The 20 Best Williams Syndrome Doctors Near Me in New York, NY

Find the Top Williams Syndrome Experts and Specialists

The 20 Best Williams Syndrome Doctors near New York, NY

Last Updated: 02/22/2026

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MediFind found 34 doctor with experience in Williams Syndrome near New York, NY. Of these, 30 are Experienced and 3 are Advanced.

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34 providers found
    Ronald J. Wapner
    Experienced in Williams Syndrome
    Obstetrics and Gynecology | Neonatology | Medical Genetics
    Experienced in Williams Syndrome
    Obstetrics and Gynecology | Neonatology | Medical Genetics

    ColumbiaDoctors - Midtown

    51 West 51st Street, 
    New York, NY 
     (3.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Ronald Wapner is the Director of Reproductive Genetics and Professor of Obstetrics and Gynecology at Columbia University Irving Medical Center. Prior to Columbia University, Dr. Wapner was a Professor of Obstetrics and Gynecology at Drexel University College of Medicine and taught at Thomas Jefferson University for 22 years where he also served as the Director of Maternal Fetal Medicine. Dr. Wapner is an internationally known physician and researcher specializing in reproductive genetics. He pioneered the development of chorionic villus sampling (CVS) and multi-fetal reduction. He has authored or co-authored over 450 publications and he has been an active investigator in the area of Maternal-Fetal Medicine (MFM). Dr. Wapner is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Preeclampsia, High Blood Pressure in Infants, Gestational Diabetes, Chromosome 13q Duplication, and Hysterectomy.

    Jonathan Halperin
    Experienced in Williams Syndrome
    Experienced in Williams Syndrome

    Mount Sinai Hospital Cardiothoracic Surgery

    1190 5th Ave # 1023, 
    New York,, NY 
     (6.0 miles away)
    Languages Spoken:
    English

    Jonathan Halperin is a Cardiologist in New York,, New York. Dr. Halperin is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Atrial Fibrillation, Peripheral Artery Disease, Atherosclerosis, Percutaneous Coronary Intervention (PCI), and Thrombectomy.

    Advanced in Williams Syndrome
    Cardiology
    Advanced in Williams Syndrome
    Cardiology

    GP2 West

    1190 5th Ave, 
    New York, NY 
     (6.0 miles away)
    Languages Spoken:
    English

    Ali Zaidi is a Cardiologist in New York, New York. Dr. Zaidi is rated as an Advanced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Congenital Heart Disease (CHD), Pulmonary Valves Agenesis, Pulmonary Atresia, and Tricuspid Atresia.

    Learn about our expert tiers
    Bruce Gelb
    Experienced in Williams Syndrome
    Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatric Cardiology

    Mount Sinai

    1 Gustave L Levy Pl, 
    New York, NY 
     (6.1 miles away)
    Languages Spoken:
    English

    Bruce Gelb is a Pediatric Cardiologist in New York, New York. Dr. Gelb is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are RASopathies, Congenital Heart Disease (CHD), Cardiomyopathic Lentiginosis, Noonan Syndrome, and Heart Transplant.

    Advanced in Williams Syndrome
    Pediatric Cardiology
    Advanced in Williams Syndrome
    Pediatric Cardiology

    Morgan Stanley Children's Hospital Of New York-Presbyterian

    3959 Broadway Fl Chn, 
    New York, NY 
     (9.3 miles away)
    Languages Spoken:
    English

    Seema Mital is a Pediatric Cardiologist in New York, New York. Dr. Mital is rated as an Advanced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Hypertrophic Cardiomyopathy (HCM), Cardiomyopathy, Hypoplastic Left Heart Syndrome (HLHS), Congenital Heart Disease (CHD), and Heart Transplant.

    Matthew A. Crystal
    Experienced in Williams Syndrome
    Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatric Cardiology

    CUIMC/NewYork-Presbyterian Morgan Stanley Children's Hospital

    3959 Broadway, 
    New York, NY 
     (9.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Matthew Crystal, MD FACC FSCAI is an Associate Professor of Pediatrics at the Columbia University Medical Center in New York, NY. He obtained his medical degree from the University of Western Ontario in 2001 before completing a Pediatrics residency, Pediatric Cardiology Fellowship and Pediatric Interventional Cardiology Fellowship at Sick Kids Hospital, University of Toronto in 2008. He worked as an attending in the Pediatric Catheterization Laboratory at Texas Children's before joining the team at NYP Morgan Stanley Children's Hospital in 2012.He serves as the Associate Director of the Pediatric Catheterization Laboratory at Morgan Stanley Children’s Hospital New York Presbyterian and is the Director of the recently created Fetal Cardiac Intervention Team at NYP. Dr. Crystal is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Pulmonary Atresia, Coronary Artery Fistula, Ventricular Septal Defects, Stent Placement, and Angioplasty.

    Julie S. Glickstein
    Experienced in Williams Syndrome
    Pediatrics | Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatrics | Pediatric Cardiology

    CUIMC/NewYork-Presbyterian Morgan Stanley Children's Hospital

    3959 Broadway, 
    New York, NY 
     (9.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Julie Glickstein is a Professor of Pediatrics at Columbia University Medical Center. She completed her residency and fellowship in Pediatrics and Pediatric Cardiology at NYU Medical Center. In 2001, she came to Columbia University Medical Center and joined the Department of Pediatrics in the Division of Pediatric Cardiology. Her clinical and research interests are in Fetal and Pediatric Echocardiography. She has been involved in many multicenter studies around the country and was recently selected to serve as a rating panelist for the development of Appropriate Use Criteria for multi-modality imaging in congenital heart disease. Dr. Glickstein is very involved in medical education both at the medical school level and the postgraduate level. Dr. Glickstein teaches first through fourth-year medical students at the Columbia University Vagelos College of Physicians and Surgeons, as a small-group preceptor for the Foundation of Clinical Medicine I, II and III and IV courses and well as is a preceptor for the Major Clinical Year. Dr. Glickstein is currently the Director of the Pediatric Cardiology Fellowship Program for the Division of Pediatric Cardiology at CHONY/ Columbia University. Dr. Glickstein was selected to be a member of the Virginia Apgar Academy of Medical Educators ( 2013) and was appointed as a Member to the Academy of Clinical Mentoring and Excellence at Columbia University Medical Center (2016).Dr. Glickstein is a fellow of the American Academy of Pediatrics and the American College of Cardiology. She is a member of many professional organizations including the American Heart Association, the American College of Cardiology, the American Society of Echocardiography, the New York Pediatric Cardiology Society of Greater New York and the Fetal Heart Society. She sits on several national committees, including the Society of Pediatric Cardiology Training Program Directors (American Academy of Pediatrics), the Publications and Communications Committee and the Congenital Heart Disease Public Health Workgroup for the American Academy of Pediatrics/ Section on Cardiology and Cardiothoracic Surgery. Dr. Glickstein is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Congenital Heart Disease (CHD), Double Aortic Arch, Tetralogy of Fallot, and Coarctation of the Aorta.

    Ellis Rochelson
    Experienced in Williams Syndrome
    Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatric Cardiology

    CUIMC/NewYork-Presbyterian Morgan Stanley Children's Hospital

    3959 Broadway, 
    New York, NY 
     (9.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ellis Rochelson is a Pediatric Cardiologist in New York, New York. Dr. Rochelson is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Arrhythmias, His Bundle Tachycardia, Ventricular Fibrillation, and Wolff-Parkinson-White Syndrome. Dr. Rochelson is currently accepting new patients.

    Matthew J. Lewis
    Experienced in Williams Syndrome
    Internal Medicine | Cardiology
    Experienced in Williams Syndrome
    Internal Medicine | Cardiology

    CUIMC/Herbert Irving Pavilion

    161 Fort Washington Avenue, 
    New York, NY 
     (9.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Matthew Lewis MD MPH is a cardiologist who specializes in general cardiology and adult congenital heart disease. He has a clinical interest in complex congenital heart disease and is a co-director of the Adult Single Ventricle Clinic at Columbia University Medical Center and serves as the director of the Adult Congenital Heart Disease Research Program. Dr. Lewis is board certified in Cardiovascular Medicine and Adult Congenital Heart Disease.Dr. Lewis completed his MD and Masters in Public Health from Harvard Medical School. Following, he completed the Harvard combined Internal Medicine and Pediatrics Residency at Brigham and Women’s Hospital and Boston Children’s Hospital where he served as Chief Resident. After residency, Dr. Lewis completed fellowship training at NewYork-Presbyterian Hospital/Columbia University Medical Center where he also served as Chief Fellow prior to completing an Adult Congenital Heart Disease Fellowship.Dr. Lewis has experience with patient care, teaching and research and has received grant funding from the National Institute of Health and Adult Congenital Heart Association as a primary investigator and from the Department of Defense as a co-investigator. He has published extensively in the field of Congenital Heart Disease and has particular research focus on utilizing translational research and genomics to improve the outcomes of patients with single ventricle physiology.Dr. Lewis sees patients at Columbia University Medical Center in Washington Heights, NY. Dr. Lewis is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Congenital Heart Disease (CHD), Tetralogy of Fallot, Subvalvular Aortic Stenosis, Cor Triatriatum, and Heart Transplant.

    Experienced in Williams Syndrome
    Thoracic Surgery
    Experienced in Williams Syndrome
    Thoracic Surgery

    Pediatric Cardiac Surgery At Weill Cornell Medical Center

    525 E 68th St # F677, 
    New York, NY 
     (4.2 miles away)
    Languages Spoken:
    English

    Emile Bacha is a Thoracic Surgeon in New York, New York. Dr. Bacha is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Ebstein's Anomaly, Ventricular Septal Defects, Tetralogy of Fallot, Heart Valve Repair, and Heart Transplant.

    Experienced in Williams Syndrome
    Internal Medicine
    Experienced in Williams Syndrome
    Internal Medicine

    Interfaith Medical Center

    1545 Atlantic Ave, 
    Brooklyn, NY 
     (4.3 miles away)
    Languages Spoken:
    English

    Hemamalini Sakthivel is a primary care provider, practicing in Internal Medicine in Brooklyn, New York. Dr. Sakthivel is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Cardiogenic Shock, COVID-19, Sepsis, Atherectomy, and Angioplasty.

    Experienced in Williams Syndrome
    Medical Genetics | Pediatrics
    Experienced in Williams Syndrome
    Medical Genetics | Pediatrics

    Weill Medical College Of Cornell

    525 E 68th St, 
    New York, NY 
     (4.5 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English
    Offers Telehealth

    Jennifer Bassetti is a Medical Genetics specialist and a Pediatrics provider in New York, New York. Dr. Bassetti has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Fountain Syndrome, Frontometaphyseal Dysplasia, Intrauterine Growth Restriction, Williams Syndrome, and Deep Brain Stimulation.

    Experienced in Williams Syndrome
    Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatric Cardiology

    Mount Sinai

    1468 Madison Ave, 
    New York,, NY 
     (6.0 miles away)
    Languages Spoken:
    English

    Son Duong is a Pediatric Cardiologist in New York,, New York. Dr. Duong is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Pulmonary Atresia with Intact Ventricular Septum, Right Ventricle Hypoplasia, Ventricular Septal Defects, and Tetralogy of Fallot.

    Experienced in Williams Syndrome
    Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatric Cardiology

    Mount Sinai

    1468 Madison Ave, 
    New York, NY 
     (6.0 miles away)
    Languages Spoken:
    English

    Nadine Choueiter is a Pediatric Cardiologist in New York, New York. Dr. Choueiter is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Kawasaki Disease, Coronary Artery Aneurysm, Multisystem Inflammatory Syndrome in Children (MIS-C), and Vasculitis.

    Experienced in Williams Syndrome
    Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatric Cardiology

    Mount Sinai

    1468 Madison Ave, 
    New York,, NY 
     (6.0 miles away)
    Languages Spoken:
    English

    Robert Pass is a Pediatric Cardiologist in New York,, New York. Dr. Pass is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Wolff-Parkinson-White Syndrome, Transposition of the Great Arteries, Tetralogy of Fallot, Cardiac Ablation, and Heart Transplant.

    Experienced in Williams Syndrome
    Pediatric Cardiology
    Experienced in Williams Syndrome
    Pediatric Cardiology

    Mount Sinai

    1468 Madison Ave, 
    New York, NY 
     (6.0 miles away)
    Languages Spoken:
    English

    Joseph Mahgerefteh is a Pediatric Cardiologist in New York, New York. Dr. Mahgerefteh is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Kawasaki Disease, Pulmonary Atresia with Intact Ventricular Septum, Right Ventricle Hypoplasia, Ventricular Septal Defects, and Heart Transplant.

    Experienced in Williams Syndrome
    Experienced in Williams Syndrome

    CUIMC/NewYork-Presbyterian Morgan Stanley Children's Hospital

    3959 Broadway, 
    New York,, NY 
     (9.4 miles away)
    Languages Spoken:
    English

    Alejandro Torres is a Pediatrics provider in New York,, New York. Dr. Torres is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Mitral Atresia, Hypoplastic Left Heart Syndrome (HLHS), Truncus Arteriosus, and Ebstein's Anomaly.

    Robert W. Marion
    Advanced in Williams Syndrome
    Advanced in Williams Syndrome

    The Children's Hospital At Montefiore

    3415 Bainbridge Avenue, 
    Bronx, NY 
     (13.3 miles away)
    Languages Spoken:
    English

    Dr. Marion is Executive Director of the Children’s Evaluation and Rehabilitation Center and the University Center of Excellence in Developmental Disabilities at the Rose F. Kennedy Center. He is Chief of the Divisions of Genetics and of Development Medicine at the Children’s Hospital at Montefiore and Director of the Center for Congenital Disorders. A faculty member at Einstein since 1984, Dr. Marion’s interests include the natural history and genetic basis of multiple malformation syndromes. At The Children’s Hospital at Montefiore he has served as Medical Director of the Spina Bifida Center for 20 years, is the founder and Medical Director of the Williams Syndrome Center, and helped organize the Center for CardioG enetics, the Neurofibromatosis Center, and the Center for Excellence in Autism. He has published extensively in the medical literature in these areas and, in addition, is the author of seven books. Dr. Marion is rated as an Advanced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Mucopolysaccharidosis Type 7 (MPS VII, Sly Syndrome), Mucopolysaccharidosis Type 6 (MPS VI, Maroteaux-Lamy Syndrome), N-Acetyl-Alpha-D-Galactosaminidase Deficiency Type 3, and Mucopolysaccharidoses (MPS).

    Eric S. Silver
    Experienced in Williams Syndrome
    Pediatrics | Pediatric Cardiology | Cardiac Electrophysiology
    Experienced in Williams Syndrome
    Pediatrics | Pediatric Cardiology | Cardiac Electrophysiology

    CUIMC/NewYork-Presbyterian Morgan Stanley Children's Hospital

    3959 Broadway, 
    New York, NY 
     (9.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Eric Silver, MD, is an Assistant Professor of Pediatrics who upon completion of his training in pediatric cardiology went on to advanced training in arrhythmia management in children and patients with congenital heart disease. He is a certified specialist in pediatric electrophysiology. His research has focused on invasive management of AV nodal reentrant tachycardia in children, a form of supraventricular tachycardia, the safety of a medication to treat arrhythmias in children who have had heart transplants, and he has participated in various research projects through the Pediatric Heart Network. He is active in teaching cardiology fellows, pediatric residents, and medical students at Columbia University Medical Center. Dr. Silver is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Heart Block, Wolff-Parkinson-White Syndrome, Pediatric Myocarditis, Heart Transplant, and Cardiac Ablation.

    Arnar Geirsson
    Experienced in Williams Syndrome
    Thoracic Surgery | General Surgery
    Experienced in Williams Syndrome
    Thoracic Surgery | General Surgery

    CUIMC/Milstein Hospital Building

    177 Ft. Washington Avenue, 
    New York, NY 
     (9.5 miles away)
    Languages Spoken:
    English, Icelandic
    Accepting New Patients
    Offers Telehealth

    Dr. Geirsson is a renowned cardiac surgeon, Chief of Cardiac Surgery, and the Director of the Cardiovascular Institute at NewYork-Presbyterian/Columbia University Irving Medical Center. With an upbringing and medical education in Iceland, he honed his skills in General Surgery at Yale University and Cardiothoracic Surgery at the University of Pennsylvania between 1998 and 2007. During his tenure at Yale as the Director of Minimally Invasive Cardiac Surgery from 2007 to 2013, he made significant contributions to the field. Dr. Geirsson then returned to Iceland from 2013 to 2016, serving as a Cardiothoracic Surgeon at Landspitali University Hospital in Reykjavik. Driven by his passion for innovative approaches, he returned to Yale in 2016 and was appointed as the Chief of the Division of Cardiac Surgery in 2017. He joined Columbia/NewYork-Presbyterian in 2023.Dr. Geirsson's clinical practice focuses on minimally invasive cardiac surgery and valve surgery, specializing in robotic mitral valve repair and aortic valve repair. He achieved notable milestones by performing the first minimally right thoracotomy mitral valve surgery at YNHH in 2009 and the first robotic mitral valve surgery at YNHH in 2018. Moreover, his research endeavors encompass both basic and clinical science, concentrating on mitral valve prolapse and valve disease.With his expertise, dedication, and commitment to advancing cardiac surgery, Dr. Geirsson continues to make significant contributions to the field and improve patient outcomes. Dr. Geirsson is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Mitral Valve Regurgitation, Aortic Dissection, Endocarditis, Heart Bypass Surgery, and Aortic Valve Replacement.

    Showing 1-20 of 34

    Last Updated: 02/22/2026

    What is the definition of Williams Syndrome?

    Williams syndrome is a rare disorder that can lead to problems with development.

    When should I see a Williams Syndrome doctor near New York, NY?

    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 Williams Syndrome doctor near New York, NY?

    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 Williams Syndrome doctors near New York, NY?

    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 Williams Syndrome doctors near New York, NY?

    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 Williams Syndrome doctor near New York, NY?

    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 Williams Syndrome doctor search results page. 

    Why is it important to get a second opinion from a different Williams 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 Williams Syndrome doctor near New York, NY?

    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 Williams 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 Williams 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 Williams Syndrome doctors near New York, NY?

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

    Look for the filter feature on the left-side of the Williams 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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