Chandler Office Providers

We currently have five providers practicing out of our Chandler office. Please feel free to browse the bios of each of our providers below.

Angela Wong, M.D., F.A.A.P.

Hello, I'm Angela Wong. I was raised in Honolulu, Hawaii and received both my undergraduate and medical degree from Creighton University in Omaha, Nebraska. I completed my residency training at the Phoenix Children's Hospital/Maricopa Medical Center and have been practicing pediatrics since 1990. I'm also certified by the American Board of Pediatrics. I'm married and have 2 sons. I enjoy traveling, fine dining, watching the Food Channel and shopping on the Internet. I'm also an avid Suns fan-go Suns!

Susan Chung, M.D., F.A.A.P.

Welcome to Mesa Pediatrics!  My name is Susan Sohn Chung and I am originally from MIchigan.  I attended Stanford University where I graduated with a Bachelor of Science degree in Biological Sciences in 1993.  After finishing my undergraduate studies, I attended medical school at the University of California San Francisco where I also finished my internship and residency in Pediatrics.  After graduating from residency, I became board certified by the American Board of Pediatrics in 2000 and have been practicing as a pediatrician ever since. Immediately after residency, I stayed on at UCSF as clinical faculty before my family decided to relocate to Arizona allowing me the opportunity to join Mesa Pediatrics.  I am passionate about pediatrics, especially in the areas of newborn care, allergy, and asthma.  In my free time, I am blessed to be able to share my life with my loving and supportive husband of over 20 years, our wonderful son, and faithful little Yorkshire terrier. 


Angela Zankich, M.D., F.A.A.P. (or Dr. Z for short)

I am originally from northern California and will forever be an SF Giants and Niners fan. I received both my undergraduate and medical degrees from the University of California, Davis. After medical school, I moved to Arizona for residency. I completed a residency at Phoenix Children's Hospital/Maricopa Medical Center in 2007 and have worked with Mesa Pediatrics ever since. I'm certified by the American Board of Pediatrics. I am married with two kids ( a son and a daughter). My family enjoys traveling and being outdoors hiking, running, and swimming.  I also enjoy reading in my spare time.


Molly Haley M.D., F.A.A.P.

Hi! My name is Molly Haley and I completed my undergraduate and medical degrees at The University of Arizona in Tucson. I graduated in June of 2007 from Phoenix Children's Hospital/Maricopa Medical Center combined pediatric residency training program. I'm certified by the American Board of Pediatrics. I am married with two active boys and one adorable daughter as well as a Golden Retriever named Macy and a German Shepard named Fergie. My hobbies include reading, traveling to visit family, and chasing after my kids.  I look forward to meeting you and working with your family soon!


Ashley Collins, PA-C

My name is Ashley Collins and I am an Arizona native. I received my Bachelor's degree in Physiology from the University of Arizona. Shortly after graduation, I moved to Denver to attend the University of Colorado Child Health Associate/Physician Assistant Program. After earning my Master's of Science degree in Physician Assistant Studies, I practiced in family medicine for a few years. While my husband and I loved our Denver adventures, we decided to move back home to Arizona where I was able to pursue my passion in pediatrics. I am certified by the National Commission of Physician Assistants. I am happily married to my high school sweetheart, who is a Physical Therapist.  Together we have a son and dog who like to get into trouble together.  I love spending time with my family and friends, traveling, cooking, and cheering on the Arizona WILDCATS! I look forward to meeting you and your child soon!