Our Physicians are Board Certified by the American Board of Allergy and Immunology. All of our physician assistants are board certified. Our offices are conveniently located throughout the “Valley of the Sun” in Phoenix, North Scottsdale, Chandler, East Mesa and San Tan Valley. Our Physicians have won many awards, including multiple “Top Docs” awards from Phoenix Magazine.

Physicians

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Dr. Robert W. Hellmers
MD: University of California, Irvine
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Dr. Darrell W. Wong
MD: FUHS/The Chicago Medical School
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Dr. Duane W. Wong
MD:Northwestern University's Feinberg School of Medicine
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Dr. Laine E. Keahey
MD: University of Manitoba
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Dr. Radha G. Rishi
MD: University of Tennessee
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Dr. Rahul S. Rishi
DO: Adult and Pediatric Allergy Immunology

Physicians' Assistants

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Marissa Ciaramitaro
Masters of Clinical Medical Science
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Rachael M. Stillwagon, PA-C
PA-C: FUHS/The Chicago Medical School
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Kerry Berghoff, FNP-C
FNP-C: Bachelor's in Biology Summa Cum Laude

Emeritus

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Dr. Kenneth A. Tollackson
M.D.: BS - Harvard University