Boulder Allergy Clinic

We take care of people.

Boulder Allergy Clinic

We take care of people.

Boulder Valley Allergy Clinic is open for patient visits.

In response to the coronavirus (COVID-19), Boulder Valley Ear, Nose & Throat wants to assure our patients and the community that we are closely monitoring the situation and following guidance from public health officials and government agencies.

As part of our commitment to help protect the welfare of our patients and employees, we have recently implemented additional measures to provide patient safety within our clinics.


We are a customer service driven medical based allergy clinic specializing in testing and treatment for upper respiratory allergies. Our team of doctors and technicians provides accurate testing, in-depth counselling, and targeted treatments utilizing sublingual immunotherapy (SLIT)-allergy drops.  As a courtesy, allergy drops can be conveniently shipped to our patients (shipping costs may apply).

Our Services

Sublingual Immunotherapy

We use drops to slowly help increase your tolerance or immunitity to certain allergies. As a courtesy, allergy drops can be conveniently shipped to our patients (shipping costs may apply).

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Allergy Tests

We offer both skin and blood testing. Our team will help you determine the best route based on your needs and desires.

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Patient Forms

Please take a moment to review our patient forms and HIPAA Patient Privacy Policy.

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We Collaborate With Other Medical Professionals on


Food Allergies


Complex Asthma Issues


Complicated Dermatologic Allergies

Why Boulder Valley?


Led by Donald Maschka, M.D. who is fellowship trained in otolaryngic (upper respiratory) allergy, Boulder Allergy Clinic is physician owned and operated by the physician partners at Boulder Valley Ear, Nose and Throat.


We are the only practice that specializes in upper respiratory inhalant allergy issues by providing testing, treatment, ENT physician support, and tailoring the right treatment modalities to ideally fit our patients' needs.


We put the patient first all the time, and in every way.


No uncomfortable allergy shots

Meet Our Specialists

Donald A. Maschka


Stephane Stumpf

Allergy Technician

Our Hours

8:30am – 4:00pm (M – F)

Closed 12:00pm – 1:00pm for Cleaning (M – F)

Testing Appointments 8:30am – 3:00pm (M – F)

We will make every effort to get you in to see us on the same day you call. We strive to answer every phone call with a live person and not a recording to help expedite your care.

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We take care of people.

Office hours are 8:30am to 4:00pm (Monday-Friday)

Closed 12:00pm to 1:00pm for Cleaning (Monday-Friday)

Testing appointments 8:30am to 3:00pm (Monday-Friday)


(303) 558-8808

4745 Arapahoe Ave. Suite 130, Boulder, CO 80303 (testing available)

90 Health Park Dr. Suite 220, Louisville, CO 80027

300 Exempla Circle Suite 210, Lafayette, CO 80026 (testing available)