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    Last Updated: 10/30/2025

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    MediFind found 17 doctor with experience in Williams Syndrome near Grand Rapids, MI. Of these, 15 are Experienced and 2 are Advanced.

    Location
    LocationClose
    17 providers found
      Sarah E. Fahnhorst
      Advanced in Williams Syndrome
      Advanced in Williams Syndrome

      Corewell Health Pediatric Congenital Cardiology - 25 Michigan St NE

      25 Michigan Street Northeast, Suite 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      13+ years
      Languages Spoken:
      English

      Sarah Fahnhorst is a Cardiologist in Grand Rapids, Michigan. Dr. Fahnhorst has been practicing medicine for over 13 years and is rated as an Advanced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Double Discordia, Tetralogy of Fallot, Bicuspid Aortic Valve, and Ebstein's Anomaly.

      Kim G. Lee
      Advanced in Williams Syndrome
      Pediatric Cardiology
      Advanced in Williams Syndrome
      Pediatric Cardiology

      Corewell Health Pediatric Congenital Cardiology - 25 Michigan St NE

      25 Michigan Street Northeast, Suite 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      35+ years
      Languages Spoken:
      English
      Accepting New Patients

      Kim Lee is a Pediatric Cardiologist in Grand Rapids, Michigan. Dr. Lee has been practicing medicine for over 35 years and is rated as an Advanced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Ventricular Septal Defects, Bicuspid Aortic Valve, Heart Murmurs, and Patent Ductus Arteriosus. Dr. Lee is currently accepting new patients.

      Jeffrey R. Schneider
      Experienced in Williams Syndrome
      Pediatric Cardiology
      Experienced in Williams Syndrome
      Pediatric Cardiology

      Corewell Health Pediatric Congenital Cardiology - 25 Michigan St NE

      25 Michigan Street Northeast, Suite 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      39+ years
      Languages Spoken:
      English
      Accepting New Patients

      Jeffrey Schneider is a Pediatric Cardiologist in Grand Rapids, Michigan. Dr. Schneider has been practicing medicine for over 39 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Ventricular Septal Defects, Bicuspid Aortic Valve, Patent Ductus Arteriosus, and Pulmonary Artery Agenesis. Dr. Schneider is currently accepting new patients.

      Learn about our expert tiers
      Jason P. Thomas
      Experienced in Williams Syndrome
      Pediatric Nephrology
      Experienced in Williams Syndrome
      Pediatric Nephrology

      Corewell Health Pediatric Nephrology - 35 Michigan St NE

      35 Michigan Street Northeast, Suite 5201, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      13+ years
      Languages Spoken:
      English
      Accepting New Patients

      Jason Thomas is a Pediatric Nephrologist in Grand Rapids, Michigan. Dr. Thomas has been practicing medicine for over 13 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Nephrotic Syndrome, Glomerulonephritis, Lowe Syndrome, and Wolf-Hirschhorn Syndrome. Dr. Thomas is currently accepting new patients.

      James L. Loker
      Experienced in Williams Syndrome
      Cardiology | Pediatric Cardiology
      Experienced in Williams Syndrome
      Cardiology | Pediatric Cardiology

      Corewell Health Pediatric Congenital Cardiology - 25 Michigan St NE

      25 Michigan Street Northeast, Suite 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      40+ years
      Languages Spoken:
      English

      James Loker is a Cardiologist and a Pediatric Cardiologist in Grand Rapids, Michigan. Dr. Loker has been practicing medicine for over 40 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Heart Murmurs, Ventricular Septal Defects, Idiopathic Dilatation of the Pulmonary Artery, and Pulmonary Vein Stenosis.

      Megan D. Quist
      Experienced in Williams Syndrome
      Experienced in Williams Syndrome

      Corewell Health Pediatric Neurodevelopmental - Grand Rapids

      35 Michigan Street Northeast, Suite 3003, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      12+ years
      Languages Spoken:
      English

      Megan Quist is a Pediatrics provider in Grand Rapids, Michigan. Dr. Quist has been practicing medicine for over 12 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Autism Spectrum Disorder, Microcephaly, DiGeorge Syndrome, and Developmental Dysphasia Familial.

      Julie A. Conley
      Experienced in Williams Syndrome
      Experienced in Williams Syndrome

      Corewell Health Pediatric Ophthalmology - 35 Michigan St NE

      35 Michigan Street Northeast, Suite 5101, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      17+ years
      Languages Spoken:
      English

      Julie Conley is a Pediatrics provider in Grand Rapids, Michigan. Dr. Conley has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. Her top areas of expertise are Strabismus, Legius Syndrome, Esotropia, and RASopathies.

      Christopher Ratnasamy
      Experienced in Williams Syndrome
      Pediatrics | Cardiology | Pediatric Cardiology
      Experienced in Williams Syndrome
      Pediatrics | Cardiology | Pediatric Cardiology

      Corewell Health Pediatric Congenital Cardiology - 25 Michigan St NE

      25 Michigan Street Northeast, Suite 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      31+ years
      Languages Spoken:
      English
      Accepting New Patients

      Christopher Ratnasamy is a Cardiologist and a Pediatrics provider in Grand Rapids, Michigan. Dr. Ratnasamy has been practicing medicine for over 31 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Congenital Heart Block, Brugada Syndrome, Short QT Syndrome, and Postural Orthostatic Tachycardia Syndrome (POTS). Dr. Ratnasamy is currently accepting new patients.

      Heather A. Sowinski
      Experienced in Williams Syndrome
      Pediatric Cardiology
      Experienced in Williams Syndrome
      Pediatric Cardiology

      Corewell Health Pediatric Congenital Cardiology - 25 Michigan St NE

      25 Michigan Street Northeast, Suite 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      18+ years
      Languages Spoken:
      English

      Heather Sowinski is a Pediatric Cardiologist in Grand Rapids, Michigan. Dr. Sowinski 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 Turner Syndrome, Mixed Gonadal Dysgenesis, Heart Tumor, and Atrial Myxoma.

      Experienced in Williams Syndrome
      Pediatric Nephrology | Pediatrics
      Experienced in Williams Syndrome
      Pediatric Nephrology | Pediatrics

      Spectrum Health Primary Care Partners

      35 Michigan St Ne, 3003 Corewell Health Medic, 
      Grand Rapids, MI 
       (0.3 miles away)
      Languages Spoken:
      English, German
      Accepting New Patients

      Jens Goebel is a Pediatric Nephrologist and a Pediatrics provider in Grand Rapids, Michigan. Dr. Goebel is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Nephrotic Syndrome, Glomerulonephritis, Hypertension, Focal Segmental Glomerulosclerosis, and Kidney Transplant. Dr. Goebel is currently accepting new patients.

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

      Corewell Health Pediatric Congenital Cardiology - 25 Michigan St NE

      25 Michigan Street Northeast, Suite 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Experience:
      35+ years
      Languages Spoken:
      English
      Accepting New Patients

      Osama Eltayeb is a General Surgeon and a Thoracic Surgeon in Grand Rapids, Michigan. Dr. Eltayeb has been practicing medicine for over 35 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Vascular Ring, Double Aortic Arch, Congenital Tracheomalacia, Atrioventricular Septal Defect, and Heart Transplant. Dr. Eltayeb is currently accepting new patients.

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

      Office

      25 Michigan St NE Ste 4200, 
      Grand Rapids, MI 
       (0.9 miles away)
      Languages Spoken:
      English

      James Hammel is a Thoracic Surgeon in Grand Rapids, Michigan. Dr. Hammel is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Pulmonary Valve Stenosis, Hypoplastic Left Heart Syndrome (HLHS), Congenital Heart Disease (CHD), Mitral Atresia, and Heart Transplant.

      Nagib T. Chalfoun
      Experienced in Williams Syndrome
      Cardiac Electrophysiology | Cardiology | Nuclear Medicine
      Experienced in Williams Syndrome
      Cardiac Electrophysiology | Cardiology | Nuclear Medicine

      Corewell Health Cardiovascular Services - Bradford

      2900 Bradford Street Northeast, 
      Grand Rapids, MI 
       (5.4 miles away)
      Experience:
      26+ years
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Nagib Chalfoun is a Cardiac Electrophysiologist and a Cardiologist in Grand Rapids, Michigan. Dr. Chalfoun has been practicing medicine for over 26 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Atrial Fibrillation, Cardiomyopathy, Arrhythmias, Pacemaker Implantation, and Cardiac Ablation. Dr. Chalfoun is currently accepting new patients.

      Richard F. Namara
      Experienced in Williams Syndrome
      Interventional Cardiology | Cardiology
      Experienced in Williams Syndrome
      Interventional Cardiology | Cardiology

      Corewell Health Cardiovascular Services - Bradford

      2900 Bradford Street Northeast, 
      Grand Rapids, MI 
       (5.4 miles away)
      Experience:
      46+ years
      Languages Spoken:
      English
      Accepting New Patients

      Richard Namara is a Cardiologist in Grand Rapids, Michigan. Dr. Namara has been practicing medicine for over 46 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Heart Attack, Cardiomyopathy, Apoplexy, Cardiac Ablation, and Heart Bypass Surgery. Dr. Namara is currently accepting new patients.

      Jeffrey S. Mantia
      Experienced in Williams Syndrome
      Experienced in Williams Syndrome

      Grandville Pediatrics

      2845 44th Street Southwest, Suite 200, 
      Grandville, MI 
       (8.0 miles away)
      Experience:
      33+ years
      Languages Spoken:
      English
      Accepting New Patients

      Jeffrey Mantia is a Pediatrics provider in Grandville, Michigan. Dr. Mantia has been practicing medicine for over 33 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Obesity in Children, Croup, Herpangina, and Autism Spectrum Disorder. Dr. Mantia is currently accepting new patients.

      Benjamin R. Schipper
      Experienced in Williams Syndrome
      Pediatrics | Internal Medicine
      Experienced in Williams Syndrome
      Pediatrics | Internal Medicine

      Corewell Health Family Medicine, Internal Medicine And Pediatrics - Rivertown

      3185 Macatawa Drive Southwest, Suite A, 
      Grandville, MI 
       (8.0 miles away)
      Experience:
      23+ years
      Languages Spoken:
      English

      Benjamin Schipper is a primary care provider, practicing in Pediatrics and Internal Medicine in Grandville, Michigan. Dr. Schipper has been practicing medicine for over 23 years and is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Obesity in Children, Food Allergy, Down Syndrome, and Hashimoto Thyroiditis.

      Experienced in Williams Syndrome
      Family Medicine
      Experienced in Williams Syndrome
      Family Medicine

      Internal Medicine And Pediatrics Of West Michigan LLC

      655 Kenmoor Ave Se, Suite 200, 
      Grand Rapids, MI 
       (5.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      David Meyer is a primary care provider, practicing in Family Medicine in Grand Rapids, Michigan. Dr. Meyer is rated as an Experienced provider by MediFind in the treatment of Williams Syndrome. His top areas of expertise are Cellulitis, Viral Pharyngitis, Common Cold, and Sinusitis. Dr. Meyer is currently accepting new patients.

      Showing 1-17 of 17

      Last Updated: 10/30/2025

      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 Grand Rapids, MI?

      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 Grand Rapids, MI?

      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 Grand Rapids, MI?

      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 Grand Rapids, MI?

      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 Grand Rapids, MI?

      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 Grand Rapids, MI?

      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 Grand Rapids, MI?

      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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