The 20 Best Mast Cell Activation Syndrome (MCAS) Doctors Near Me in Bethesda, MD

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

Last Updated: 09/26/2026

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MediFind found 75 doctor with experience in Mast Cell Activation Syndrome (MCAS) near Bethesda, MD. Of these, 57 are Experienced, 14 are Advanced, 2 are Distinguished and 2 are Elite.

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75 providers found
    Elite in Mast Cell Activation Syndrome (MCAS)
    Elite in Mast Cell Activation Syndrome (MCAS)
    Referral may be required

    Dept Of Transfusion Medicine/Nih Clinical Center

    10 Center Dr, 
    Bethesda, MD 
    Languages Spoken:
    English
    Accepting New Patients

    Dean Metcalfe is a Rheumatologist practicing medicine in Bethesda, Maryland. Dr. Metcalfe is rated as an Elite provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Mast Cell Activation Syndrome (MCAS) and Hereditary Alpha-Tryptasemia. Dr. Metcalfe is currently accepting new patients.

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

    Molecular Medicine And Neuroscience

    10 Center Dr Bldg 10, 
    Bethesda, MD 
    Languages Spoken:
    English
    Accepting New Patients

    Melody Carter is a Pediatrics provider practicing medicine in Bethesda, Maryland. Dr. Carter is rated as an Elite provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Mast Cell Activation Syndrome (MCAS), Alpha-gal Syndrome (AGS), and Diarrhea. Dr. Carter is currently accepting new patients.

    Distinguished in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Distinguished in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Referral may be required

    Office

    10 Center Dr Rm 11S231, 
    Bethesda, MD 
    Languages Spoken:
    English

    Hirsh Komarow is an Allergy and Immunologist practicing medicine in Bethesda, Maryland. Dr. Komarow is rated as a Distinguished 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 Mast Cell Activation Syndrome (MCAS), Cold Urticaria, Systemic Mastocytosis, and Hives.

    Learn about our expert tiers
    Distinguished in Mast Cell Activation Syndrome (MCAS)
    Hematology
    Distinguished in Mast Cell Activation Syndrome (MCAS)
    Hematology
    Referral may be required

    Office

    10 Center Dr, 
    Bethesda, MD 
    Languages Spoken:
    English

    Irina Maric is a Hematologist practicing medicine in Bethesda, Maryland. Dr. Maric is rated as a Distinguished 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 Systemic Mastocytosis, Mast Cell Activation Syndrome (MCAS), Hypereosinophilic Syndrome, Hairy Cell Leukemia (HCL), and Tissue Biopsy.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine
    11325 Seven Locks Rd Ste N290, 
    Potomac, MD 
    Languages Spoken:
    English
    Accepting New Patients

    Andrew Wong is a primary care provider, practicing in Internal Medicine in Potomac, Maryland. Dr. Wong is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His clinical expertise encompasses Hashimoto Thyroiditis, Gas Bloat Syndrome, Irritable Bowel Syndrome (IBS), and Heavy Metal Poisoning. Dr. Wong is currently accepting new patients.

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

    Arthritis And Rheumatism Associates, PC

    14995 Shady Grove Rd, Suite 250, 
    Rockville, MD 
    Languages Spoken:
    English
    Offers Telehealth

    Evan Siegel is a Rheumatologist practicing medicine in Rockville, Maryland. Dr. Siegel is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 26 other conditions, according to our data. His clinical expertise encompasses Psoriatic Arthritis, Psoriasis, Postmenopausal Osteoporosis, and Osteoporosis.

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

    Arthritis And Rheumatism Associates PC

    5454 Wisconsin Ave, Suite 600, 
    Chevy Chase, MD 
    Languages Spoken:
    English, Amharic, Spanish
    Offers Telehealth

    Adey Berhanu is a Rheumatologist practicing medicine in Chevy Chase, Maryland. Dr. Berhanu is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 20 other conditions, according to our data. Her clinical expertise encompasses Postmenopausal Osteoporosis, Osteoporosis, Tenosynovitis, and Gout. Dr. Berhanu is board certified in Rheumatology and Internal Medicine.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Referral may be required

    Calvert Internal Medicine Group, PA

    985 N Prince Frederick Blvd, Suite 201, 
    Prince Frederick, MD 
    Languages Spoken:
    English
    Offers Telehealth

    Brett Coons is an Allergy and Immunologist practicing medicine in Prince Frederick, Maryland. Dr. Coons 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 Alpha-gal Syndrome (AGS), Mast Cell Activation Syndrome (MCAS), Ehlers-Danlos Syndrome (EDS), and Hereditary Alpha-Tryptasemia. Dr. Coons is board certified in Abai.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Referral required

    Johns Hopkins Bayview Medical Center

    Baltimore, MD 
    Experience:
    18+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Eric Oliver is an Allergy and Immunologist practicing medicine in Baltimore, Maryland. He has been practicing medicine for over 18 years. Dr. Oliver is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Chronic Spontaneous Urticaria (CSU), Hives, Mast Cell Activation Syndrome (MCAS), and Asthma. Dr. Oliver is board certified in American Board Of Allergy And Immunology. Dr. Oliver is currently accepting new patients.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Adolescent Medicine
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Adolescent Medicine
    Referral may be required

    Rubenstein Child Health Building

    Baltimore, MD 
    Languages Spoken:
    English

    Peter Rowe is an Adolescent Medicine provider practicing medicine in Baltimore, Maryland. Dr. Rowe is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Chronic Fatigue Syndrome, Fibromyalgia, Pelvic Congestion Syndrome, and Mast Cell Activation Syndrome (MCAS). Dr. Rowe is board certified in American Board Of Pediatrics.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Allergy and Immunology
    Referral may be required

    Allergy & Asthma Center

    6000 Executive Blvd Ste 615, 
    Rockville, MD 
    Languages Spoken:
    English
    Accepting New Patients

    Paul Keiser is an Allergy and Immunologist practicing medicine in Rockville, Maryland. Dr. Keiser is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Allergic Rhinitis, Sinusitis, Grass Allergy, and Hives. Dr. Keiser is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine

    Office

    110 Hospital Rd Ste 310, 
    Prince Frederick, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Joseph Barth-Iii is a primary care provider, practicing in Internal Medicine in Prince Frederick, Maryland. Dr. Barth-Iii is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Infant Hyperglycemia, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension. Dr. Barth-Iii is currently accepting new patients.

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

    Crossroads Medical Associates

    4801 Dorsey Hall Dr Ste 201, 
    Ellicott City, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Warren Ross is a Geriatrics provider practicing medicine in Ellicott City, Maryland. Dr. Ross is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Cerebellar Degeneration, Anemia, Hypertension, and Familial Hypertension. Dr. Ross is currently accepting new patients.

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

    Crossroads Medical Associates

    4801 Dorsey Hall Drive, Suite 201, Suite 201, 
    Ellicott City, MD 
    Languages Spoken:
    English, Gujarati , Hindi, Marathi
    Accepting New Patients
    Offers Telehealth

    Rupal Desai is a Neurologist practicing medicine in Ellicott City, Maryland. Dr. Desai is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 11 other conditions, according to our data. Her clinical expertise encompasses Inborn Amino Acid Metabolism Disorder, Spasticity, Vertigo, and Vitamin D Deficiency. Dr. Desai is board certified in American Board Of Internal Medicine. Dr. Desai is currently accepting new patients.

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

    Mobile Medical Care Inc.

    9309 Old Georgetown Rd, 
    Bethesda, MD 
    Languages Spoken:
    English
    Accepting New Patients

    Paul Demarco is a Rheumatologist practicing medicine in Bethesda, Maryland. Dr. Demarco is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Postmenopausal Osteoporosis, Osteoporosis, Rheumatoid Arthritis (RA), and Psoriatic Arthritis. Dr. Demarco is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine

    Doctors First Professional Corporation

    8100 Sandpiper Cir Ste 308, 
    Nottingham, MD 
    Languages Spoken:
    English, Hindi, Punjabi, Spanish, Urdu
    Accepting New Patients
    Offers Telehealth

    Rakesh Malik is a primary care provider, practicing in Internal Medicine in Nottingham, Maryland. Dr. Malik is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 57 other conditions, according to our data. His clinical expertise encompasses High Cholesterol, Glucocorticoid-Remediable Aldosteronism, Hypertension, and Familial Hypertension. Dr. Malik is currently accepting new patients.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Integrative Medicine
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Integrative Medicine
    Referral may be required

    Community Support LLC

    11140 Rockville Pike, 
    Rockville, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Maria Nunez is an Integrative Medicine provider practicing medicine in Rockville, Maryland. Dr. Nunez is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Mast Cell Activation Syndrome (MCAS), Mononucleosis, Gas Bloat Syndrome, and Orthostatic Hypotension. Dr. Nunez is currently accepting new patients.

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine

    Office

    4954 N Palmer Rd Bldg 19, 
    Bethesda, MD 
    Languages Spoken:
    English

    Nathan Boggs is a primary care provider, practicing in Internal Medicine in Bethesda, Maryland. Dr. Boggs is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Mast Cell Activation Syndrome (MCAS), Systemic Mastocytosis, Hypereosinophilic Syndrome, Bone Marrow Aspiration, and Splenectomy.

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

    Accessible Medical Care

    1010 Wayne Ave Ste 410, 
    Silver Spring, MD 
    Languages Spoken:
    English

    Sarah Cohen is a Pediatrics provider practicing medicine in Silver Spring, Maryland. Dr. Cohen is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Ehlers-Danlos Syndrome (EDS), Mast Cell Activation Syndrome (MCAS), Musculocontractural Ehlers-Danlos Syndrome (mcEDS), and Undifferentiated Connective Tissue Disease (UCTD).

    Advanced in Mast Cell Activation Syndrome (MCAS)
    Infectious Disease
    Advanced in Mast Cell Activation Syndrome (MCAS)
    Infectious Disease
    Referral may be required

    Office

    9000 Rockville Pike, 
    Bethesda, MD 
    Languages Spoken:
    English

    Amy Klion is an Infectious Disease provider practicing medicine in Bethesda, Maryland. Dr. Klion is rated as an Advanced 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 Loiasis, Spirurida Infections, Secernentea Infections, Helminthiasis, and Tissue Biopsy.

    Showing 1-20 of 75

    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 Bethesda, MD?

    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 Bethesda, MD?

    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 Bethesda, MD?

    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 Bethesda, MD?

    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 Bethesda, MD?

    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 Bethesda, MD?

    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 Bethesda, MD?

    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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