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    Last Updated: 10/30/2025

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    MediFind found 77 doctor with experience in RASopathies near Colorado, US. Of these, 74 are Experienced, 2 are Advanced and 1 are Distinguished.

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    LocationClose
    77 providers found
      Distinguished in RASopathies
      Pediatric Cardiology | Advanced Heart Failure and Transplant Cardiology | Medical Genetics
      Distinguished in RASopathies
      Pediatric Cardiology | Advanced Heart Failure and Transplant Cardiology | Medical Genetics
      13123 E 16th Ave, 
      Aurora, CO 
      Languages Spoken:
      English
      Accepting New Patients

      Kathryn Chatfield is a Pediatric Cardiologist and an Advanced Heart Failure and Transplant Cardiologist in Aurora, Colorado. Dr. Chatfield is rated as a Distinguished provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Noonan Syndrome, RASopathies, Costello Syndrome, Cardiomyopathic Lentiginosis, and Heart Transplant. Dr. Chatfield is currently accepting new patients.

      Experienced in RASopathies
      Family Medicine
      Experienced in RASopathies
      Family Medicine

      Alpine Medical Group Colorado - DBA Colorado Physician Partners

      2200 East 104th Avenue, Suite 115, 
      Thornton, CO 
      Languages Spoken:
      English

      James Weingart is a primary care provider, practicing in Family Medicine in Thornton, Colorado. Dr. Weingart is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Gout, Sitosterolemia, Insomnia, and Legius Syndrome.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in RASopathies
      Family Medicine
      Advanced in RASopathies
      Family Medicine

      Optumcare Colorado Medical Group LLC

      2610 Tenderfoot Hill St, 
      Colorado Springs, CO 
      Languages Spoken:
      English

      Leighton Tewes is a primary care provider, practicing in Family Medicine in Colorado Springs, Colorado. Dr. Tewes is rated as an Advanced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Legius Syndrome, RASopathies, Type 2 Diabetes (T2D), and High Cholesterol.

      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
      Advanced in RASopathies
      Advanced in RASopathies

      University Physicians Incorporated

      13123 E 16th Ave, 
      Aurora, CO 
      Languages Spoken:
      English
      Accepting New Patients

      Douglas Ney is a Neurologist in Aurora, Colorado. Dr. Ney is rated as an Advanced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Astrocytoma, Glioblastoma, Glioma, and Brain Tumor. Dr. Ney is currently accepting new patients.

      Experienced in RASopathies
      Pediatric Endocrinology
      Experienced in RASopathies
      Pediatric Endocrinology
      8200 E Belleview Ave, #510e, 
      Greenwood Village, CO 
      Languages Spoken:
      English

      Sunil Nayak is a Pediatric Endocrinologist in Greenwood Village, Colorado. Dr. Nayak is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Pediatric Growth Hormone Deficiency, Growth Hormone Deficiency (GHD), Sheehan Syndrome, and Hypogonadism.

      Experienced in RASopathies
      Pediatric Hematology Oncology
      Experienced in RASopathies
      Pediatric Hematology Oncology

      University Physicians Incorporated

      13123 E 16th Ave, 
      Aurora, CO 
      Languages Spoken:
      English

      Nicholas Foreman is a Pediatric Hematologist Oncology provider in Aurora, Colorado. Dr. Foreman is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Medulloblastoma, Ganglioglioma, Glioma, and Rhabdoid Tumor.

      Experienced in RASopathies
      Medical Genetics | Pediatrics
      Experienced in RASopathies
      Medical Genetics | Pediatrics

      University Physicians Incorporated

      13123 E 16th Ave, 
      Aurora, CO 
      Languages Spoken:
      English
      Accepting New Patients

      Ellen Elias is a Medical Genetics specialist and a Pediatrics provider in Aurora, Colorado. Dr. Elias is rated as an Experienced provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Smith-Lemli-Opitz Syndrome, Ehlers-Danlos Syndrome (EDS), Musculocontractural Ehlers-Danlos Syndrome (mcEDS), and Delayed Growth. Dr. Elias is currently accepting new patients.

      Experienced in RASopathies
      Physician Assistant
      Experienced in RASopathies
      Physician Assistant

      University Physicians Incorporated

      1635 Aurora Ct, 
      Aurora, CO 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Colin Catel is a Physician Assistant in Aurora, Colorado. Mr. Catel is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Rathke Cleft Cyst, Pediatric Low-Grade Glioma (pLGG), Neurofibromatosis, and RASopathies. Mr. Catel is currently accepting new patients.

      Experienced in RASopathies
      Experienced in RASopathies
      1633 Medical Center Point, 
      Colorado Springs, CO 
      Languages Spoken:
      English

      Kristen Lachance is a Radiologist in Colorado Springs, Colorado. Dr. Lachance is rated as an Experienced provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Tenosynovitis, Lump in the Abdomen, Scrotal Swelling, and Emphysema.

      Experienced in RASopathies
      Medical Genetics
      Experienced in RASopathies
      Medical Genetics

      University Physicians Incorporated

      12605 E 16th Ave, Uchealth Anschutz Medical, 
      Aurora, CO 
      Languages Spoken:
      English
      Offers Telehealth

      Matthew Taylor is a Medical Genetics provider in Aurora, Colorado. Dr. Taylor is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Danon Disease, Gaucher Disease Type 1, Gaucher Disease, and Fabry Disease.

      Experienced in RASopathies
      Pediatric Gastroenterology | Pediatrics
      Experienced in RASopathies
      Pediatric Gastroenterology | Pediatrics
      9224 Teddy Ln Ste 200, 
      Lone Tree, CO 
      Languages Spoken:
      English

      Timothy Hadley is a Pediatric Gastroenterologist and a Pediatrics provider in Lone Tree, Colorado. Dr. Hadley is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Celiac Disease, Delayed Growth, Eosinophilic Esophagitis, and Gastroesophageal Reflux Disease (GERD).

      Experienced in RASopathies
      Pediatric Hematology Oncology
      Experienced in RASopathies
      Pediatric Hematology Oncology
      13123 E 16th Ave, 
      Aurora, CO 
      Languages Spoken:
      English

      Taizo Nakano is a Pediatric Hematologist Oncology provider in Aurora, Colorado. Dr. Nakano is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Aplastic Anemia, Shwachman-Diamond Syndrome, Anemia, Chronic Graft Versus Host Disease (cGvHD), and Bone Marrow Transplant.

      Experienced in RASopathies
      Neurosurgery
      Experienced in RASopathies
      Neurosurgery

      University Physicians Incorporated

      13123 E 16th Ave, 
      Aurora, CO 
      Languages Spoken:
      English
      Offers Telehealth

      Kevin Lillehei is a Neurosurgery provider in Aurora, Colorado. Dr. Lillehei is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Pituitary Tumor, Hypothalamic Tumor, Brain Tumor, Awake Craniotomy, and Gamma Knife Radiosurgery.

      Experienced in RASopathies
      Cardiology | Interventional Cardiology
      Experienced in RASopathies
      Cardiology | Interventional Cardiology
      1444 S Potomac St, Suite 300, 
      Aurora, CO 
      Languages Spoken:
      English, Spanish
      Accepting New Patients

      Richard Jantz is a Cardiologist and an Interventional Cardiologist in Aurora, Colorado. Dr. Jantz is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Cardiomyopathy, Bicuspid Aortic Valve, Arrhythmogenic Right Ventricular Cardiomyopathy, and Atherosclerosis. Dr. Jantz is currently accepting new patients.

      Experienced in RASopathies
      Pediatrics
      Experienced in RASopathies
      Pediatrics
      13402 W Coal Mine Ave, Suite 200, 
      Littleton, CO 
      Languages Spoken:
      English
      Accepting New Patients

      Eric Shaw is a Pediatrics provider in Littleton, Colorado. Dr. Shaw is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Croup, Obesity in Children, Delayed Growth, and Jaundice. Dr. Shaw is currently accepting new patients.

      Experienced in RASopathies
      Pediatric Cardiology
      Experienced in RASopathies
      Pediatric Cardiology

      Rocky Mountain Pediatric Cardiology

      2055 North High Street, Suite 255, 
      Denver, CO 
      Experience:
      37+ years
      Languages Spoken:
      English, Spanish
      Accepting New Patients

      David Miller is a Pediatric Cardiologist in Denver, Colorado. Dr. Miller has been practicing medicine for over 37 years and is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Patent Ductus Arteriosus, Patent Foramen Ovale, Atrial Septal Defect (ASD), and Bicuspid Aortic Valve. Dr. Miller is currently accepting new patients.

      Experienced in RASopathies
      Pediatric Hematology Oncology
      Experienced in RASopathies
      Pediatric Hematology Oncology
      13123 E 16th Ave, 
      Aurora, CO 
      Languages Spoken:
      English

      Lindsey Hoffman is a Pediatric Hematologist Oncology provider in Aurora, Colorado. Dr. Hoffman is rated as an Experienced provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Brain Stem Cancer, Diffuse Midline Glioma H3 K27M-Mutant, Glioma, Rhabdoid Tumor, and Gamma Knife Radiosurgery.

      Experienced in RASopathies
      Otolaryngology
      Experienced in RASopathies
      Otolaryngology

      University Physicians Incorporated

      12605 E 16th Ave, Uchealth Anschutz Medical, 
      Aurora, CO 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Stephen Cass is an Otolaryngologist in Aurora, Colorado. Dr. Cass is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Otitis, Acoustic Neuroma, Cholesteatoma, Schwannoma, and Myringotomy. Dr. Cass is currently accepting new patients.

      Experienced in RASopathies
      Family Medicine
      Experienced in RASopathies
      Family Medicine
      233 Main Street, 
      San Luis, CO 
      Languages Spoken:
      English

      Joseph Quintana is a primary care provider, practicing in Family Medicine in San Luis, Colorado. Dr. Quintana is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Neurofibromatosis Type 2 (NF2), Acute Mountain Sickness, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

      Experienced in RASopathies
      Experienced in RASopathies

      Johns Hopkins University

      985 Nob Hill Rd, 
      Evergreen, CO 
      Languages Spoken:
      English

      David Yousem is a Radiologist in Evergreen, Colorado. Dr. Yousem is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Hydrocephalus, Normal Pressure Hydrocephalus, Subarachnoid Hemorrhage, Fractured Spine, and Embolectomy.

      Showing 1-20 of 77

      Last Updated: 10/30/2025

      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 in Colorado, US?

      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 in Colorado, US?

      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 in Colorado, US?

      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 in Colorado, US?

      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 in Colorado, US?

      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 in Colorado, US?

      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 in Colorado, US?

      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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