All Major Insurances are Accepted Including Medicare






About Us

San Tan Allergy & Asthma provides testing services and treatment for a wide variety of allergic and immunologic conditions. The doctors and physician assistants at San Tan Allergy & Asthma see patients for conditions involving the respiratory system including asthma, cough and sinus problems, and hay fever. We perform in-office skin testing and patch testing in addition to treating eczema, allergic dermatitis, hives and angioedema. Also, San Tan Allergy & Asthma is one of the top testing facilities for food allergies and performs testing for food protein induced enterocolitis syndrome (FPIES). Our team is well-equipped to help manage patients with a variety of immune deficiencies. We offer a wide range of services throughout the valley including skin allergy treatment near Mesa, sinus problems in Gilbert, and our asthma specialists near Chandler are both caring and responsive toward your respiratory issues and other conditions.


Our Mission
The providers and staff at San Tan Allergy & Asthma strive to provide the highest quality care for patients affected by a variety of allergic and immune conditions including asthma, atopic dermatitis, food allergies, allergic rhinitis (hay-fever), hives, and immune deficiency syndromes. We believe in a patient-centered approach, where each patient is unique and their management individualized. We utilize an evidence-based approach and offer cutting-edge technology to tailor our treatment plans to fit our patient’s needs. All of us at San Tan Allergy & Asthma enjoy what we do, and we hope it shows!

Conditions We Treat
After Hours On Call Service
We are happy to be able to offer an after hours on call emergency service to our patients as we know how critical it can be dealing with some of the different health conditions. If you are experiencing an emergency and need immediate assistance, one of our providers is always standing by after our normal business hours to be able to assist you.
Patient Testimonials

Staff is professional and always very friendly!
“ After allergy testing, Dr. Shimamoto explained the process and options of allergy injections and answered all my questions. I follow up with Heidi, who is also great! As of now, I’m still doing weekly injections and it’s been easy to get desired appointment day and times. I am happy that I chose San Tan Allergy!”

“Thank you for being Professional and Caring.”



Lisa Blaylock ★★★★★
“ Watch out for telemedicine appointments. Make sure you have pre-screened for them. Worked with Jackie over the phone. She is fantastic–super patient and professional. Had exam and skin tests ordered by Dr. Shimamoto. He’s happy and efficient. Great practice, just need to be patient with all the delays and possible miscommunications due to all the pandemic-imposed restrictions.”
E. M. ★★★★★
“ Everything was so nice. The reception in the front desk of the best. I didn’t have a appointment. And they look and got me one next day. Two girl in the other office were also so nice. My son goes there. I’m from El paso and I was very impressed. Thanks again.”
Rita Romo★★★★★
Frequently Asked Questions About Our Allergy Treatments

Eczema Clinic
The Eczema Center at San Tan Allergy and Asthma is the first comprehensive eczema treatment center in Arizona. Our board certified physicians have extensive knowledge in the diagnosis and treatment of eczema and have high rates of success in achieving disease response and sustained improvement.
Visit us at any of
our locations

Gilbert Location

4915 E. Baseline Road, Suite 112
Gilbert, AZ 85234-2966
Monday-Thursday: 8:00 am – 5:00 pm
Friday: 8:00 am – 3:00 pm
Payson Location

708 S. Coeur D’Alene Lane Suite C
Payson, AZ 85541
IN THE NEWS
Recent Blogs By San Tan Allergy & Asthma
Causes Of Chronic Sinusitis & How To Treat It
Chronic Sinusitis: Symptoms, Diagnosis & Treatment Millions of Americans are affected by chronic sinusitis. This common condition can cause [...]
What’s The Difference Between A Skin Prick & Skin Patch Allergy Test?
Allergy Testing: Determining The Source Of An Allergic Reaction Have you ever wondered why some allergy tests require a skin [...]
What Are The Different Types Of Eczemas & How To Treat Them?
Eczema: Symptoms, Treatment & Cause Most people get eczema at some point in their lives, but some develop chronic forms [...]
Can Allergies Cause Headaches? Here’s What To Know
Allergy Headaches: Causes, Symptoms & Treatment Allergic rhinitis or hay fever is a common condition that affects millions of Americans [...]
Contact Us | Get Scheduled

Schedule an Appointment
Welcome to San Tan Allergy & Asthma and thank you for choosing our practice! Please provide your contact information here to schedule a New patient appointment at one of our locations and one of our front office staff members will call you within the next business day to assist you. We look forward to treating you and hope we can help you!