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

Caitlin Suriano

PA-C, A.T. Still University

Olivia Goff

PA-C, Northern Arizona University

Samar El-Sharkawy

PA-C Arizona State University

Rachel Schueller

PA-C University of Wisconsin


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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