Welcome to Arizona Allergy Associates

Who we are

Arizona Allergy Associates is a premier provider of healthcare services, delivered with compassion for patients and their families; with respect for employees, physicians, and other healthcare professionals; with accountability for our fiscal and ethical performance; and with responsibility to the community we serve.

More Info

Our Mission

Arizona Allergy Associates is a premier provider of healthcare services, delivered with compassion for patients and their families; with respect...

Learn More

Our Vision

Arizona Allergy Associates will be the healthcare provider of choice to our patients, employees, physicians, and other health professionals by...

Learn More

Contact Info

Arizona Allergy Associates have a number of locations throughout the valley. Choose the one that is most convenient for you. Call us today!

Learn More


Our Physicians are Board Certified by the American Board of Allergy and Immunology. All of our physician assistants are board certified. Our...

Learn More

Dr. Duane Wong is my favorite doctor in the world. I have known him since I was a little girl, when he was treating my mom's asthma and allergies. As I got older and my allergies got worse, I decided to go to see him for myself. He has been treating me for almost a year now using immunotherapy shots. I can tell a noticeable difference in the severity of my allergies! The staff is friendly and professional. I'm grateful for Dr. Wong's help.

Ana G.

Doctor Rahul Rishi is a blessing to have in our community. He has great bedside manner, is kind and cares about you as if you were one of his own family. He is very knowledgable and one thing I noticed that lifts his spirit is when his patients get better!!
He is also one of the most honest and ethical doctors I have seen and he actually tells you if you do not need a test and it would be only extra cost out of your pocket. He is the allergist I want for the people I care about.

Somayeh D.

The check in process was very fast, a little too fast, because i didnt have time to fill out the paperwork before she called me back up to pay my copay, and before i could pay they were calling me to the back! The doctor was Dr Rishi, she was great! Although i came in a "blah" mood she maintained her smile and professionalism and was very thorough she explained things very well and didnt rush! Very good doctor

Dawn M.


How we can help
  • Breathing (Lung Function) Tests

  • Allergy Consultations
  • Allergy Skin Tests
  • Multiple locations
  • Blood Tests
  • Patient portal

Providers Physicians

Meet Our Staff
Rachael M. Stillwagon, PA-C
PA-C: FUHS/The Chicago Medical School
Kerry Berghoff, FNP-C
FNP-C: Bachelor's in Biology Summa Cum Laude
Dr. Rahul S. Rishi
DO: Adult and Pediatric Allergy Immunology
Dr. Radha G. Rishi
MD: University of Tennessee
Dr. Robert W. Hellmers
MD: University of California, Irvine
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