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    Last Updated: 01/09/2026

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    MediFind found 105 doctor with experience in Mast Cell Activation Syndrome (MCAS) near Ohio, US. Of these, 90 are Experienced and 14 are Advanced.

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    105 providers found
      James Fernandez
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Allergy and Immunology
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Allergy and Immunology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      32+ years
      Languages Spoken:
      English
      Offers Telehealth

      James Fernandez is an Allergy and Immunologist in Cleveland, Ohio. Dr. Fernandez has been practicing medicine for over 32 years and is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Common Variable Immune Deficiency, Primary Immunodeficiency (PID), Hives, and Simple Pulmonary Eosinophilia.

      Fred Hsieh
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      36+ years
      Languages Spoken:
      English
      Offers Telehealth

      Fred Hsieh is a Pediatric Allergy and Immunologist in Cleveland, Ohio. Dr. Hsieh has been practicing medicine for over 36 years and is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Chronic Spontaneous Urticaria (CSU), Anaphylaxis, Mast Cell Activation Syndrome (MCAS), and Common Variable Immune Deficiency.

      Gabrielle Koczab
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Family Medicine
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Family Medicine

      Chagrin Falls Family Health Center

      551 Washington Street, 
      Chagrin Falls, OH 
      Languages Spoken:
      English
      Offers Telehealth

      Gabrielle Koczab is a primary care provider, practicing in Family Medicine in Chagrin Falls, Ohio. Dr. Koczab is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Familial Chronic Mucocutaneous Candidiasis, Gas Bloat Syndrome, Exocrine Pancreatic Insufficiency, and Mast Cell Activation Syndrome (MCAS).

      Learn about our expert tiers
      Erik Modlo
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Thoracic Surgery | Hospital Medicine
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Thoracic Surgery | Hospital Medicine

      Chagrin Falls Family Health Center

      551 Washington Street, 
      Chagrin Falls, OH 
      Experience:
      23+ years
      Languages Spoken:
      English
      Offers Telehealth

      Erik Modlo is a Thoracic Surgeon and a Hospital Medicine provider in Chagrin Falls, Ohio. Dr. Modlo has been practicing medicine for over 23 years and is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are MAGIC Syndrome, Mast Cell Activation Syndrome (MCAS), Malabsorption, and Vitamin D Deficiency.

      Rim Ishak
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      22+ years
      Languages Spoken:
      English, Arabic
      Offers Telehealth

      Rim Ishak is a Pediatric Allergy and Immunologist in Cleveland, Ohio. Dr. Ishak has been practicing medicine for over 22 years and is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Mast Cell Activation Syndrome (MCAS), Chronic Spontaneous Urticaria (CSU), and Hereditary Alpha-Tryptasemia.

      Experienced in Mast Cell Activation Syndrome (MCAS)
      Hematology Oncology | Hematology | Oncology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Hematology Oncology | Hematology | Oncology

      Promedica Central Physicians

      2109 Hughes Dr, Suite 450, 
      Toledo, OH 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Drew Oostra is a Hematologist Oncology specialist and a Hematologist in Toledo, Ohio. Dr. Oostra is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Pulmonary Embolism, Deep Vein Thrombosis, Bernard-Soulier Syndrome, and Glanzmann Thrombasthenia. Dr. Oostra is currently accepting new patients.

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

      University Primary Care Practices Inc

      158 W Main Rd, 
      Conneaut, OH 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Ian Suzelis is a primary care provider, practicing in Family Medicine in Conneaut, Ohio. Dr. Suzelis is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Pelvic Floor Dysfunction, Vitamin D Deficiency, Hypothyroidism, and Hypertension. Dr. Suzelis 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

      Akron General Medical Office Building Kent

      1365 Kelso Rd, 
      Kent, OH 
      Languages Spoken:
      English
      Offers Telehealth

      Inderprit Singh is an Allergy and Immunologist in Kent, Ohio. Dr. Singh is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Sjogren Syndrome, Interstitial Keratitis, Fibromyalgia, and Rheumatoid Arthritis (RA).

      Lily Pien
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Allergy and Immunology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Allergy and Immunology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      45+ years
      Languages Spoken:
      English
      Offers Telehealth

      Lily Pien is an Allergy and Immunologist in Cleveland, Ohio. Dr. Pien has been practicing medicine for over 45 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Hives, Angioedema, Eosinophilic Pneumonia, and Simple Pulmonary Eosinophilia.

      Devon Preston
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology

      Lakewood Family Health Center

      14601 Detroit Avenue, 
      Lakewood, OH 
      Languages Spoken:
      English

      Devon Preston is a Pediatric Allergy and Immunologist in Lakewood, Ohio. Dr. Preston is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are MAGIC Syndrome, Anaphylaxis, Mast Cell Activation Syndrome (MCAS), and Common Variable Immune Deficiency.

      Laura Maurer
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology

      Medical Outpatient Center, North Ridgeville

      34960 Center Ridge Road, 
      North Ridgeville, OH 
      Languages Spoken:
      English

      Laura Maurer is a Pediatric Allergy and Immunologist in North Ridgeville, Ohio. Dr. Maurer is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Mast Cell Activation Syndrome (MCAS), Anaphylaxis, Aseptic and Alopecic Nodules of Scalp (AANS), and Common Variable Immune Deficiency.

      Mark Aronica
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Languages Spoken:
      English
      Offers Telehealth

      Mark Aronica is a Pediatric Allergy and Immunologist in Cleveland, Ohio. Dr. Aronica is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Chronic Spontaneous Urticaria (CSU), Common Variable Immune Deficiency, Anaphylaxis, and Mast Cell Activation Syndrome (MCAS).

      Bela Faltay
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology

      Akron General Physician Office Building

      224 West Exchange Street, 
      Akron, OH 
      Experience:
      32+ years
      Languages Spoken:
      English
      Offers Telehealth

      Bela Faltay is a Pediatric Allergy and Immunologist in Akron, Ohio. Dr. Faltay has been practicing medicine for over 32 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Common Variable Immune Deficiency, Anaphylaxis, Vocal Cord Dysfunction, and Chronic Rhinosinusitis with Nasal Polyps (CRSwNP).

      Matthew Lau
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatric Allergy and Immunology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      44+ years
      Languages Spoken:
      English
      Offers Telehealth

      Matthew Lau is a Pediatric Allergy and Immunologist in Cleveland, Ohio. Dr. Lau has been practicing medicine for over 44 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Anaphylaxis, Chronic Spontaneous Urticaria (CSU), Hereditary Alpha-Tryptasemia, and Mast Cell Activation Syndrome (MCAS).

      Shirley Paski
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Gastroenterology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Gastroenterology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      29+ years
      Languages Spoken:
      English
      Offers Telehealth

      Shirley Paski is a Gastroenterologist in Cleveland, Ohio. Dr. Paski has been practicing medicine for over 29 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Short Bowel Syndrome, Angiodysplasia of the Colon, Malnutrition, Endoscopy, and Colonoscopy.

      Adam Brown
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Rheumatology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Rheumatology

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      20+ years
      Languages Spoken:
      English
      Offers Telehealth

      Adam Brown is a Rheumatologist in Cleveland, Ohio. Dr. Brown has been practicing medicine for over 20 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Rhizomelic Pseudopolyarthritis, Polymyalgia Rheumatica, Rheumatoid Arthritis (RA), and Necrotizing Vasculitis.

      Aaron Gerds
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Hematology Oncology | Hematology | Oncology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Hematology Oncology | Hematology | Oncology

      Cleveland Clinic Main Campus

      10201 Carnegie Avenue, 
      Cleveland, OH 
      Experience:
      24+ years
      Languages Spoken:
      English
      Offers Telehealth

      Aaron Gerds is a Hematologist Oncology specialist and a Hematologist in Cleveland, Ohio. Dr. Gerds has been practicing medicine for over 24 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Myelofibrosis, Myeloproliferative Neoplasms (MPN), Polycythemia Vera, Bone Marrow Aspiration, and Bone Marrow Transplant.

      Kenneth Mayuga
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Cardiac Electrophysiology | Cardiology
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Cardiac Electrophysiology | Cardiology

      Cleveland Clinic Main Campus

      9500 Euclid Avenue, 
      Cleveland, OH 
      Experience:
      27+ years
      Languages Spoken:
      English
      Offers Telehealth

      Kenneth Mayuga is a Cardiac Electrophysiologist and a Cardiologist in Cleveland, Ohio. Dr. Mayuga has been practicing medicine for over 27 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Postural Orthostatic Tachycardia Syndrome (POTS), Arrhythmias, Familial Neurocardiogenic Syncope, Cardiac Ablation, and Pacemaker Implantation.

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

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Languages Spoken:
      English
      Offers Telehealth

      Sobia Khan is a primary care provider, practicing in Internal Medicine in Cleveland, Ohio. Dr. Khan is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Vertigo, Menopause, Premenstrual Syndrome, Hyperhidrosis, and Intrauterine Device Insertion.

      Cassandra Calabrese
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Experienced in Mast Cell Activation Syndrome (MCAS)

      Cleveland Clinic Main Campus

      2049 East 100th Street, 
      Cleveland, OH 
      Experience:
      19+ years
      Languages Spoken:
      English
      Offers Telehealth

      Cassandra Calabrese is a Rheumatologist in Cleveland, Ohio. Dr. Calabrese has been practicing medicine for over 19 years and is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Rhizomelic Pseudopolyarthritis, Polymyalgia Rheumatica, Rheumatoid Arthritis (RA), and Sjogren Syndrome.

      Showing 1-20 of 105

      Last Updated: 01/09/2026

      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 Ohio, 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 Ohio, 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 Ohio, 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 Ohio, 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 Ohio, 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 Ohio, 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 Ohio, 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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