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    Last Updated: 01/09/2026

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    MediFind found 15 doctor with experience in Mast Cell Activation Syndrome (MCAS) near Boulder, CO. Of these, 13 are Experienced and 2 are Advanced.

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    15 providers found
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Allergy and Immunology
      Advanced in Mast Cell Activation Syndrome (MCAS)
      Allergy and Immunology

      Boulder Medical Center

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Karen Andrews is an Allergy and Immunologist in Boulder, Colorado. Dr. Andrews is rated as an Advanced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Primary Immunodeficiency (PID), Sinusitis, Allergic Rhinitis, and Grass Allergy.

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

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Krista Toomre is a primary care provider, practicing in Family Medicine in Boulder, Colorado. Dr. Toomre is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Menopause, Vertigo, Hypertension, and Glucocorticoid-Remediable Aldosteronism. Dr. Toomre is currently accepting new patients.

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

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Lori Maran is a Rheumatologist in Boulder, Colorado. Dr. Maran 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, Osteoporosis, and Postmenopausal Osteoporosis. Dr. Maran is currently accepting new patients.

      Learn about our expert tiers
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Physician Assistant
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Physician Assistant

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English

      Elizabeth Helgans is a Physician Assistant in Boulder, Colorado. Ms. Helgans 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), Non-Alcoholic Fatty Liver Disease, Gallbladder Disease, and Nonalcoholic Steatohepatitis (NASH).

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

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Experience:
      18+ years
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Fabiana Monte-Alegre is a primary care provider, practicing in Internal Medicine in Boulder, Colorado. Dr. Monte-Alegre has been practicing medicine for over 18 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 Attention Deficit Hyperactivity Disorder (ADHD), Hypothyroidism, Obesity in Children, and Menopause. Dr. Monte-Alegre is currently accepting new patients.

      Experienced in Mast Cell Activation Syndrome (MCAS)
      Nurse Practitioner
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Nurse Practitioner
      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Madeline Hoglund is a Nurse Practitioner in Boulder, Colorado. Ms. Hoglund is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Aseptic and Alopecic Nodules of Scalp (AANS), Mast Cell Activation Syndrome (MCAS), and Chronic Spontaneous Urticaria (CSU). Ms. Hoglund is currently accepting new patients.

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

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Stuart Weisman is a Rheumatologist in Boulder, Colorado. Dr. Weisman is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Rheumatoid Arthritis (RA), Ankylosing Spondylitis, Axial Spondyloarthritis (AxSpA), and Rheumatoid Pneumoconiosis. Dr. Weisman is currently accepting new patients.

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

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Hilary Wallace is a primary care provider, practicing in Internal Medicine in Boulder, Colorado. Dr. Wallace is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Hypothyroidism, Melorheostosis with Osteopoikilosis, Melorheostosis, and Osteopenia. Dr. Wallace is currently accepting new patients.

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

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Laura Erben is a primary care provider, practicing in Internal Medicine in Boulder, Colorado. Dr. Erben is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Type 2 Diabetes (T2D), High Cholesterol, Hypothyroidism, and Vertigo. Dr. Erben is currently accepting new patients.

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

      Boulder Medical Center, PC

      2750 Broadway St, 
      Boulder, CO 
       (0.6 miles away)
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Emma Mccarty is a primary care provider, practicing in Pediatrics and Internal Medicine in Boulder, Colorado. Dr. Mccarty is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Sitosterolemia, Psoriatic Arthritis, Psoriasis, and Hypothyroidism. Dr. Mccarty is currently accepting new patients.

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

      Boulder Medical Center, PC

      4745 Arapahoe Ave, Suite 200, 
      Boulder, CO 
       (2.1 miles away)
      Languages Spoken:
      English
      Accepting New Patients

      Rebecca Juliar is a primary care provider, practicing in Family Medicine in Boulder, Colorado. Dr. Juliar is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Premenstrual Syndrome, Alopecia Areata, Autosomal Recessive Hypotrichosis, Musculocontractural Ehlers-Danlos Syndrome (mcEDS), and Intrauterine Device Insertion. Dr. Juliar is currently accepting new patients.

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

      Office

      2 Garden Ctr Ste 201, 
      Broomfield, CO 
       (12.2 miles away)
      Languages Spoken:
      English

      Michael Volz is an Internal Medicine provider in Broomfield, Colorado. Dr. Volz 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), Bloom Syndrome, and Urticaria Pigmentosa.

      Isaac Melamed
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Experienced in Mast Cell Activation Syndrome (MCAS)

      Veros Health

      1551 Professional Lane, Suite 170, 
      Longmont, CO 
       (12.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Isaac Melamed is a Pediatrics provider in Longmont, Colorado. Dr. Melamed is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). His top areas of expertise are Primary Immunodeficiency (PID), Common Variable Immune Deficiency, Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus Infections, and Hereditary Angioedema.

      Edan Sarid
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatrics
      Experienced in Mast Cell Activation Syndrome (MCAS)
      Pediatrics

      Veros Health

      1551 Professional Lane, Suite 170, 
      Longmont, CO 
       (12.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Edan Sarid is a Pediatrics provider in Longmont, Colorado. Dr. Sarid 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, Primary Immunodeficiency (PID), Hereditary Angioedema, and Complement Component 2 Deficiency.

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

      Northern Medical Associates

      1420 W Midway Blvd, 
      Broomfield, CO 
       (12.0 miles away)
      Languages Spoken:
      English

      Shannon Hill is a Holistic Medicine provider in Broomfield, Colorado. Ms. Hill is rated as an Experienced provider by MediFind in the treatment of Mast Cell Activation Syndrome (MCAS). Her top areas of expertise are Seasonal Affective Disorder (SAD), Muscle Spasms, Pelvic Floor Dysfunction, and Beryllium Disease.

      Showing 1-15 of 15

      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 near Boulder, CO?

      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 Boulder, CO?

      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 Boulder, CO?

      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 Boulder, CO?

      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 Boulder, CO?

      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 Boulder, CO?

      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 Boulder, CO?

      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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