Meet Our Pediatric Team
All professionals at Gilbert Pediatrics maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field.
Our Physicians
Board-certified pediatricians dedicated to your child's health and well-being
Lafe Carroll, DO FAAP
Dr. Lafe Carroll is a native Arizonan, growing up in Mesa. He graduated from Mesa High and went on to MCC briefly before going to Colombia for two years on a mission for the Church of Jesus Christ of Latter Day Saints. It is here he became fluent in Spanish and continues to use it in his practice.
He then graduated from Brigham Young University with a degree in Family Sciences. He attended Medical School at Kirksville College of Osteopathic Medicine in Kirksville, Missouri. After graduating in 2002, he completed a pediatric Residency at St. Joseph's Hospital in Phoenix, Arizona, where he was awarded "Resident of the Year" for his graduating class.
He has been practicing with Gilbert Pediatrics since 2005. He is board Certified in Pediatrics and a Fellow of the American Academy of Pediatrics. In 2010, Dr. Carroll was chosen as one of Arizona's "Top Docs" for Pediatrics in the Phoenix Magazine.
Dr. Carroll is married to his high school sweetheart and they have 6 children. He is actively involved in his church and the scouting program. He enjoys reading and spending time with his family.
Tim Jacks, DO FAAP
Originally from Elmhurst, Illinois, Dr. Jacks has lived in the greater Phoenix area since 1988. He was a home school graduate before moving on to Arizona State University and finally medical school at A.T. Still University.
Dr. Jacks is board certified by the American Board of Pediatrics and a fellow of the American Academy of Pediatrics. As a passionate vaccine advocate, Dr. Jacks works with local and national advocacy groups to promote vaccination and educate the community about vaccine safety.
When not working, Dr. Jacks enjoys spending time with his family, running, playing with computers, exploring the great outdoors, and being involved at Rock Point Church.
Xin Tan, MD FAAP
Dr. Tan was born and raised in southern China. She received her MD from Hebei Medical University in 2004 and pursued her PhD in Surgery/Oncology at the 1st affiliated Hospital of Sun Yat-sen University.
She completed her pediatric residency in the United States and is board certified in Pediatrics and a Fellow of the American Academy of Pediatrics.
Dr. Tan has 2 children, Shirley and Jeremy. In her free time she enjoys playing basketball, hiking with family and road trips to National Parks.
Brett Holdaway, DO
Dr. Brett Holdaway grew up in a family of 13 kids in Payson, UT. After high school, he spent two years serving a mission for The Church of Jesus Christ of Latter-day Saints in Taiwan.
After finishing his undergraduate studies at Brigham Young University, he attended medical school at Rocky Vista University College of Osteopathic Medicine and completed his pediatric residency at Phoenix Children's Hospital.
Dr. Holdaway and his wife Becky have two kids that keep them busy. In his spare time, Dr. Holdaway enjoys spending time with his family, going on hikes, running, and weekly dates with his wife.
Brad Guthrie, MD FAAP
Dr. Guthrie grew up in Mesa, AZ. If you are wondering because of the last name, he and the former Dr. Dale Guthrie are first cousins once removed. Like many of you, Dr. Dale Guthrie was his doctor growing up.
He obtained his Medical Degree from University of Arizona School of Medicine in Tucson, AZ and completed Pediatric Residency in Memphis, TN at LeBonheur Children's Hospital and University of Tennessee.
Despite that, he, his wife, and his 4 kids are excited to be back in Arizona, close to family and friends, and excited to be part of this practice.
Our Nurse Practitioners
Experienced pediatric nurse practitioners providing exceptional care
Deborah Howard, RN MS PNP
Pediatric Nurse Practitioner
Deborah was born and raised in Arizona. She received her Bachelor of Science in Nursing from Northern Arizona University in 1988. She trained at St. Joseph's Hospital and Medical Center/Children's Health Center.
She has extensive experience in pediatric care and is passionate about providing comprehensive healthcare to children of all ages.
Brittany Kunz, DNP CPNP-PC
Pediatric Nurse Practitioner
Brittany Kunz was born and raised in Mesa, Arizona. She's always had a passion for learning and probably won't stop educating herself. Even though she is a crossfit, marathon-running enthusiast, she found time to raise 5 kids while pursuing her education.
She attended ASU, got her Doctorate in Nursing, and is a Certified Nurse Practitioner. She is passionate about helping children reach their full potential and supporting families through their healthcare journey.
Lynn Bevans, DNP CPNP-PC
Pediatric Nurse Practitioner
Lynn Bevans is excited to belong to Gilbert Pediatrics! She is originally from Alberta, Canada, where she received her RN license in 1989. She has lived in Gilbert, Arizona since 1997, and she has worked in various pediatric settings throughout her career.
Lynn is married and has two adult children. Her passions include exercise, baking, reading, and traveling.
Ready to Meet Our Team?
Schedule an appointment today and experience the compassionate care our team provides.