The 20 Best Mast Cell Activation Syndrome (MCAS) Doctors Near Me in orange, CA

Find the Top Mast Cell Activation Syndrome (MCAS) Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 38 doctor with experience in Mast Cell Activation Syndrome (MCAS) near orange, CA. Of these, 36 are Experienced and 2 are Advanced.

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38 providers found
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Rheumatology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Rheumatology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Andrew Shulman is a Pediatric Rheumatologist practicing medicine in Orange, California. Dr. Shulman is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Juvenile Dermatomyositis, Juvenile Idiopathic Arthritis (JIA), Localized Scleroderma, and Dermatomyositis. Dr. Shulman is currently accepting new patients.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Referral required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Diane Nugent is a Pediatric Hematologist Oncology provider practicing medicine in Orange, California. Dr. Nugent is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 17 other conditions, according to our data. Her clinical expertise encompasses Blood Clots, Hemophilia A, Immune Thrombocytopenic Purpura (ITP), and Mast Cell Activation Syndrome (MCAS). Dr. Nugent is currently accepting new patients.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Gastroenterology
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Gastroenterology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Ashish Chogle is a Pediatric Gastroenterologist practicing medicine in Orange, California. Dr. Chogle is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Hirschsprung Disease, Total Intestinal Aganglionosis, and PIK3CA-Related Overgrowth Spectrum. Dr. Chogle is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Neurology | Pediatrics | Public Health and Preventive Medicine
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Neurology | Pediatrics | Public Health and Preventive Medicine
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Sharief Taraman is a Pediatrics specialist and a Public Health and Preventive Medicine provider practicing medicine in Orange, California. Dr. Taraman is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Autism Spectrum Disorder, Concussion, Mast Cell Activation Syndrome (MCAS), and Rasmussen Encephalitis. Dr. Taraman is board certified in Neurology With Special Qualifications In Child Neurology and Clinical Informatics. Dr. Taraman is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Referral may be required
    1140 West La Veta Avenue, Suite 850, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    William Harris is an Allergy and Immunologist practicing medicine in Orange, California. Dr. Harris is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Hives, Sinusitis, Grass Allergy, and Allergic Rhinitis. Dr. Harris is board certified in American Board Of Allergy & Immunology. Dr. Harris is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease | Pediatrics
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease | Pediatrics
    Referral may be required

    UC Irvine Medical Center

    101 The City Drive South, 
    Orange, CA 
     (2.0 miles away)
    Languages Spoken:
    English, Farsi, Spanish

    Behnoosh Afghani is a Pediatric Infectious Disease specialist and a Pediatrics provider practicing medicine in Orange, California. Dr. Afghani is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Kawasaki Disease, Cerebral Hypoxia, PEPCK 1 Deficiency, and Pyruvate Carboxylase Deficiency. Dr. Afghani is board certified in American Board Of Pediatrics - Pediatrics and American Board Of Pediatrics - Pediatric Infectious Diseases.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Eric Won is a Pediatric Hematologist Oncology provider practicing medicine in Orange, California. Dr. Won is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Congenital Athymia, Hereditary Spherocytosis, Koolen De Vries Syndrome, and Aase Syndrome. Dr. Won is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Nina Hwang is a Pediatrics provider practicing medicine in Orange, California. Dr. Hwang is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her clinical expertise encompasses Mast Cell Activation Syndrome (MCAS). Dr. Hwang is board certified in American Board Of Pediatrics. Dr. Hwang is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Amit Soni is a Pediatric Hematologist Oncology provider practicing medicine in Orange, California. Dr. Soni is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Hemophilia A, Ataxia-Pancytopenia Syndrome, Shwachman-Diamond Syndrome, and Hemophilic Arthropathy. Dr. Soni is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Gastroenterology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Gastroenterology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Gregory Wong is a Pediatric Gastroenterologist practicing medicine in Orange, California. Dr. Wong is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Total Intestinal Aganglionosis, Hirschsprung Disease, Wolf-Hirschhorn Syndrome, and Neurogenic Bowel. Dr. Wong is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Vanessa Salinas-Luna is a Pediatric Hematologist Oncology provider practicing medicine in Orange, California. Dr. Salinas-Luna is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her clinical expertise encompasses Beta Thalassemia, Hemophilia A, Hemophilic Arthropathy, and Ataxia-Pancytopenia Syndrome. Dr. Salinas-Luna is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Delma Nieves is a Pediatric Infectious Disease provider practicing medicine in Orange, California. Dr. Nieves is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Kawasaki Disease, Congenital Syphilis, Bacterial Meningitis, and Pneumococcal Meningitis. Dr. Nieves is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Hematology Oncology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Geetha Puthenveetil is a Pediatric Hematologist Oncology provider practicing medicine in Orange, California. Dr. Puthenveetil is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Alpha Thalassemia, Thalassemia, Hemolytic Anemia, and Beta Thalassemia. Dr. Puthenveetil is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Gastroenterology
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Gastroenterology
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Bassam Younes is a Pediatric Gastroenterologist practicing medicine in Orange, California. Dr. Younes is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Celiac Disease, Atresia of Small Intestine, Encopresis, and Koolen De Vries Syndrome. Dr. Younes is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Negar Ashouri is a Pediatric Infectious Disease provider practicing medicine in Orange, California. Dr. Ashouri is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Kawasaki Disease, Congenital Syphilis, Pneumococcal Meningitis, and Encephalitis Lethargica. Dr. Ashouri is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Pediatric Infectious Disease
    Referral may be required
    1201 West La Veta Avenue, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Antonio Arrieta is a Pediatric Infectious Disease provider practicing medicine in Orange, California. Dr. Arrieta is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Congenital Syphilis, Kawasaki Disease, Pneumococcal Meningitis, and Febrile Neutropenia. Dr. Arrieta is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Referral may be required

    Office

    1201 W La Veta Ave, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    Jennifer Lusk is a Pediatrics provider practicing medicine in Orange, California. Dr. Lusk is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 9 other conditions, according to our data. Her clinical expertise encompasses Cerebral Hypoxia, Early Infantile Epileptic Encephalopathy, Wildervanck Syndrome, and CHARGE Syndrome.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Referral may be required

    CHOC Children's Hospital

    1201 W La Veta Ave, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    Britanny Winckler is a Pediatrics provider practicing medicine in Orange, California. Dr. Winckler is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Malnutrition, Cerebral Hypoxia, Hyperlysinemia, and Glutaric Acidemia Type 2.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Referral may be required

    CHOC Children's Hospital

    1201 W La Veta Ave, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    Minkkwan Wungwattana is a Pediatrics provider practicing medicine in Orange, California. Dr. Wungwattana is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Infant Botulism, Cerebral Hypoxia, Asthma in Children, and Kawasaki Disease.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Referral may be required

    Choc Hematology

    1201 W La Veta Ave, 
    Orange, CA 
     (0.8 miles away)
    Languages Spoken:
    English

    David Buchbinder is a Pediatrics provider practicing medicine in Orange, California. Dr. Buchbinder is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Infantile Neutropenia, Venous Thromboembolism (VTE), Anemia, Immune Thrombocytopenic Purpura (ITP), and Bone Graft. Dr. Buchbinder is board certified in American Board Pediatrics.

    Showing 1-20 of 38

    Last Updated: 09/26/2026

    What is the definition of Mast Cell Activation Syndrome (MCAS)?

    Mast cell activation syndrome (MCAS) causes a person to have repeated severe allergy symptoms affecting several body systems. In MCAS, mast cells mistakenly release too many chemical agents, resulting in symptoms in the skin, gastrointestinal tract, heart, respiratory, and neurologic systems. Mast cells are present throughout most of our bodies and secrete different chemicals during allergic reactions. Symptoms include episodes of abdominal pain, cramping, diarrhea, flushing, itching, wheezing, coughing, lightheadedness and rapid pulse and low blood pressure. Symptoms can start at any age, but usually begin in adulthood. The cause of MCAS is unknown. Diagnosis is based on the symptoms, clinical exam, and specific laboratory testing. Other conditions may need to be excluded before MCAS can be diagnosed.

    When should I see a Mast Cell Activation Syndrome (MCAS) doctor near orange, 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 Mast Cell Activation Syndrome (MCAS) doctor near orange, 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 Mast Cell Activation Syndrome (MCAS) doctors near orange, 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 Mast Cell Activation Syndrome (MCAS) doctors near orange, 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 Mast Cell Activation Syndrome (MCAS) doctor near orange, 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 Mast Cell Activation Syndrome (MCAS) doctor search results page. 

    Why is it important to get a second opinion from a different Mast Cell Activation Syndrome (MCAS) 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 Mast Cell Activation Syndrome (MCAS) doctor near orange, 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 Mast Cell Activation Syndrome (MCAS) 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 Mast Cell Activation Syndrome (MCAS) 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 Mast Cell Activation Syndrome (MCAS) doctors near orange, CA?

    Look for the filter feature on the left side of the Mast Cell Activation Syndrome (MCAS) 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 Mast Cell Activation Syndrome (MCAS) doctor that offers video calls?

    Look for the filter feature on the left-side of the Mast Cell Activation Syndrome (MCAS) 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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