Filters

Specialty
Additional Specialty
Distance
    Gender
    Insurance
    Availability
    Language
    Years of Experience
    Level of Expertise

    Last Updated: 01/09/2026

    Save doctors for later
    Sign Up
    Not sure about your diagnosis?
    Check Your Symptoms
    Already have a doctor?
    Find A Second Opinion

    MediFind found 326 doctor with experience in RASopathies near Pennsylvania, US. Of these, 300 are Experienced, 24 are Advanced and 2 are Distinguished.

    Location
    LocationClose
    326 providers found
      Experienced in RASopathies
      Experienced in RASopathies

      Jefferson University Physicians

      834 Walnut St, Suite 110, 
      Philadelphia, PA 
      Languages Spoken:
      English
      Offers Telehealth

      Christopher Farrell is a Neurosurgery provider in Philadelphia, Pennsylvania. Dr. Farrell is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Hydrocephalus, Meningioma, Cerebellum Agenesis Hydrocephaly, Awake Craniotomy, and Septoplasty.

      Distinguished in RASopathies
      Pediatrics | Medical Genetics
      Distinguished in RASopathies
      Pediatrics | Medical Genetics
      34th & Civic Center Boulevard, 9nw55, Chop-pediatrics/medical Genetics Residency Program, 
      Philadelphia, PA 
      Languages Spoken:
      English

      Rebecca Ahrens-Nicklas is a Pediatrics specialist and a Medical Genetics provider in Philadelphia, Pennsylvania. Dr. Ahrens-Nicklas is rated as a Distinguished provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Multiple Sulfatase Deficiency, Cardiomyopathic Lentiginosis, Chondrodysplasia Punctata with Steroid Sulfatase Deficiency, and Noonan Syndrome.

      Distinguished in RASopathies
      Endocrinology
      Distinguished in RASopathies
      Endocrinology
      2300 Computer Rd, Suite H-39, 
      Willow Grove, PA 
      Languages Spoken:
      English

      Nicky Kelepouris is an Endocrinologist in Willow Grove, Pennsylvania. Dr. Kelepouris is rated as a Distinguished provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Growth Hormone Deficiency (GHD), Pediatric Growth Hormone Deficiency, Noonan Syndrome, RASopathies, and Hormone Replacement Therapy (HRT).

      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
      Otolaryngology
      Advanced in RASopathies
      Otolaryngology

      Penn Otorhinolaryngology - Head And Neck Surgery Perelman

      3400 Civic Center Boulevard, South Pavilion, 3rd Floor, 
      Philadelphia, PA 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Douglas Bigelow is an Otolaryngologist in Philadelphia, Pennsylvania. Dr. Bigelow is rated as an Advanced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Schwannoma, Acoustic Neuroma, Glomus Jugulare Tumor, Gamma Knife Radiosurgery, and Myringotomy. Dr. Bigelow is currently accepting new patients.

      Advanced in RASopathies
      Family Medicine
      Advanced in RASopathies
      Family Medicine

      Reinhardt Family Practice, PC

      601 Hawthorne Drive, Gateway Building, 
      Hollidaysburg, PA 
      Languages Spoken:
      English, Russian
      Offers Telehealth

      John Reinhardt is a primary care provider, practicing in Family Medicine in Hollidaysburg, Pennsylvania. Dr. Reinhardt is rated as an Advanced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Dementia, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Ureteroscopy, and Gastrostomy.

      Yelin Yang
      Experienced in RASopathies
      Internal Medicine
      Experienced in RASopathies
      Internal Medicine

      Primary Care Concord

      161 Wilmington W Chester Pike, Suite 1200, 
      Chadds Ford, PA 
      Languages Spoken:
      English

      Yelin Yang is a primary care provider, practicing in Internal Medicine in Chadds Ford, Pennsylvania. Dr. Yang is rated as an Experienced provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Asthma in Children, Asthma, Hypertension, and Familial Hypertension.

      Paul A. Gardner
      Advanced in RASopathies
      Neurosurgery
      Advanced in RASopathies
      Neurosurgery

      UPMC Neurological Institute - Presbyterian

      200 Lothrop Street, A402 UPMC Presbyterian, 
      Pittsburgh, PA 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Dr. Gardner is the Peter J. Jannetta Endowed Chair of neurological surgery at the University of Pittsburgh School of Medicine and director of the Center for Skull Base Surgery. He specializes in endoscopic endonasal skull base surgery, pituitary tumors, Neuroendoport brain surgery, and vascular neurosurgery. Dr. Gardner is rated as an Advanced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Chordoma, Pituitary Tumor, Meningioma, Nerve Decompression, and Endoscopic Transnasal Transsphenoidal Surgery.

      Ken K. Nischal
      Advanced in RASopathies
      Advanced in RASopathies

      UPMC Vision Institute

      4401 Penn Avenue, Suite 3200, 
      Pittsburgh, PA 
      Languages Spoken:
      English, French, Hindi, Punjabi, Urdu
      Accepting New Patients
      Offers Telehealth

      Ken Nischal is a Pediatrics provider in Pittsburgh, Pennsylvania. Dr. Nischal is rated as an Advanced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Mitochondrial Trifunctional Protein Deficiency, Long-Chain 3-Hydroxyacyl-CoA Dehydrogenase Deficiency, Conjunctivitis with Pseudomembrane, Cataract Removal, and Vitrectomy. Dr. Nischal is currently accepting new patients.

      Experienced in RASopathies
      Experienced in RASopathies

      Penn Otorhinolaryngology - Head And Neck Surgery Radnor

      145 King Of Prussia Road, Ground Floor, Suite G-102, 
      Radnor, PA 
      Languages Spoken:
      English
      Accepting New Patients

      Michael Ruckenstein is an Otolaryngologist in Radnor, Pennsylvania. Dr. Ruckenstein is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Schwannoma, Acoustic Neuroma, Meniere Disease, Gamma Knife Radiosurgery, and Myringotomy. Dr. Ruckenstein is currently accepting new patients.

      Experienced in RASopathies
      Neurosurgery
      Experienced in RASopathies
      Neurosurgery

      Penn Gamma Knife Center

      801 Spruce Street, Spruce Building, 1st Floor, 
      Philadelphia, PA 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      John Lee is a Neurosurgery provider in Philadelphia, Pennsylvania. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Meningioma, Acoustic Neuroma, Trigeminal Neuralgia, Awake Craniotomy, and Microvascular Decompression. Dr. Lee is currently accepting new patients.

      Experienced in RASopathies
      Medical Genetics
      Experienced in RASopathies
      Medical Genetics

      Penn Translational Medicine And Human Genetics

      3400 Civic Center Boulevard, South Pavilion, 1st Floor, 
      Philadelphia, PA 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Staci Kallish is a Medical Genetics provider in Philadelphia, Pennsylvania. Dr. Kallish is rated as an Experienced provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Neurofibromatosis Type 1 (NF1), Gaucher Disease Type 1, Fabry Disease, and Neurofibromatosis. Dr. Kallish is currently accepting new patients.

      Experienced in RASopathies
      Pediatrics
      Experienced in RASopathies
      Pediatrics

      True North Pediatrics

      1210 Bethlehem Pike, 
      North Wales, PA 
      Languages Spoken:
      English

      John Kleback is a Pediatrics provider in North Wales, Pennsylvania. Dr. Kleback is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Vascular Birthmark, Stork Bite, Obesity in Children, and Autism Spectrum Disorder.

      Experienced in RASopathies
      Family Medicine
      Experienced in RASopathies
      Family Medicine

      Family Practice

      410 Pellis Road, Suite 1A, 
      Greensburg, PA 
      Languages Spoken:
      English

      Mark Gottron is a primary care provider, practicing in Family Medicine in Greensburg, Pennsylvania. Dr. Gottron is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Acute Kidney Failure, Glucocorticoid-Remediable Aldosteronism, Familial Hypertension, Hypertension, and Endoscopy.

      Experienced in RASopathies
      Plastic Surgery
      Experienced in RASopathies
      Plastic Surgery

      Penn Plastic Surgery Bryn Mawr

      23 Morris Avenue, Suite 219, 
      Bryn Mawr, PA 
      Languages Spoken:
      English
      Accepting New Patients

      Joshua Fosnot is a Plastic Surgeon in Bryn Mawr, Pennsylvania. Dr. Fosnot is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Melanoma, Breast Enlargement In Males, HER2 Negative Breast Cancer, BRCA Positive Breast Cancer, and Lymphadenectomy. Dr. Fosnot is currently accepting new patients.

      Experienced in RASopathies
      Internal Medicine
      Experienced in RASopathies
      Internal Medicine

      Penn Internal Medicine Radnor

      145 King Of Prussia Road, Floor 2, Suite 205 South, 
      Radnor, PA 
      Languages Spoken:
      English
      Offers Telehealth

      Steven Feinstein is a primary care provider, practicing in Internal Medicine in Radnor, Pennsylvania. Dr. Feinstein is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Peripheral Neuropathy, Diabetic Neuropathy, Hyperthyroidism, and Childhood Iron Deficiency Anemia.

      Experienced in RASopathies
      Experienced in RASopathies

      Family Medicine At PCOM

      4190 City Avenue, Suite 100, 
      Philadelphia, PA 
      Experience:
      39+ years
      Languages Spoken:
      English

      George Spyropoulos is a primary care provider, practicing in Family Medicine in Philadelphia, Pennsylvania. Dr. Spyropoulos has been practicing medicine for over 39 years and is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Obesity.

      Experienced in RASopathies
      Family Medicine
      Experienced in RASopathies
      Family Medicine

      Cove Family Practice, Inc

      111 Nason Drive, Suite 101, 
      Roaring Spring, PA 
      Languages Spoken:
      English
      Offers Telehealth

      Darron Locke is a primary care provider, practicing in Family Medicine in Roaring Spring, Pennsylvania. Dr. Locke is rated as an Experienced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Familial Hypertension, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Alzheimer's Disease.

      Advanced in RASopathies
      Neurosurgery
      Advanced in RASopathies
      Neurosurgery

      The Milton S Hershey Medical Center Physicians Group

      500 University Dr, 
      Hershey, PA 
      Languages Spoken:
      English

      Dawit Aregawi is a Neurosurgery provider in Hershey, Pennsylvania. Dr. Aregawi is rated as an Advanced provider by MediFind in the treatment of RASopathies. His top areas of expertise are Glioblastoma, Astrocytoma, Glioma, and Brain Tumor.

      Advanced in RASopathies
      Hematology Oncology | Oncology
      Advanced in RASopathies
      Hematology Oncology | Oncology

      Jefferson University Physicians

      111 S 11th St, 
      Philadelphia, PA 
      Languages Spoken:
      English
      Offers Telehealth

      Atrayee Basu-Mallick is a Hematologist Oncology specialist and an Oncologist in Philadelphia, Pennsylvania. Dr. Basu-Mallick is rated as an Advanced provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Bone Tumor, Colorectal Cancer, Mesenchymoma, Undifferentiated Pleomorphic Sarcoma, and Pancreaticoduodenectomy.

      Advanced in RASopathies
      Medical Genetics | Pediatrics
      Advanced in RASopathies
      Medical Genetics | Pediatrics
      3401 Civic Center Blvd, Children's Hospital Of Philadelphia - Genetics, 
      Philadelphia, PA 
      Languages Spoken:
      English

      Elaine Zackai is a Medical Genetics specialist and a Pediatrics provider in Philadelphia, Pennsylvania. Dr. Zackai is rated as an Advanced provider by MediFind in the treatment of RASopathies. Her top areas of expertise are Micrognathia, DiGeorge Syndrome, Hardikar Syndrome, Myringotomy, and Gastrostomy.

      Showing 1-20 of 326

      Last Updated: 01/09/2026

      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 in Pennsylvania, 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 Pennsylvania, 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 Pennsylvania, 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 Pennsylvania, 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 Pennsylvania, 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 Pennsylvania, 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 Pennsylvania, 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 

      Read more about our Content Policy