Our Physicians are Board Certified by the American Board of Allergy and Immunology. Our Mid-Level Providers have all been board certified as well. Our physicians have won many awards, including “Top Docs” awards from Phoenix magazine. Our Providers rotate each of our locations throughout the “Valley of the Sun” including Chandler, Mesa, Central Phoenix, North Scottsdale and San Tan Valley.


Advanced Practice Providers
Dr. Duane W. Wong

MD:Northwestern University's Feinberg School of Medicine

Dr. Darrell W. Wong

MD: FUHS/The Chicago Medical School

Dr. Laine E. Keahey

MD: University of Manitoba

Dr. Radha G. Rishi

MD, FAAAAI, FACAAI University of Tennessee

Dr. Rahul S. Rishi

DO, FAAAAI, FACAAI Nova Southeastern University

Dr. David Reeder

MD, Board-Certified

Advanced Practice Providers

Marissa Ciaramitaro

PA-C, Barry University

Allison Ungs

PA-C Midwestern University

Caitlin Suriano, PA-C

PA-C, A.T. Still University

Katie Lu
Katie Lu

PA-C, Northern Arizona University

Olivia Goff

PA-C, Northern Arizona University


Dr. Kenneth A. Tollackson

M.D.: BS - Harvard University

Dr. Robert W. Hellmers

MD: University of California, Irvine


Telephones are answered from 8am – 5pm, Mon – Thurs
8am – 4pm, Fri

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Dear Arizona Allergy Associates Community,

We want to reassure you that we are taking all precautions to prevent the transmission of viral illnesses, including COVID-19. As always, our exam rooms and instruments will be sanitized between each visit and our waiting rooms will be sanitized regularly throughout the day. We are asking that all persons entering the offices wear face coverings. Additionally, please limit the number of persons presenting to the office; we ask that only one parent attends with a child and that additional siblings remain home.

As an extra precaution, we will not be seeing any sick visits or patients with fever or flu-like symptoms at present. We request that any allergy injection patients and/or patients with upcoming office visits reschedule if they have been in contact with someone with fever or flu-like symptoms.

If you suspect you may have a viral illness such as influenza or COVID-19 you should seek emergency care services or primary care services as we are unable to swab and test for these illnesses.

Finally, for all allergy injections patients: out of an abundance of caution and in order to limit your exposure to any viral vectors, we request that you limit close contact in waiting areas. At this time we will temporarily allow you to sit in your vehicle during your 30-minute wait. You will still be required to come in and have your arm read at 30 minutes or earlier if you are experiencing any reaction during your wait. We may also alter your shot schedule to limit your visits to the clinic temporarily.

Thank you for your understanding during these difficult times. These changes are temporary and we will keep you posted with any changes or additional information.