Meet Our Providers
Surprise Pediatrics is comprised of physicians and physician assistants who are dedicated to the care of your children. Please take a moment to review their profiles below and, if you have any questions, do not hesitate to call us at 623-876-9983.

Dr. Nicholas Pham, M.D.
Dr. Nicholas Pham | Pediatric Physician

I received my baccalaureate and medical degree from the University of Kansas in 1997. Rock Chalk Jayhawks!!! I completed my residency at St. Joseph's Medical Center here in Phoenix in 2000. I am a Board Certified Pediatrician and a Fellow of the American Academy of Pediatrics. I have been practicing pediatrics in Surprise, AZ since 2003.

As a pediatrician, I feel that it is my job to give parents medical advice on care for their child's development and physical well-being. Ultimately, I believe it is the parent's choice to follow my advice. Occasionally, I am reminded that doctors "practice" medicine because I will not always have the answers, but I am dedicated to learning through reading journals, continuing education seminars and correspondence with my colleagues.

I married my high school sweetheart and have 2 wonderful children, Ben and Emme. They are my pride and joy. Ben always has a huge smile on his face and Emme is full of sass.

Tiffany R. Anderson, PA
Tiffany R. Anderson, PA | Physician Assistant

Hi! My name is Tiffany Anderson. I was born and raised in Ohio. I knew from a young age that I wanted to work in Pediatric Medicine. I attended Bowling Green State University and graduated with a Bachelor’s degree in Applied Health Sciences.

Before moving to Arizona, to further my education I attended Midwestern University in Glendale, Arizona, and graduated in 2009 with a Masters of Medical Science in Physician Assistant Studies. I was lucky enough to have additional pediatric rotations during my clinical year and this confirmed that Pediatrics was where I was meant to be. When I am not at work I am with my son, Nathaniel. Whether we are reading books at home or going to the park to play I make sure to make the most of the time I have with him. In my spare time, I enjoy swimming, baking, and although I live in Arizona now, I am still a Cleveland sports fan at heart and take any chance I get to watch a game.

Mariah Cholley PA-C
Mariah Cholley, PA-C | Physician Assistant

Hi! My name is Mariah Cholley and I grew up in Phoenix, AZ. I am a proud alumna of Northern Arizona University, where I received both my undergraduate degree in Biomedical Sciences, followed by my master’s degree in Physician Assistant Studies. Prior to this, I actually attended and graduated from a high school right here in Surprise, AZ!

I have always had a strong interest to work in the field of pediatrics and truly enjoy getting to know not only the child but their families as well. When I am not working, I enjoy spending time with my husband, our family, and close friends. I am also a huge “foodie” and love to explore new places whenever I can.

I am so excited to be a part of this amazing group at Surprise Pediatrics and look forward to meeting you soon!
Call for an appointment today: 623-876-9983