About Us

Allergy & Environmental Treatment Center, LLC, located in Scottsdale, Arizona, is an allergy testing and immunotherapy clinic that provides comprehensive testing and treatment to children and adults throughout the country. Lawrence Liszewski, MS, DO and his compassionate team offer exceptional care grounded in more than 35 years of allergy, medical, and environmental medicine experience.

The team treats all types of allergies, from seasonal allergies and food allergies to chemical sensitivities and allergic skin conditions. They determine the root causes of each person’s allergies, including those who haven’t been helped by other clinics. Advanced testing allows them to precisely diagnose the source of symptoms and develop customized allergy treatment. 

Each patient can count on individualized care that encompasses comprehensive allergy testing, immunotherapy, therapeutic diets, nutritional supplementation, and extensive patient education. They work tirelessly to teach environmental and lifestyle changes that improve each person’s quality of life.

The team is highly regarded by physicians who refer their allergy patients to Allergy & Environmental Treatment Center, LLC. 

The team at Allergy & Environmental Treatment Center, LLC, has helped countless allergy patients return to a healthy and vibrant lifestyle. Don’t wait any longer to gain relief from your allergy symptoms. Call the office or book an appointment online today.

Insurances Accepted

If you do not see your insurance company listed, give us a call. Not all insurances are listed.

All Care
Anthem Blue Cross Blue Shield
Arizona Foundation for Medical Care
Blue Cross Blue Shield
EMI Health
Golden Rule
Oscar Health

Choose Your Provider

Why Do I Break Out When I Wear Jewelry?

Your jewelry is a fashion statement. But if you have a metal allergy, it can also be the source of bothersome rash breakouts. Metals like nickel can cause itchy, painful rashes, and it’s time to find a treatment to stop the irritation.

Am I a Candidate for Immunotherapy?

Are you tired of suffering with severe allergy symptoms? Bothered by allergy medications that don’t make a difference? It’s time to learn more about immunotherapy, a safe treatment that tackles the cause of your allergies to provide lasting relief.

I Break Out in Hives When I Eat Nuts: Am I Allergic?

Have you noticed itchy, red welts appearing on your skin? Hives are a common symptom of mild food allergies, including peanut and tree nut allergies. Learn the signs of a nut allergy and what to do if you think you or your child might have one.


Words from our patients

  • Google

    "I highly recommend giving them a visit if you've been dealing with allergies or any allergy related symptoms that just won't seem to go away."

    Tyler S.
  • Google

    "If you just have mild allergies, you've got allergists to chose from around town. If you have the real severe allergies, come here!"

    Erica C.
  • Google

    "Dr. Liszewski is extremely thorough and listens to what I say; he is caring and very professional."

    Ioan D.
  • Yelp

    "This is outstanding service and they always go above and beyond to help me!!! The staff and doctors are all excellent!!!! Go there and you'll be so happy and healthy!!!"

    Carolyn C.
  • Yelp

    "They were great to work with and helped me better understand what was problematic for me. Now in the midst of allergy season and I am not bothered by allergies!"

    Tami V.
  • Yelp

    "I just changed primary care doctors to Dr. Liszewski. He is one of the best doctors I have been to."

    Debbie H.


Allergy & Environmental Treatment Center, LLC
8952 E. Desert Cove Ave., Suite 114
Scottsdale, AZ 85260
Phone: 480-634-2985
Fax: 480-634-2987

Office Hours

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