Dr. Elaine T. Santos, M.D., F.A.A.P.


Dr. Santos is a board certified pediatrician and a Fellow of the American Academy of Pediatrics. She was born in Los Angeles, CA and raised in Scottsdale, AZ.  She graduated from the University of Southern California earning her Bachelor of Science degree in Psychobiology in 1992.  She then went to St. George’s University in Grenada, West Indies for medical school and graduated in 1997. 

Her training continued in the pediatric residency program at the State University of New York in Stony Brook, New York.  After completion of  her  training in 2000, Dr. Santos moved back to Phoenix to practice general pediatrics and worked in 2 private practices in the valley.  In 2006, she opened Angel Pediatrics with Dr. David  Yip.

Her interests include bikram yoga, running, and crossfit work-outs.  She loves to discover new restaurants and traveling abroad learning about different countries and cultures.

Who We Are


​At  Angel Pediatrics, we provide personal, friendly service in a fun and caring environment for children of all ages. All of our doctors are Board Certified Pediatricians and have worked in the medical industry for a number of years. Our services range from diagnosis, to health and fitness analysis. Whether your child is sick or needs to tips on how to stay healthy, we can help them.

Dr. David S. Yip, M.D., F.A.A.P.

Dr. Yip was born and raised in Southern California. He attended medical school at Saint Louis University in St. Louis, MO and graduated in 1998. He completed his pediatric residency in 2001 from the University of Texas Southwestern/Children's Medical Center of Dallas.

After moving to Arizona, Dr. Yip worked at Arrowhead Pediatrics from 2001-2005.

He lives in North Peoria with his wife and one cat. Dr. Yip's interests include horses, horse racing and ice hockey.

Meet the Pediatric Team

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Liz Rattle, Certified Physician Assistant

Liz is a Board Certified Physician Assistant. She has always had a love for helping others and working with children which lead to pursuing a career in medicine. She received her undergraduate degree in Bachelors of Science in Wisconsin before moving to Arizona to pursue PA school. Liz graduated from Midwestern University in Glendale in 2009 with a degree in Physician Assistant Studies and has been working in pediatrics ever since. She is passionate about helping children lead happy, healthy lives and working on how to overcome childhood obesity. 

Originally from Wisconsin, Liz is a huge sports fan, having played a variety of sports all her life. She also loves adventure, especially hiking and traveling. She currently lives in Glendale with her two labs and cat who keep her very busy. She also enjoys a good book, music and just spending time with family and friends.​