The 20 Best Koolen De Vries Syndrome Doctors Near Me in Gelderland, NL

Find the Top Koolen De Vries Syndrome Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 13 doctor with experience in Koolen De Vries Syndrome near Gelderland, NL. Of these, 9 are Experienced, 3 are Advanced and 1 are Elite.

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13 providers found
    Elite in Koolen De Vries Syndrome

    David A. Koolen
    Elite in Koolen De Vries Syndrome

    David A. Koolen
    Referral may be required
    Nijmegen, GE, NL 

    David Koolen practices practicing medicine in Nijmegen, Netherlands. Mr. Koolen is rated as an Elite expert by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Koolen De Vries Syndrome, Hypotonia, Epilepsy, and Short Philtrum.

    Advanced in Koolen De Vries Syndrome

    Patricia M. Van Deurzen
    Advanced in Koolen De Vries Syndrome

    Patricia M. Van Deurzen
    Referral may be required
    Nijmegen, GE, NL 

    Patricia Van Deurzen practices practicing medicine in Nijmegen, Netherlands. Ms. Van Deurzen is rated as an Advanced expert by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Koolen De Vries Syndrome.

    Advanced in Koolen De Vries Syndrome

    Joost E. Janzing
    Advanced in Koolen De Vries Syndrome

    Joost E. Janzing
    Referral may be required
    Nijmegen, GE, NL 

    Joost Janzing practices practicing medicine in Nijmegen, Netherlands. Janzing is rated as an Advanced expert by MediFind in the treatment of Koolen De Vries Syndrome. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Koolen De Vries Syndrome, Major Depression, and Autism Spectrum Disorder.

    Learn about our expert tiers
    Advanced in Koolen De Vries Syndrome

    Hans Van Bokhoven
    Advanced in Koolen De Vries Syndrome

    Hans Van Bokhoven
    Referral may be required
    Nijmegen, GE, NL 

    Hans Van Bokhoven practices practicing medicine in Nijmegen, Netherlands. Mr. Van Bokhoven is rated as an Advanced expert by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Crouzon Syndrome, Lissencephaly, X-Linked Retinal Dysplasia, and Fukuyama Type Muscular Dystrophy.

    Experienced in Koolen De Vries Syndrome

    Charlotte W. Ockeloen
    Experienced in Koolen De Vries Syndrome

    Charlotte W. Ockeloen
    Referral may be required
    Nijmegen, GE, NL 

    Charlotte Ockeloen practices practicing medicine in Nijmegen, Netherlands. Ms. Ockeloen is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses KBG Syndrome, Coffin-Siris Syndrome, Koolen De Vries Syndrome, and Meier-Gorlin Syndrome.

    Experienced in Koolen De Vries Syndrome

    Katrin Linda
    Experienced in Koolen De Vries Syndrome

    Katrin Linda
    Referral may be required
    Nijmegen, GE, NL 

    Katrin Linda practices practicing medicine in Nijmegen, Netherlands. Ms. Linda is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. Her clinical expertise encompasses Spastic Paraplegia-Epilepsy-Intellectual Disability Syndrome, Koolen De Vries Syndrome, Epilepsy, and Rett Syndrome.

    Experienced in Koolen De Vries Syndrome

    Nael N. Kasri
    Experienced in Koolen De Vries Syndrome

    Nael N. Kasri
    Referral may be required
    Nijmegen, GE, NL 

    Nael Kasri practices practicing medicine in Nijmegen, Netherlands. Mr. Kasri is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses MELAS Syndrome, Coffin-Siris Syndrome, Epilepsy, and Lactic Acidosis.

    Experienced in Koolen De Vries Syndrome

    Karlijn Vermeulen
    Experienced in Koolen De Vries Syndrome

    Karlijn Vermeulen
    Referral may be required
    Ede, GE, NL 

    Karlijn Vermeulen practices practicing medicine in Ede, Netherlands. Vermeulen is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. Their clinical expertise encompasses Koolen De Vries Syndrome, Autism Spectrum Disorder, and KBG Syndrome.

    Experienced in Koolen De Vries Syndrome

    Simon E. Fisher
    Experienced in Koolen De Vries Syndrome

    Simon E. Fisher
    Referral may be required
    Nijmegen, GE, NL 

    Simon Fisher practices practicing medicine in Nijmegen, Netherlands. Mr. Fisher is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Developmental Reading Disorder, Apraxia, Autism Spectrum Disorder, Increased Head Circumference, and Splenectomy.

    Experienced in Koolen De Vries Syndrome

    Jos M. Egger
    Experienced in Koolen De Vries Syndrome

    Jos M. Egger
    Referral may be required
    Nijmegen, GE, NL 

    Jos Egger practices practicing medicine in Nijmegen, Netherlands. Mr. Egger is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Cardiomyopathic Lentiginosis, Noonan Syndrome, RASopathies, and Autism Spectrum Disorder.

    Experienced in Koolen De Vries Syndrome

    Marjolein H. Willemsen
    Experienced in Koolen De Vries Syndrome

    Marjolein H. Willemsen
    Referral may be required
    Nijmegen, GE, NL 

    Marjolein Willemsen practices practicing medicine in Nijmegen, Netherlands. Willemsen is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. They are also highly rated in 5 other conditions, according to our data. Their clinical expertise encompasses Hypotonia, KBG Syndrome, Microcephaly, and Achalasia Microcephaly Syndrome.

    Experienced in Koolen De Vries Syndrome

    Karen M. Van Hulst
    Experienced in Koolen De Vries Syndrome

    Karen M. Van Hulst
    Referral may be required
    Nijmegen, GE, NL 

    Karen Van Hulst practices practicing medicine in Nijmegen, Netherlands. Ms. Van Hulst is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Cerebral Palsy, Spastic Diplegia Infantile Type, Swallowing Difficulty, and Dysarthria.

    Experienced in Koolen De Vries Syndrome

    Linde M. Van Dongen
    Experienced in Koolen De Vries Syndrome

    Linde M. Van Dongen
    Referral may be required
    Nijmegen, GE, NL 

    Linde Van Dongen practices practicing medicine in Nijmegen, Netherlands. Ms. Van Dongen is rated as an Experienced expert by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses KBG Syndrome, Ruvalcaba Syndrome, Bannayan-Riley-Ruvalcaba Syndrome, and Cowden Syndrome.

    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 1-13 of 13

    Last Updated: 06/30/2026

    What is the definition of Koolen De Vries Syndrome?

    Koolen de Vries syndrome is a disorder characterized by developmental delay, mild to moderate intellectual disability, congenital malformations, and behavioral features. Other problems include weak muscle tone (hypotonia) in childhood, recurrent seizures (epilepsy), and distinctive facial features. Males with Koolen de Vries syndrome often have undescended testes (cryptorchidism). Other symptoms may include defects in the walls between the chambers of the heart (septal defects) or other heart defects, kidney problems, and skeletal anomalies such as foot deformities. It is caused by genetic changes in the KANSL1 gene, or by the loss of a small amount of genetic material in chromosome 17 that includes the KANSL1 gene (chromosome 17 q21.31 microdeletion). Inheritance is autosomal dominant.

    When should I see a Koolen De Vries Syndrome doctor in Gelderland, NL?

    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 Koolen De Vries Syndrome doctor in Gelderland, NL?

    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 Koolen De Vries Syndrome doctor in Gelderland, NL?

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

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    How does MediFind rank Koolen De Vries Syndrome doctors in Gelderland, NL?

    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 Koolen De Vries Syndrome doctors in Gelderland, NL?

    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 Koolen De Vries Syndrome doctor in Gelderland, NL?

    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 Koolen De Vries Syndrome doctor search results page. 

    Why is it important to get a second opinion from a different Koolen De Vries 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 Koolen De Vries Syndrome doctor in Gelderland, NL?

    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 Koolen De Vries 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 Koolen De Vries 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 Koolen De Vries Syndrome doctors in Gelderland, NL?

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

    Look for the filter feature on the left-side of the Koolen De Vries 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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