The 20 Best Mast Cell Activation Syndrome (MCAS) Doctors Near Me in Wisconsin, US

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

Last Updated: 09/26/2026

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MediFind found 26 doctor with experience in Mast Cell Activation Syndrome (MCAS) near Wisconsin, US. Of these, 22 are Experienced and 4 are Advanced.

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26 providers found
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine
    Experienced in Mast Cell Activation Syndrome (MCAS)
    Internal Medicine

    Junction Rd Medical Center Internal Medicine Clinic

    451 Junction Rd, 
    Madison, WI 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Kelly Herold is a primary care provider, practicing in Internal Medicine in Madison, Wisconsin. Dr. Herold 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 Boils, Maturity Onset Diabetes of the Young, Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Herold is board certified in Internal Medicine. Dr. Herold is currently accepting new patients.

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

    Aurora Internal Medicine

    3003 W Good Hope Rd, 
    Milwaukee, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Jeffrey Bahr is a primary care provider, practicing in Internal Medicine in Milwaukee, Wisconsin. Dr. Bahr is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 454 other conditions, according to our data. His clinical expertise encompasses Hypertension, Familial Hypertension, Glucocorticoid-Remediable Aldosteronism, High Cholesterol, and Intrauterine Device Insertion. Dr. Bahr is board certified in American Board Of Internal Medicine. Dr. Bahr is currently accepting new patients.

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

    Junction Rd Medical Center Allergy, Asthma And Immunology Clinic

    451 Junction Rd, 
    Madison, WI 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sameer Mathur is a Pediatric Allergy and Immunologist and an Allergy and Immunologist practicing medicine in Madison, Wisconsin. Dr. Mathur 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 Hypereosinophilic Syndrome, Hives, Chronic Spontaneous Urticaria (CSU), and Eosinophilic Asthma. Dr. Mathur is board certified in Allergy & Immunology. Dr. Mathur 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

    ProHealth Medical Group New Berlin

    13900 W National Ave, 
    New Berlin, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Krisztian Nemeth is a Dermatologist practicing medicine in New Berlin, Wisconsin. Dr. Nemeth 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 Basal Cell Skin Cancer, Dermatitis Herpetiformis, Actinic Keratosis, and Uncombable Hair Syndrome. Dr. Nemeth is currently accepting new patients.

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

    Family Care Of The Fox Cities SC

    W3124 Van Roy Road, 
    Appleton, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Wendy Schroeder is a primary care provider, practicing in Family Medicine in Appleton, Wisconsin. Dr. Schroeder is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). She is also highly rated in 12 other conditions, according to our data. Her clinical expertise encompasses Generalized Anxiety Disorder (GAD), Pelvic Floor Dysfunction, Familial Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Schroeder is board certified in American Osteopathic Board Of Family Physicians (2009) and Family Medicine, American Board Of Family Medicine (2009). Dr. Schroeder is currently accepting new patients.

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

    Mchs Hospitals Inc

    1000 N Oak Ave, 
    Marshfield, WI 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sierra Miller is a Nurse Practitioner practicing medicine in Marshfield, Wisconsin. Miller, NP is rated as an Advanced 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 Mast Cell Activation Syndrome (MCAS) and Traumatic Brain Injury. Miller, NP is currently accepting new patients.

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

    Bellin Health Oconto Hospital

    820 Arbutus Ave, 
    Oconto, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Alan James is an Allergy and Immunologist practicing medicine in Oconto, Wisconsin. Dr. James 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 Allergic Rhinitis, Sinusitis, Grass Allergy, and Common Variable Immune Deficiency. Dr. James is currently accepting new patients.

    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 Associates Holdings LTD.

    2727 Midwest Dr, 
    Onalaska, WI 
    Languages Spoken:
    English, Greek
    Offers Telehealth

    Demetrios Theodoropoulos is an Allergy and Immunologist practicing medicine in Onalaska, Wisconsin. Dr. Theodoropoulos is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Allergic Rhinitis, Sinusitis, Grass Allergy, and Hives.

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

    Junction Rd Medical Center Allergy, Asthma And Immunology Clinic

    451 Junction Rd, 
    Madison, WI 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Ravi Viswanathan is an Allergy and Immunologist practicing medicine in Madison, Wisconsin. Dr. Viswanathan is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Hives, Chronic Spontaneous Urticaria (CSU), Angioedema, and Eosinophilic Pneumonia. Dr. Viswanathan is board certified in Allergy & Immunology and Internal Medicine. Dr. Viswanathan 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

    Aurora Health Center

    700 Park Ridge Ln, 
    North Fond Du Lac, WI 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Anita Rigoni is an Allergy and Immunologist practicing medicine in North Fond Du Lac, Wisconsin. Dr. Rigoni is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her clinical expertise encompasses Hives, Allergic Rhinitis, Chronic Spontaneous Urticaria (CSU), and Vibratory Urticaria. Dr. Rigoni is board certified in American Board Of Allergy & Immunology. Dr. Rigoni 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

    Junction Rd Medical Center Adult Immunodeficiency Clinic

    451 Junction Rd, 
    Madison, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Mark Moss is an Allergy and Immunologist practicing medicine in Madison, Wisconsin. Dr. Moss is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Common Variable Immune Deficiency, Primary Immunodeficiency (PID), Eosinophilic Asthma, and Chronic Eosinophilic Pneumonia. Dr. Moss is currently accepting new patients.

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

    M Health Fairview Clinics - River Falls

    319 South Main Street, 
    River Falls, WI 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Monica Pesavento is a primary care provider, practicing in Family Medicine in River Falls, Wisconsin. Dr. Pesavento is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her clinical expertise encompasses Generalized Anxiety Disorder (GAD), Melorheostosis with Osteopoikilosis, Melorheostosis, and Osteopenia. Dr. Pesavento is board certified in Family Medicine: American Board Of Family Medicine, 2007. Dr. Pesavento 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

    Asthma / Allergy Center

    9000 W. Wisconsin Ave., 
    Milwaukee, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Joshua Steinberg is an Allergy and Immunologist practicing medicine in Milwaukee, Wisconsin. Dr. Steinberg 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 Asthma, Mast Cell Activation Syndrome (MCAS), Chronic Spontaneous Urticaria (CSU), and Vibratory Urticaria. Dr. Steinberg is board certified in Internal Medicine and Allergy And Immunology. Dr. Steinberg is currently accepting new patients.

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

    UltraVitalityMD

    65 Deerwood Ct, 
    Hudson, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Clemma Nash is a primary care provider, practicing in Family Medicine in Hudson, Wisconsin. Dr. Nash is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her clinical expertise encompasses Hypervitaminosis D, Mast Cell Activation Syndrome (MCAS), Irritable Bowel Syndrome (IBS), and Homocystinuria. Dr. Nash 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

    Ear Nose & Throat Specialists Of WI SC

    119 E Bell Street, 
    Neenah, WI 
    Languages Spoken:
    English, Spanish
    Accepting New Patients

    Christopher Mjaanes is an Allergy and Immunologist practicing medicine in Neenah, Wisconsin. Dr. Mjaanes 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 Allergic Rhinitis, Sinusitis, Grass Allergy, and Vibratory Urticaria. Dr. Mjaanes is board certified in Pediatrics, American Board Of Pediatrics (2003) and American Board Of Allergy & Immunology (2005). Dr. Mjaanes 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

    Milwaukee Campus-Children's Wisconsin

    8915 W Connell Ave, 
    Milwaukee,, WI 
    Languages Spoken:
    English
    Accepting New Patients

    Barry Pelz is an Allergy and Immunologist practicing medicine in Milwaukee,, Wisconsin. Dr. Pelz is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His clinical expertise encompasses Food Allergy, Eosinophilic Esophagitis, Mast Cell Activation Syndrome (MCAS), and Anaphylaxis. Dr. Pelz is currently accepting new patients.

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

    Office

    1660 Sue Alan Dr, 
    Wittenberg, WI 
    Experience:
    17+ years
    Languages Spoken:
    English
    Accepting New Patients

    Emily Calonder is a Nurse Practitioner practicing medicine in Wittenberg, Wisconsin. She has been practicing medicine for over 17 years. Calonder, NP 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). Calonder, NP is currently accepting new patients.

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

    Dean Retail Services Inc.

    752 N High Point Rd, 
    Madison,, WI 
    Languages Spoken:
    English

    Allan Luskin is a primary care provider, practicing in Internal Medicine in Madison,, Wisconsin. Dr. Luskin 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, Hives, X-Linked Severe Combined Immunodeficiency, and Severe Combined Immunodeficiency (SCID).

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

    Office

    407 S Main St Ste 102, 
    Viroqua, WI 
    Languages Spoken:
    English

    Paul Bergquist is a primary care provider, practicing in Family Medicine in Viroqua, Wisconsin. Dr. Bergquist 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 Lyme Disease, Brittle Cornea Syndrome, Post Polio Syndrome, and Vascular Ehlers-Danlos Syndrome (VEDS).

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

    Mayo Clinic Health System Eau Claire Family Medicine Luther Campus Clinic

    1400 Bellinger St, 
    Eau Claire,, WI 
    Languages Spoken:
    English, Polish
    Accepting New Patients
    Offers Telehealth

    Adela Taylor is an Allergy and Immunologist practicing medicine in Eau Claire,, Wisconsin. Dr. Taylor 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 Allergic Rhinitis, Common Variable Immune Deficiency, Sinusitis, and Primary Immunodeficiency (PID). Dr. Taylor is currently accepting new patients.

    Showing 1-20 of 26

    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 in Wisconsin, 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 Mast Cell Activation Syndrome (MCAS) doctor in Wisconsin, 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 Mast Cell Activation Syndrome (MCAS) doctors in Wisconsin, 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 Mast Cell Activation Syndrome (MCAS) doctors in Wisconsin, 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 Mast Cell Activation Syndrome (MCAS) doctor in Wisconsin, 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 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 in Wisconsin, 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 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 in Wisconsin, US?

    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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