The 20 Best RASopathies Doctors Near Me in arnold, MO

Find the Top RASopathies Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 31 doctor with experience in RASopathies near arnold, MO. Of these, 28 are Experienced, 2 are Advanced and 1 are Distinguished.

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31 providers found
    Experienced in RASopathies
    Dermatology
    Experienced in RASopathies
    Dermatology
    Referral may be required

    Meramec Dermatology

    3783 Vogel Rd, 
    Arnold, MO 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Karl Staser is a Dermatologist practicing medicine in Arnold, Missouri. Dr. Staser is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Neurocutaneous Melanosis, Epidermal Nevus, Neurofibromatosis, and Neurofibromatosis Type 1 (NF1). Dr. Staser is currently accepting new patients.

    Distinguished in RASopathies
    Distinguished in RASopathies
    Referral may be required

    Office

    4921 Parkview Pl Ste 6C, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michael Chicoine is a Neurosurgery provider practicing medicine in Saint Louis, Missouri. Dr. Chicoine is rated as a Distinguished provider by MediFind in the treatment of RASopathies. He is also highly rated in 72 other conditions, according to our data. His clinical expertise encompasses Meningioma, Pituitary Tumor, Brain Tumor, Endoscopic Transnasal Transsphenoidal Surgery, and Nerve Decompression. Dr. Chicoine is currently accepting new patients.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    St. Louis Children's Hospital

    1 Childrens Pl, 
    Saint Louis, MO 
     (14.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Susan Bayliss is a Pediatrics provider practicing medicine in Saint Louis, Missouri. Dr. Bayliss is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Legius Syndrome, Cardiofaciocutaneous Syndrome, Osteopoikilosis, and Aplasia Cutis Congenita. Dr. Bayliss is currently accepting new patients.

    Are you looking for a specific type of RASopathies?

    Common conditions include: Cardiofaciocutaneous Syndrome, Cardiomyopathic Lentiginosis, Costello Syndrome, Legius Syndrome, Noonan Syndrome

    Learn about our expert tiers
    Experienced in RASopathies
    Pediatric Cardiology | Pediatrics
    Experienced in RASopathies
    Pediatric Cardiology | Pediatrics
    Referral may be required
    1465 S. Grand Blvd., Dept. Of Cardiology, 
    St. Louis, MO 
     (14.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    David Lawrence is a Pediatric Cardiologist and a Pediatrics provider practicing medicine in St. Louis, Missouri. Dr. Lawrence is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Multifocal Atrial Tachycardia, His Bundle Tachycardia, Ventricular Fibrillation, and Arrhythmias. Dr. Lawrence is board certified in (Pediatrics, Pediatric Cardiology), American Board Of Pediatrics, Pediatric Cardiology, American Board Of Pediatrics/Pediatric Cardiology , American Board Of Pediatrics , Missouri Dept Of Health/Narcotics&Dangerous Drugs , (Pediatrics), Missouri State Board Of Registration, Drug Enforcement Administration , and American Board Of Pediatrics. Dr. Lawrence is currently accepting new patients.

    Experienced in RASopathies
    Neurology | Neurosurgery
    Experienced in RASopathies
    Neurology | Neurosurgery
    Referral may be required

    SLUCare Physician Group

    1225 S. Grand Blvd., Second Level, 
    St. Louis, MO 
     (14.4 miles away)
    Languages Spoken:
    English, Dutch, French
    Accepting New Patients

    Jeroen Coppens is a Neurologist and a Neurosurgery provider practicing medicine in St. Louis, Missouri. Dr. Coppens is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 29 other conditions, according to our data. His clinical expertise encompasses Meningioma, Posterior Fossa Tumor, Pituitary Tumor, Gastrostomy, and Awake Craniotomy. Dr. Coppens is board certified in Missouri Dept Of Health/Narcotics&Dangerous Drugs , Illinois Department Of Financial & Professional Regulation , Missouri State Board Of Registration, Drug Enforcement Administration , and American Board Of Neurological Surgery . Dr. Coppens is currently accepting new patients.

    Advanced in RASopathies
    Hematology | Oncology
    Advanced in RASopathies
    Hematology | Oncology
    Referral may be required

    Washington University

    660 S Euclid Ave, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    George Ansstas is a Hematologist and an Oncologist practicing medicine in Saint Louis, Missouri. Dr. Ansstas is rated as an Advanced provider by MediFind in the treatment of RASopathies. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Pediatric Low-Grade Glioma (pLGG), Metastatic Uveal Melanoma, RASopathies, Bone Marrow Aspiration, and Tissue Biopsy. Dr. Ansstas is currently accepting new patients.

    Advanced in RASopathies
    Neurosurgery
    Advanced in RASopathies
    Neurosurgery
    Referral may be required

    Washington University School Of Medicine

    4921 Parkview Pl, 
    Saint Louis, MO 
     (14.7 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Paul Santiago is a Neurosurgery provider practicing medicine in Saint Louis, Missouri. Dr. Santiago is rated as an Advanced provider by MediFind in the treatment of RASopathies. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Scoliosis, Cervical Spondylosis, Sciatica, Laminectomy, and Microdiscectomy. Dr. Santiago is currently accepting new patients.

    Experienced in RASopathies
    Experienced in RASopathies

    Quest Diagnostics

    3930 S Broadway, 
    Saint Louis, MO 
     (12.5 miles away)
    Languages Spoken:
    English, Spanish

    Thomas Kuciejczyk-Kernan is a primary care provider, practicing in Family Medicine in Saint Louis, Missouri. Dr. Kuciejczyk-Kernan is rated as an Experienced provider by MediFind in the treatment of RASopathies. His clinical expertise encompasses Familial Hyperthyroidism due to Mutations in TSH Receptor, Generalized Resistance to Thyroid Hormone, Thyroid Hormone Plasma Membrane Transport Defect, and Familial Hypertension.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required
    988 N Illinois Route 3, 
    Waterloo, IL 
     (13.5 miles away)
    Languages Spoken:
    English

    Katherine King is a Physiatrist practicing medicine in Waterloo, Illinois. Dr. King is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Legius Syndrome, Familial Multiple Lipomatosis, RASopathies, and PIK3CA-Related Overgrowth Spectrum.

    Experienced in RASopathies
    Internal Medicine
    Experienced in RASopathies
    Internal Medicine

    Thomas R Whalen MD LLC

    621 S New Ballas Rd, 
    Saint Louis, MO 
     (14.4 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Daniel Rey is a primary care provider, practicing in Internal Medicine in Saint Louis, Missouri. Dr. Rey is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, Sciatica, and Scoliosis. Dr. Rey is currently accepting new patients.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    Barnes Hospital Washington University

    510 S Kingshighway Blvd, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Michelle Miller-Thomas is a Neuroradiologist practicing medicine in Saint Louis, Missouri. Dr. Miller-Thomas is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Stroke, Cerebral Arteriovenous Malformation, RASopathies, and Pediatric Low-Grade Glioma (pLGG). Dr. Miller-Thomas is currently accepting new patients.

    Experienced in RASopathies
    Neuroradiology
    Experienced in RASopathies
    Neuroradiology
    Referral may be required

    Barnes Hospital Washington University

    510 S Kingshighway Blvd, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Katie Vo is a Neuroradiologist practicing medicine in Saint Louis, Missouri. Dr. Vo is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Stroke, Cerebral Arteriovenous Malformation, Pediatric Low-Grade Glioma (pLGG), Bone Marrow Aspiration, and Embolectomy. Dr. Vo is currently accepting new patients.

    Experienced in RASopathies
    Neuroradiology
    Experienced in RASopathies
    Neuroradiology
    Referral may be required

    Barnes Hospital Washington University

    510 S Kingshighway Blvd, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English, German
    Accepting New Patients

    Martin Reis is a Neuroradiologist practicing medicine in Saint Louis, Missouri. Dr. Reis is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Stroke, Sternal Cleft, Aseptic and Alopecic Nodules of Scalp (AANS), and Pediatric Low-Grade Glioma (pLGG). Dr. Reis is currently accepting new patients.

    Experienced in RASopathies
    Interventional Radiology
    Experienced in RASopathies
    Interventional Radiology
    Referral may be required

    Barnes Hospital Washington University

    510 S Kingshighway Blvd, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English, Spanish
    Accepting New Patients
    Offers Telehealth

    Carlos Guevara is an Interventional Radiologist practicing medicine in Saint Louis, Missouri. Dr. Guevara is rated as an Experienced provider by MediFind in the treatment of RASopathies. His clinical expertise encompasses Peripheral Artery Disease, Ascites, Cholangiocarcinoma (Bile Duct Cancer), Thrombectomy, and Vertebroplasty. Dr. Guevara is currently accepting new patients.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    Barnes Hospital Washington University

    510 S Kingshighway Blvd, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English

    Lawrence Kotner is a Radiologist practicing medicine in Saint Louis, Missouri. Dr. Kotner is rated as an Experienced provider by MediFind in the treatment of RASopathies. His clinical expertise encompasses Neurofibromatosis Type 2 (NF2) and RASopathies.

    Experienced in RASopathies
    Internal Medicine
    Experienced in RASopathies
    Internal Medicine

    Office

    4921 Parkview Pl Ste 7B, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Morey Blinder is a primary care provider, practicing in Internal Medicine in Saint Louis, Missouri. Dr. Blinder is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 127 other conditions, according to our data. His clinical expertise encompasses Sickle Cell Disease, Hemoglobin SC Disease, Anaplastic Large Cell Lymphoma, Acute Myeloblastic Leukemia with Maturation, and Thrombectomy. Dr. Blinder is currently accepting new patients.

    Experienced in RASopathies
    General Surgery
    Experienced in RASopathies
    General Surgery
    Referral may be required

    Office

    4921 Parkview Pl Ste 11A, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English

    Jonathan Mcjunkin is a General Surgeon practicing medicine in Saint Louis, Missouri. Dr. Mcjunkin is rated as an Experienced provider by MediFind in the treatment of RASopathies. His clinical expertise encompasses RASopathies, Neurofibromatosis, Neuroendocrine Tumor, Sheehan Syndrome, and Myringotomy.

    Experienced in RASopathies
    Neurosurgery
    Experienced in RASopathies
    Neurosurgery
    Referral may be required

    Office

    4921 Parkview Pl Ste 6C, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Albert Kim is a Neurosurgery provider practicing medicine in Saint Louis, Missouri. Dr. Kim is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 33 other conditions, according to our data. His clinical expertise encompasses Glioblastoma, Pituitary Tumor, Astrocytoma, Awake Craniotomy, and Balloon Sinuplasty. Dr. Kim is currently accepting new patients.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    Washington University

    660 S Euclid Ave, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    David Gutmann is a Neurologist practicing medicine in Saint Louis, Missouri. Dr. Gutmann is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Neurofibromatosis, Optic Glioma, Neurofibromatosis Type 1 (NF1), and Glioma. Dr. Gutmann is currently accepting new patients.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    Washington University

    660 S Euclid Ave, 
    Saint Louis, MO 
     (14.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Angela Hirbe is an Oncologist practicing medicine in Saint Louis, Missouri. Dr. Hirbe is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 27 other conditions, according to our data. Her clinical expertise encompasses Malignant Peripheral Nerve Sheath Tumor, Fibrosarcoma, Neurofibromatosis Type 1 (NF1), and Neurofibromatosis. Dr. Hirbe is currently accepting new patients.

    Showing 1-20 of 31

    Last Updated: 09/26/2026

    What is the definition of RASopathies?

    RASopathies are a group of rare syndromes causes by mutations in the genes that make proteins for the Ras/MAPK cell signaling pathway. This pathway controls cell functions such as cell growth, cell maturation, and cell death. There are several types of RASopathy syndromes, including cardiofaciocutaneous syndrome, Costello syndrome, Legius syndrome, neurofibromatosis type 1, Noonan syndrome, and capillary malformation-arteriovenous malformation syndrome.

    When should I see a RASopathies doctor near arnold, MO?

    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 RASopathies doctor near arnold, MO?

    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 RASopathies doctors near arnold, MO?

    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 RASopathies doctors near arnold, MO?

    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 RASopathies doctor near arnold, MO?

    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 RASopathies doctor search results page. 

    Why is it important to get a second opinion from a different RASopathies 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 RASopathies doctor near arnold, MO?

    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 RASopathies 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 RASopathies 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 RASopathies doctors near arnold, MO?

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

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