The 20 Best Koolen De Vries Syndrome Doctors Near Me in fountain valley, CA

Find the Top Koolen De Vries Syndrome Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 199 doctor with experience in Koolen De Vries Syndrome near fountain valley, CA. Of these, 155 are Experienced and 44 are Advanced.

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199 providers found
    Experienced in Koolen De Vries Syndrome
    Experienced in Koolen De Vries Syndrome
    Referral may be required

    Leduc Medical Group Inc, MD

    11160 Warner Ave, 
    Fountain Valley, CA 
     (1.2 miles away)
    Languages Spoken:
    English

    Xuanto Leduc is a Pediatrics provider practicing medicine in Fountain Valley, California. Dr. Leduc is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. Her clinical expertise encompasses Cardiofaciocutaneous Syndrome, Indigestion, Delayed Growth, and RASopathies. Dr. Leduc is board certified in American Board Pediatrics.

    Advanced in Koolen De Vries Syndrome
    Medical Genetics | Pediatrics
    Advanced in Koolen De Vries Syndrome
    Medical Genetics | Pediatrics
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English

    Leslie Raffel is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Orange, California. Dr. Raffel is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 92 other conditions, according to our data. Her clinical expertise encompasses Chromosome 13q Deletion, Miller-Dieker Syndrome, Smith-Magenis Syndrome, and HNRNPH2-Related Disorder. Dr. Raffel is board certified in American Board Of Pediatrics - Pediatrics.

    Experienced in Koolen De Vries Syndrome
    Medical Genetics
    Experienced in Koolen De Vries Syndrome
    Medical Genetics
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, Building 30, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Fuki Hisama is a Medical Genetics provider practicing medicine in Orange, California. Dr. Hisama is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 24 other conditions, according to our data. Her clinical expertise encompasses Cockayne Syndrome, Coffin-Siris Syndrome, Cornelia De Lange Syndrome, and Cockayne Syndrome Type 1. Dr. Hisama is board certified in American Board Of Psychiatry And Neurology - Neurology and American Board Of Medical Genetics And Genomics - Clinical Genetics And Genomics. Dr. Hisama is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Koolen De Vries Syndrome
    Medical Genetics
    Experienced in Koolen De Vries Syndrome
    Medical Genetics
    Referral may be required

    UCI Health Chao Family Comprehensive Digestive Disease Center

    101 The City Drive South, Building 22C, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Angela Myers is a Medical Genetics provider practicing medicine in Orange, California. Dr. Myers is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Bowen-Conradi Syndrome, Costello Syndrome, Microcephaly Deafness Syndrome, and RASopathies.

    Experienced in Koolen De Vries Syndrome
    Pediatrics | Pediatric Pulmonology
    Experienced in Koolen De Vries Syndrome
    Pediatrics | Pediatric Pulmonology
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English, Farsi
    Accepting New Patients

    Mehrdad Jalili is a Pediatrics specialist and a Pediatric Pulmonologist practicing medicine in Orange, California. Dr. Jalili is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. His clinical expertise encompasses Early Infantile Epileptic Encephalopathy, Microcephaly Deafness Syndrome, Koolen De Vries Syndrome, and CHARGE Syndrome. Dr. Jalili is board certified in American Board Of Critical Care Medicine, American Board Of Pediatrics - Pediatrics, and American Board Of Pediatrics - Pediatric Critical Care Medicine. Dr. Jalili is currently accepting new patients.

    Experienced in Koolen De Vries Syndrome
    Medical Genetics | Neurology
    Experienced in Koolen De Vries Syndrome
    Medical Genetics | Neurology
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, Building 30, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Changrui Xiao is a Medical Genetics specialist and a Neurologist practicing medicine in Orange, California. Dr. Xiao is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Thymidine Kinase 2 Deficiency (TK2d), Glutaric Acidemia Type 2, Retinopathy Pigmentary Mental Retardation, and Adrenoleukodystrophy (ALD). Dr. Xiao is board certified in American Board Of Psychiatry And Neurology - Neurology and American Board Of Medical Genetics And Genomics - Clinical Genetics And Genomics. Dr. Xiao is currently accepting new patients.

    Experienced in Koolen De Vries Syndrome
    Pediatric Infectious Disease | Pediatrics
    Experienced in Koolen De Vries Syndrome
    Pediatric Infectious Disease | Pediatrics
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English, Farsi, Spanish

    Behnoosh Afghani is a Pediatric Infectious Disease specialist and a Pediatrics provider practicing medicine in Orange, California. Dr. Afghani is rated as an Experienced provider 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 Kawasaki Disease, Cerebral Hypoxia, PEPCK 1 Deficiency, and Pyruvate Carboxylase Deficiency. Dr. Afghani is board certified in American Board Of Pediatrics - Pediatrics and American Board Of Pediatrics - Pediatric Infectious Diseases.

    Experienced in Koolen De Vries Syndrome
    Cardiac Electrophysiology | Cardiology
    Experienced in Koolen De Vries Syndrome
    Cardiac Electrophysiology | Cardiology
    Referral may be required

    UCI Health Cardiovascular Center

    101 The City Drive South, Building 25, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    David Donaldson is a Cardiac Electrophysiologist and a Cardiologist practicing medicine in Orange, California. Dr. Donaldson is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Arrhythmias, His Bundle Tachycardia, Paroxysmal Supraventricular Tachycardia (PSVT), and Pacemaker Implantation. Dr. Donaldson is board certified in American Board Of Internal Medicine - Clinical Cardiac Electrophysiology.

    Experienced in Koolen De Vries Syndrome
    Experienced in Koolen De Vries Syndrome
    Referral required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English, Arabic
    Accepting New Patients
    Offers Telehealth

    Almoatazbellah Idriss is an Endocrinologist practicing medicine in Orange, California. Dr. Idriss is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 35 other conditions, according to our data. His clinical expertise encompasses Prolactinoma, Triple A Syndrome, Familial Glucocorticoid Deficiency, and Hypoaldosteronism. Dr. Idriss is board certified in American Board Of Internal Medicine - Internal Medicine and American Board Of Internal Medicine - Endocrinology Diabetes And Metabolism. Dr. Idriss is currently accepting new patients.

    Experienced in Koolen De Vries Syndrome
    Experienced in Koolen De Vries Syndrome
    Referral may be required

    UCI Health Chao Family Comprehensive Cancer Center

    101 The City Drive South, Building 23, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English, Korean
    Accepting New Patients
    Offers Telehealth

    Yoon Choi is a Neurologist practicing medicine in Orange, California. Dr. Choi is rated as an Experienced provider by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses Glioblastoma, Astrocytoma, Ependymoma, and Embryonal Tumor with Multilayered Rosettes. Dr. Choi is board certified in American Board Of Psychiatry And Neurology - Neurology and American Board Of Clinical Neurophysiology - General Clinical Neurophysiology. Dr. Choi is currently accepting new patients.

    Advanced in Koolen De Vries Syndrome
    Medical Genetics
    Advanced in Koolen De Vries Syndrome
    Medical Genetics
    Referral may be required

    Uc Regents Uci Dept Of Pediatrics

    101 The City Dr S, 
    Orange, CA 
     (6.6 miles away)
    Languages Spoken:
    English

    Natalie Gallant is a Medical Genetics provider practicing medicine in Orange, California. Dr. Gallant is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 98 other conditions, according to our data. Her clinical expertise encompasses Chromosome 8p Deletion, Chromosome 6q Duplication, Microcephaly, and Microcephaly Deafness Syndrome. Dr. Gallant is board certified in American Board Of Medical Genetics And Genomics - Clinical Genetics And Genomics.

    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology | Pediatrics
    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology | Pediatrics
    Referral may be required
    505 South Main Street, Suite 600, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Anjan Batra is a Pediatric Cardiologist and a Pediatrics provider practicing medicine in Orange, California. Dr. Batra is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 65 other conditions, according to our data. His clinical expertise encompasses Arrhythmias, Congenital Heart Disease (CHD), Paroxysmal Supraventricular Tachycardia (PSVT), Heart Valve Repair, and Cardiac Ablation. Dr. Batra is board certified in Pediatrics (Sub: Pediatric Cardiology). Dr. Batra is currently accepting new patients.

    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology
    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology
    Referral may be required
    505 South Main Street, Suite 200, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Pierangelo Renella is a Pediatric Cardiologist practicing medicine in Orange, California. Dr. Renella is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 59 other conditions, according to our data. His clinical expertise encompasses Congenital Heart Disease (CHD), Duchenne Muscular Dystrophy, Becker Muscular Dystrophy, and Pulmonary Atresia. Dr. Renella is currently accepting new patients.

    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology
    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology
    Referral may be required
    505 South Main Street, Suite 200, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Wyman Lai is a Pediatric Cardiologist practicing medicine in Orange, California. Dr. Lai is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 56 other conditions, according to our data. His clinical expertise encompasses Hypoplastic Left Heart Syndrome (HLHS), Tetralogy of Fallot, Patent Ductus Arteriosus, Cardiac Diverticulum, and Heart Transplant. Dr. Lai is currently accepting new patients.

    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology
    Advanced in Koolen De Vries Syndrome
    Pediatric Cardiology
    Referral may be required
    505 South Main Street, Suite 200, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Anthony Chang is a Pediatric Cardiologist practicing medicine in Orange, California. Dr. Chang is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Supravalvular Aortic Stenosis, Duchenne Muscular Dystrophy, Heart Murmurs, and Kawasaki Disease. Dr. Chang is currently accepting new patients.

    Advanced in Koolen De Vries Syndrome
    Pediatric Otolaryngology
    Advanced in Koolen De Vries Syndrome
    Pediatric Otolaryngology
    Referral may be required
    1010 West La Veta Avenue, Suite 640, 
    Orange, CA 
     (7.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Nguyen Pham is a Pediatric Otolaryngologist practicing medicine in Orange, California. Dr. Pham is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Velopharyngeal Insufficiency, Pierre Robin Sequence, Microtia, and Retropharyngeal Abscess. Dr. Pham is currently accepting new patients.

    Advanced in Koolen De Vries Syndrome
    Advanced in Koolen De Vries Syndrome
    Referral may be required

    PSF Cardiology

    455 S Main St, 
    Orange, CA 
     (7.1 miles away)
    Languages Spoken:
    English

    Jeffrey Armstrong is a Pediatrics provider practicing medicine in Orange, California. Dr. Armstrong is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Cri-Du-Chat Syndrome, CHARGE Syndrome, Microcephaly Deafness Syndrome, and Early Infantile Epileptic Encephalopathy.

    Advanced in Koolen De Vries Syndrome
    Advanced in Koolen De Vries Syndrome
    Referral may be required

    Office

    1201 W La Veta Ave, 
    Orange, CA 
     (7.1 miles away)
    Languages Spoken:
    English

    Jennifer Lusk is a Pediatrics provider practicing medicine in Orange, California. Dr. Lusk is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Cerebral Hypoxia, Early Infantile Epileptic Encephalopathy, Wildervanck Syndrome, and CHARGE Syndrome.

    Advanced in Koolen De Vries Syndrome
    Pediatric Radiology
    Advanced in Koolen De Vries Syndrome
    Pediatric Radiology
    Referral may be required

    CHOC Children's Hospital

    1201 W La Veta Ave, 
    Orange, CA 
     (7.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Michael Chiang is a Pediatric Radiologist practicing medicine in Orange, California. Dr. Chiang is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Aseptic and Alopecic Nodules of Scalp (AANS), PIK3CA-Related Overgrowth Spectrum, Short Stature (Growth Disorders), and Idiopathic Short Stature (ISS). Dr. Chiang is currently accepting new patients.

    Advanced in Koolen De Vries Syndrome
    Pediatric Nephrology
    Advanced in Koolen De Vries Syndrome
    Pediatric Nephrology
    Referral may be required

    CHOC Children's Hospital

    1201 W La Veta Ave, 
    Orange, CA 
     (7.1 miles away)
    Languages Spoken:
    English

    John Nguyen is a Pediatric Nephrologist practicing medicine in Orange, California. Dr. Nguyen is rated as an Advanced provider by MediFind in the treatment of Koolen De Vries Syndrome. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Alport Syndrome, Nephrotic Syndrome, Minimal Change Disease, and Glomerulonephritis.

    Showing 1-20 of 199

    Last Updated: 09/26/2026

    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 near fountain valley, 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 Koolen De Vries Syndrome doctor near fountain valley, 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 does MediFind rank Koolen De Vries Syndrome doctors near fountain valley, 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 Koolen De Vries Syndrome doctors near fountain valley, 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 Koolen De Vries Syndrome doctor near fountain valley, 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 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 near fountain valley, 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 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 near fountain valley, CA?

    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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