 

    Brandon Sheffield practices practicing medicine in Brampton, Canada. Mr. Sheffield is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Pancreatic Ductal Adenocarcinoma, Costello Syndrome, and Tissue Biopsy.

    Experienced in Costello Syndrome

    Reena Pabari
    Experienced in Costello Syndrome

    Reena Pabari
    Referral may be required
    Toronto, ON, CA 

    Reena Pabari practices practicing medicine in Toronto, Canada. Ms. Pabari is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. Her clinical expertise encompasses Hodgkin Lymphoma, Costello Syndrome, RASopathies, and Leukemia.

    Experienced in Costello Syndrome

    Anita Villani
    Experienced in Costello Syndrome

    Anita Villani
    Referral may be required
    Toronto, ON, CA 

    Anita Villani practices practicing medicine in Toronto, Canada. Ms. Villani is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Li-Fraumeni Syndrome, DICER1 Syndrome, Turcot Syndrome, and Rommen Mueller Sybert Syndrome.

    Experienced in Costello Syndrome

    Uri Tabori
    Experienced in Costello Syndrome

    Uri Tabori
    Referral may be required
    Toronto, ON, CA 

    Uri Tabori practices practicing medicine in Toronto, Canada. Mr. Tabori is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Glioma, Choroid Plexus Carcinoma, Gliomatosis Cerebri, and Cerebral Ventricle Cancer.

    Experienced in Costello Syndrome

    Georges B. Nassrallah
    Experienced in Costello Syndrome

    Georges B. Nassrallah
    Referral may be required
    Toronto, ON, CA 

    Georges Nassrallah practices practicing medicine in Toronto, Canada. Mr. Nassrallah is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Ectropion, Chemosis, Petrositis, Vitrectomy, and Cataract Removal.

    Experienced in Costello Syndrome

    Roberto Londono-Mendoza
    Experienced in Costello Syndrome

    Roberto Londono-Mendoza
    Referral may be required
    Toronto, ON, CA 

    Roberto Londono-Mendoza practices practicing medicine in Toronto, Canada. Mr. Londono-Mendoza is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses CHARGE Syndrome, Ehlers-Danlos Syndrome (EDS), Coloboma, and Nicolaides-Baraitser Syndrome.

    Experienced in Costello Syndrome

    Dan D. Deangelis
    Experienced in Costello Syndrome

    Dan D. Deangelis
    Referral may be required
    Toronto, ON, CA 

    Dan Deangelis practices practicing medicine in Toronto, Canada. Mr. Deangelis is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Periorbital Cellulitis, Orbital Cellulitis, Ptosis, and Orbital Pseudotumor.

    Experienced in Costello Syndrome

    Fabio Buentello-Salamanca
    Experienced in Costello Syndrome

    Fabio Buentello-Salamanca
    Referral may be required
    Toronto, ON, CA 

    Fabio Buentello-Salamanca practices practicing medicine in Toronto, Canada. Mr. Buentello-Salamanca is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. His clinical expertise encompasses Costello Syndrome and Severe Acute Respiratory Syndrome (SARS).

    Experienced in Costello Syndrome

    Aleksander Hinek
    Experienced in Costello Syndrome

    Aleksander Hinek
    Referral may be required
    Toronto, ON, CA 

    Aleksander Hinek practices practicing medicine in Toronto, Canada. Mr. Hinek is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Brachydactyly, Multiple Synostoses Syndrome 1, Mandibuloacral Dysplasia, and Acrorenal Mandibular Syndrome.

    Experienced in Costello Syndrome

    Susan I. Blaser
    Experienced in Costello Syndrome

    Susan I. Blaser
    Referral may be required
    170 Elizabeth Street, 
    Toronto, ON, CA 

    Susan Blaser practices practicing medicine in Toronto, Canada. Ms. Blaser is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. She is also highly rated in 27 other conditions, according to our data. Her clinical expertise encompasses Orbital Cellulitis, Cerebelloparenchymal Disorder 3, Oculocerebrocutaneous Syndrome, and X-Linked Chondrodysplasia Punctata 2.

    Experienced in Costello Syndrome

    Kathy Chun
    Experienced in Costello Syndrome

    Kathy Chun
    Referral may be required
    Toronto, ON, CA 

    Kathy Chun practices practicing medicine in Toronto, Canada. Ms. Chun is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Facial Ectodermal Dysplasia, Costello Syndrome, RASopathies, and Ovarian Cancer.

    Experienced in Costello Syndrome

    Rosanna A. Weksberg
    Experienced in Costello Syndrome

    Rosanna A. Weksberg
    Referral may be required
    686 Bay Street, 
    Toronto, ON, CA 

    Rosanna Weksberg practices practicing medicine in Toronto, Canada. Ms. Weksberg is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. She is also highly rated in 34 other conditions, according to our data. Her clinical expertise encompasses Hemihyperplasia, Macroglossia, Sotos Syndrome, and Beckwith-Wiedemann Syndrome.

    Experienced in Costello Syndrome

    Mark R. Palmert
    Experienced in Costello Syndrome

    Mark R. Palmert
    Referral may be required
    Toronto, ON, CA 

    Mark Palmert practices practicing medicine in Toronto, Canada. Mr. Palmert is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Isolated Hypogonadotropic Hypogonadism, Hypogonadotropic Hypogonadism, Precocious Puberty, and Hypogonadism.

    Experienced in Costello Syndrome

    William L. Wong
    Experienced in Costello Syndrome

    William L. Wong
    Referral may be required
    Kitchener, ON, CA 

    William Wong practices practicing medicine in Kitchener, Canada. Mr. Wong is rated as an Experienced expert by MediFind in the treatment of Costello Syndrome. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Hepatitis C, Hepatitis, Hepatitis B, Liver Cancer, and Liver Transplant.

    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.
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    Last Updated: 06/30/2026

    What is the definition of Costello Syndrome?

    Costello syndrome is a rare disorder that affects many parts of the body. This condition is characterized by delayed development, loose folds of skin (which are especially noticeable on the hands and feet), unusually flexible joints, heart problems, short stature, and distinctive facial features.

    When should I see a Costello Syndrome 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 Costello Syndrome 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 Costello Syndrome doctor in Ontario, CA?

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

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    How does MediFind rank Costello Syndrome 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 Costello Syndrome 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 Costello Syndrome 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 Costello Syndrome doctor search results page. 

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

    Look for the filter feature on the left side of the Costello Syndrome 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 Costello Syndrome doctor that offers video calls?

    Look for the filter feature on the left-side of the Costello Syndrome 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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