Allergist Directory

Find an allergist near you

Search allergists by provider name, practice, city, state, ZIP, specialty, and allergy services. Compare local care options alongside AllergyAva pollen forecasts.

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Allergy & Immunology

Dr. William Anderson

Children's Hospital Colorado

Aurora, CO 80045

(720) 777-2575

Call to confirm availability

Dr. William Anderson is a pediatric allergy and immunology specialist at Children's Hospital Colorado in Aurora. His background in both internal medicine and pediatrics helps families manage asthma, environmental allergies, food allergy concerns and immune-related conditions with a long-term view of a child's health. Patients looking for an allergist in Aurora, CO can find care focused on practical treatment planning, quality of life and coordination with the broader Children's Colorado allergy team.

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Allergy Care Guide

Allergists are physicians trained to diagnose and manage allergic disease, asthma, eczema, hives, medication reactions, immune concerns, and food allergy risk. Use the directory to compare nearby physicians, but confirm insurance coverage, referral requirements, and testing availability with the office.

What is the difference between an allergist and an ENT?

An allergist focuses on immune-system causes of symptoms, allergy testing, asthma care, immunotherapy, and reactions to foods, medicines, insects, pets, pollen, and mold. An ENT focuses on surgical and structural conditions of the ear, nose, throat, sinuses, tonsils, voice, and airway. Many patients benefit from both: an ENT may evaluate chronic sinus blockage, while an allergist identifies triggers that drive inflammation or asthma flares.

What should you expect during your first allergy test?

Most first visits start with a symptom history, medication review, exposure review, and focused physical exam. If skin testing is appropriate, small amounts of common allergens are placed on or under the skin and checked for a controlled reaction. Some patients need blood testing instead, especially when skin testing is not safe or medicines cannot be paused.

How should you prepare your child for pediatric allergy testing?

Ask the clinic which antihistamines or sleep aids should be stopped before the appointment, bring a list of reactions and foods or environments involved, and pack snacks, comfort items, and past test results. Tell children that testing may feel itchy or briefly uncomfortable but should not feel like a vaccine shot.