The 20 Best Mast Cell Activation Syndrome (MCAS) Doctors Near Me in rochester, MN

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

Last Updated: 09/26/2026

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MediFind found 12 doctor with experience in Mast Cell Activation Syndrome (MCAS) near rochester, MN. Of these, 9 are Experienced, 1 are Advanced, 1 are Distinguished and 1 are Elite.

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

    MN - Cancer Hematology

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-229-0068
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Ayalew Tefferi is a Hematologist practicing medicine in Rochester, Minnesota. Dr. Tefferi is rated as an Elite provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 23 other conditions, according to our data. His clinical expertise encompasses Myelofibrosis, Essential Thrombocythemia, Myeloproliferative Neoplasms (MPN), Splenectomy, and Bone Marrow Transplant. Dr. Tefferi is currently accepting new patients.

    Distinguished in Mast Cell Activation Syndrome (MCAS)

    Dr. Catherine R. Weiler
    Allergy and Immunology
    Distinguished in Mast Cell Activation Syndrome (MCAS)

    Dr. Catherine R. Weiler
    Allergy and Immunology
    Referral may be required

    Mayo Clinic-Rochester

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-284-3783
    Languages Spoken:
    English
    See accepted insurances

    Catherine Weiler is an Allergy and Immunologist practicing medicine in Rochester, Minnesota. Dr. Weiler is rated as a Distinguished provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Mast Cell Activation Syndrome (MCAS), Hereditary Alpha-Tryptasemia, Hypereosinophilic Syndrome, and Systemic Mastocytosis.

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

    MN - Cancer Hematology

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-923-2592
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Naseema Gangat is a Hematologist practicing medicine in Rochester, Minnesota. Dr. Gangat is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 39 other conditions, according to our data. Her clinical expertise encompasses Essential Thrombocythemia, Myelofibrosis, Myeloproliferative Neoplasms (MPN), Bone Marrow Aspiration, and Splenectomy. Dr. Gangat is currently accepting new patients.

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

    Mayo Clinic

    200 1st St Sw, 
    Rochester, MN 
     (0.4 miles away)
    507-284-2511
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients

    Michael Olson is a Radiologist practicing medicine in Rochester, Minnesota. Dr. Olson 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 Ascites, Pleurisy, Colonic Malakoplakia, and Pleural Effusion. Dr. Olson is board certified in American Board Of Radiology,2019 and Diagnostic Radiology. Dr. Olson is currently accepting new patients.

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

    MN - Cancer Hematology

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-923-2592
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Aref Al-Kali is a Hematologist practicing medicine in Rochester, Minnesota. Dr. Al-Kali is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Myelodysplastic Syndrome (MDS), Chronic Myelomonocytic Leukemia (CMML), Leukemia, Bone Marrow Aspiration, and Bone Marrow Transplant. Dr. Al-Kali is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)

    Dr. William J. Hogan
    Hematology | Oncology | Hematology Oncology
    Experienced in Mast Cell Activation Syndrome (MCAS)

    Dr. William J. Hogan
    Hematology | Oncology | Hematology Oncology
    Referral may be required

    Mayo Clinic

    200 1st St Sw, 
    Rochester, MN 
     (0.4 miles away)
    507-284-2511
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    William Hogan is a Hematologist and an Oncologist practicing medicine in Rochester, Minnesota. Dr. Hogan is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 21 other conditions, according to our data. His clinical expertise encompasses Acute Myeloid Leukemia (AML), Chronic Myelomonocytic Leukemia (CMML), Graft Versus Host Disease (GvHD), Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Hogan is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)

    Dr. Sergio E. Chiarella
    Internal Medicine
    Experienced in Mast Cell Activation Syndrome (MCAS)

    Dr. Sergio E. Chiarella
    Internal Medicine

    Mayo Clinic-Rochester

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-284-9989
    Languages Spoken:
    English, Spanish
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Sergio Chiarella is a primary care provider, practicing in Internal Medicine in Rochester, Minnesota. Dr. Chiarella 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 Asthma, Nasal Polyps, MASS Phenotype, and Pneumonia. Dr. Chiarella is currently accepting new patients.

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

    MN - Cancer Hematology

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-229-0068
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients

    Mark Litzow is a Hematologist practicing medicine in Rochester, Minnesota. Dr. Litzow is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 36 other conditions, according to our data. His clinical expertise encompasses Acute Myeloid Leukemia (AML), Leukemia, Acute Lymphoblastic Leukemia (ALL), Bone Marrow Transplant, and Bone Graft. Dr. Litzow is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)

    Dr. Megha M. Tollefson
    Dermatology | Pediatrics
    Experienced in Mast Cell Activation Syndrome (MCAS)

    Dr. Megha M. Tollefson
    Dermatology | Pediatrics
    Referral may be required

    Mayo Clinic

    200 1st St Sw, 
    Rochester, MN 
     (0.4 miles away)
    507-284-2512
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients

    Megha Tollefson is a Dermatologist and a Pediatrics provider practicing medicine in Rochester, Minnesota. Dr. Tollefson is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 21 other conditions, according to our data. Her clinical expertise encompasses Klippel-Trenaunay Syndrome, Progressive Hemifacial Atrophy, Vascular Birthmark, and Hemangioma. Dr. Tollefson is currently accepting new patients.

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

    MN - Cancer Hematology

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-229-0068
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Mithun Shah is a Hematologist practicing medicine in Rochester, Minnesota. Dr. Shah is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Reticulohistiocytoma, Histiocytosis, Acute Myeloid Leukemia (AML), Bone Marrow Transplant, and Bone Marrow Aspiration. Dr. Shah is currently accepting new patients.

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

    Office

    200 1st St SW, 
    Rochester, MN 
     (0.4 miles away)
    507-284-2511
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients

    Paul Kurtin is a Hematologist practicing medicine in Rochester, Minnesota. Dr. Kurtin is rated as an Experienced 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 Primary Amyloidosis, Non-Hodgkin Lymphoma, B-Cell Lymphoma, and Cardiac Amyloidosis. Dr. Kurtin is currently accepting new patients.

    Experienced in Mast Cell Activation Syndrome (MCAS)
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Referral may be required
    200 1st St Sw, 
    Rochester, MN 
     (0.4 miles away)
    507-284-2511
    Languages Spoken:
    English

    Ruah Alyamany is a Hematologist practicing medicine in Rochester, Minnesota. Dr. Alyamany is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her clinical expertise encompasses Thrombocytopenia, Graft Versus Host Disease (GvHD), Acute Myeloid Leukemia (AML), Tissue Biopsy, and Splenectomy.

    Showing 1-12 of 12

    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 rochester, MN?

    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 rochester, MN?

    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 do I find the best Mast Cell Activation Syndrome (MCAS) doctor near rochester, MN?

    You can find a Mast Cell Activation Syndrome (MCAS) doctor in any of the 10 largest U.S. cities by clicking below:

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    How does MediFind rank Mast Cell Activation Syndrome (MCAS) doctors near rochester, MN?

    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 rochester, MN?

    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 rochester, MN?

    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 rochester, MN?

    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 rochester, MN?

    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 

    Read more about our Content Policy. 

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