The 20 Best RASopathies Doctors Near Me in Los Angeles,, CA

Find the Top RASopathies Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 911 doctor with experience in RASopathies near Los Angeles,, CA. Of these, 828 are Experienced, 70 are Advanced, 11 are Distinguished and 2 are Elite.

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911 providers found
    Elite in RASopathies
    Medical Genetics | Pediatrics
    Elite in RASopathies
    Medical Genetics | Pediatrics
    Referral may be required
    2825 50th St Rm 2284, Uc Davis Mind Institute, 
    Sacramento, CA 
    Languages Spoken:
    English

    Katherine Rauen is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Sacramento, California. Dr. Rauen is rated as an Elite provider by MediFind in the treatment of RASopathies. She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses RASopathies, Costello Syndrome, Legius Syndrome, and Cardiofaciocutaneous Syndrome.

    Elite in RASopathies
    Medical Genetics | Pediatrics
    Elite in RASopathies
    Medical Genetics | Pediatrics
    Referral may be required

    Lpch Medical Group Div Of Lucile

    725 Welch Rd, 
    Palo Alto, CA 
    Languages Spoken:
    English
    Offers Telehealth

    David Stevenson is a Medical Genetics specialist and a Pediatrics provider practicing medicine in Palo Alto, California. Dr. Stevenson is rated as an Elite provider by MediFind in the treatment of RASopathies. He is also highly rated in 100 other conditions, according to our data. His clinical expertise encompasses Neurofibromatosis Type 1 (NF1), Neurofibromatosis, RASopathies, Costello Syndrome, and Deep Brain Stimulation.

    Experienced in RASopathies
    Dermatology
    Experienced in RASopathies
    Dermatology
    Referral may be required

    City Of Hope Comprehensive Cancer Center-Duarte

    1500 Duarte Rd, 
    Duarte, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Badri Modi is a Dermatologist practicing medicine in Duarte, California. Dr. Modi is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Chronic Graft Versus Host Disease (cGvHD), Graft Versus Host Disease (GvHD), Melanoma, Actinic Keratosis, and Bone Graft. Dr. Modi 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
    Advanced in RASopathies
    Otolaryngology
    Advanced in RASopathies
    Otolaryngology
    Referral may be required

    Keck Medical Center Of USC

    1450 San Pablo St Ste 5100, 
    Los Angeles, CA 
    Languages Spoken:
    English

    Rick Friedman is an Otolaryngologist practicing medicine in Los Angeles, California. Dr. Friedman is rated as an Advanced provider by MediFind in the treatment of RASopathies. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Acoustic Neuroma, Schwannoma, Hearing Loss, and Occupational Hearing Loss.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    Moores Cancer Center At UC San Diego Health

    3855 Health Sciences Dr, 
    San Diego, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Marc Schwartz is a Neurosurgery provider practicing medicine in San Diego, CA. Dr. Schwartz is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Meningioma, Acoustic Neuroma, Schwannoma, Awake Craniotomy, and Gastrostomy. Dr. Schwartz is board certified in American Board Of Neurological Surgery.

    Experienced in RASopathies
    Neonatology | Medical Genetics
    Experienced in RASopathies
    Neonatology | Medical Genetics
    Referral may be required

    Center For Complex Obstetric Medicine

    1825 Fourth St., Third Floor, 
    San Francisco, CA 
    Languages Spoken:
    English
    Accepting New Patients

    Mary Norton is a Neonatologist and a Medical Genetics provider practicing medicine in San Francisco, California. Dr. Norton is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses Fetal Edema, Hydrops Fetalis, Alpha Thalassemia, and Hemolytic Disease of the Newborn. Dr. Norton is board certified in American Board Of Obstetrics And Gynecology, Obstetrics & Gynecology, American Board Of Medical Genetics And Genomics, Clinical Genetics And Genomics, and American Board Of Obstetrics And Gynecology, Maternal-Fetal Medicine. Dr. Norton is currently accepting new patients.

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

    Brain Tumor Center

    400 Parnassus Ave., Eighth Floor, 
    San Francisco, CA 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jennie Taylor is a Neurosurgery specialist and a Neurologist practicing medicine in San Francisco, California. Dr. Taylor is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 18 other conditions, according to our data. Her clinical expertise encompasses Glioma, Astrocytoma, Glioblastoma, and Brain Tumor. Dr. Taylor is board certified in American Board Of Psychiatry/Neurology-Neurology, Neurology. Dr. Taylor is currently accepting new patients.

    Experienced in RASopathies
    Orthopedics
    Experienced in RASopathies
    Orthopedics
    Referral may be required

    Los Angeles Pediatric Orthopaedics

    11710 Wilshire Blvd, 
    Los Angeles, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Robert Cho is an Orthopedics provider practicing medicine in Los Angeles, California. Dr. Cho is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Scoliosis, Spondylocarpotarsal Synostosis Syndrome, Caudal Regression Syndrome, Osteotomy, and Spinal Fusion. Dr. Cho is board certified in American Board Of Orthopaedic Surgery.

    Distinguished in RASopathies
    Radiology | Neuroradiology
    Distinguished in RASopathies
    Radiology | Neuroradiology
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
    Languages Spoken:
    English
    Accepting New Patients

    Daniel Chow is a Radiologist and a Neuroradiologist practicing medicine in Orange, California. Dr. Chow is rated as a Distinguished provider by MediFind in the treatment of RASopathies. He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Neurofibromatosis Type 2 (NF2), RASopathies, Neurofibromatosis, and Stroke. Dr. Chow is currently accepting new patients.

    Distinguished in RASopathies
    Distinguished in RASopathies
    Referral may be required

    UCI Health Chao Family Comprehensive Cancer Center

    101 The City Drive South, Building 23, 
    Orange, CA 
    Languages Spoken:
    English, Japanese
    Offers Telehealth

    Xiao Kong is a Neurologist practicing medicine in Orange, California. Dr. Kong is rated as a Distinguished provider by MediFind in the treatment of RASopathies. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Astrocytoma, Glioblastoma, Glioma, and Brain Tumor. Dr. Kong is board certified in American Board Of Psychiatry And Neurology - Neurology.

    Distinguished in RASopathies
    Radiology | Neuroradiology
    Distinguished in RASopathies
    Radiology | Neuroradiology
    Referral may be required

    Gottschalk Medical Plaza

    1 Medical Plaza Drive, 
    Irvine, CA 
    Languages Spoken:
    English
    Accepting New Patients

    Eleanor Chu is a Radiologist and a Neuroradiologist practicing medicine in Irvine, California. Dr. Chu is rated as a Distinguished provider by MediFind in the treatment of RASopathies. She is also highly rated in 30 other conditions, according to our data. Her clinical expertise encompasses Stroke, Neurofibromatosis Type 2 (NF2), RASopathies, and Neurofibromatosis. Dr. Chu is board certified in American Board Of Radiology - Diagnostic Radiology and American Board Of Radiology - Neuroradiology. Dr. Chu is currently accepting new patients.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    Stanford Hospital And Clinics

    300 Pasteur Dr, 
    Stanford, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Lawrence Shuer is a Neurosurgery provider practicing medicine in Stanford, California. Dr. Shuer is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Meningioma, Choroid Plexus Papilloma, Pallister-Hall Syndrome, Awake Craniotomy, and Thrombectomy.

    Experienced in RASopathies
    Pediatric Neurology
    Experienced in RASopathies
    Pediatric Neurology
    Referral may be required

    Rady Children's Hospital San Diego

    3020 Childrens Way, 
    San Diego, CA 
    Languages Spoken:
    English

    Praveen Raju is a Pediatric Neurologist practicing medicine in San Diego, California. Dr. Raju 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 Neurofibromatosis, Neurofibromatosis Type 1 (NF1), Legius Syndrome, and RASopathies.

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

    UC San Diego

    200 W Arbor Dr, 
    San Diego, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Philip Weissbrod is a General Surgeon practicing medicine in San Diego, California. Dr. Weissbrod is rated as an Experienced 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 Vocal Cord Dysfunction, Subglottic Stenosis, Cellulitis, Laryngectomy, and Endoscopy.

    Experienced in RASopathies
    Ophthalmology
    Experienced in RASopathies
    Ophthalmology
    Referral may be required

    Comprehensive Ophthalmology And Optometry

    2452 Watson Ct, 
    Palo Alto, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Andrea Kossler is an Ophthalmologist practicing medicine in Palo Alto, California. Dr. Kossler is rated as an Experienced provider by MediFind in the treatment of RASopathies. She is also highly rated in 24 other conditions, according to our data. Her clinical expertise encompasses Graves Disease, Ptosis, Eyelid Drooping, Vitrectomy, and Cataract Removal.

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

    Duarte Cancer Center

    1500 Duarte Rd, 
    Duarte, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Mike Chen is a Neurosurgery provider practicing medicine in Duarte, California. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 31 other conditions, according to our data. His clinical expertise encompasses Chordoma, Bone Tumor, Posterior Fossa Tumor, Awake Craniotomy, and Laminectomy.

    Experienced in RASopathies
    Experienced in RASopathies
    Referral may be required

    Office

    965 High St, 
    Palo Alto, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Gary Steinberg is a Neurosurgery provider practicing medicine in Palo Alto, California. Dr. Steinberg is rated as an Experienced provider by MediFind in the treatment of RASopathies. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Moyamoya Disease, Stroke, Arteriovenous Malformation, Extracranial-Intracranial Bypass Surgery, and Cerebral Artery Bypass Surgery.

    Distinguished in RASopathies
    Child and Adolescent Psychiatry
    Distinguished in RASopathies
    Child and Adolescent Psychiatry
    Referral may be required

    Stanford Psychiatry Residency

    401 Quarry Rd, 
    Palo Alto, CA 
    Languages Spoken:
    English

    Tamar Green is a Child and Adolescent Psychiatrist practicing medicine in Palo Alto, California. Dr. Green is rated as a Distinguished provider by MediFind in the treatment of RASopathies. She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Turner Syndrome, RASopathies, Noonan Syndrome, and Intersex.

    Distinguished in RASopathies
    Distinguished in RASopathies
    Referral may be required

    Office

    300 Medical Plz, 
    Los Angeles, CA 
    Languages Spoken:
    English
    Offers Telehealth

    Phioanh Nghiemphu is a Neurologist practicing medicine in Los Angeles, California. Dr. Nghiemphu is rated as a Distinguished provider by MediFind in the treatment of RASopathies. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Glioma, Glioblastoma, Astrocytoma, and Brain Tumor.

    Distinguished in RASopathies
    Medical Genetics | Pediatrics
    Distinguished in RASopathies
    Medical Genetics | Pediatrics
    Referral may be required
    513 Parnassus Ave, Room S747, Box 0442, 
    San Francisco, CA 
    Languages Spoken:
    English

    Ophir Klein is a Medical Genetics specialist and a Pediatrics provider practicing medicine in San Francisco, California. Dr. Klein is rated as a Distinguished provider by MediFind in the treatment of RASopathies. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Costello Syndrome, RASopathies, Aplasia Cutis Congenita, and Ectodermal Dysplasias.

    Showing 1-20 of 911

    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 Los Angeles,, CA?

    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 Los Angeles,, CA?

    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 Los Angeles,, CA?

    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 Los Angeles,, CA?

    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 Los Angeles,, CA?

    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 Los Angeles,, CA?

    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 Los Angeles,, CA?

    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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