Keili Mistovich, MD, MPH, FAAP is a board-certified pediatrician, mom, and cancer survivor who has dedicated her career to helping families navigate childhood with clarity, confidence, and purpose. She is a practicing pediatrician at Zest Pediatrics of Beachwood, Chief Medical Officer and Co-Founder of Zest Pediatric Network, and an attending pediatrician at The Cleveland Clinic and Rainbow Babies and Children’s Hospital.

Education & Medical Training

Dr. Mistovich earned her medical degree and Master of Public Health from the University of Pittsburgh, followed by pediatric residency training at the internationally recognized Children’s Hospital of Pittsburgh.

She later completed fellowship training in pediatric integrative medicine, becoming one of the first physicians in Northeast Ohio formally trained to combine traditional medical science with nutrition, behavior, lifestyle medicine, and whole-child systems thinking.

A Perspective Shaped by Personal Experience

Her approach to medicine is shaped not only by training at some of the nation’s leading institutions, but also by her personal experiences as a patient facing serious illness, a wife, and a parent.

Dr. Mistovich gained a perspective few physicians fully understand: how it feels like to sit in on the exam table facing uncertainty, the real challenge of balancing professional responsibilities with the full-time job of being a parent, and how complex it can be to navigate traditional healthcare systems to build a team you can trust.

These experiences reshaped how she thinks about medicine: families truly need dependable guidance during the most important moments of life.

Building a New Model of Pediatric Care

Dr. K co-founded Northeast Ohio’s first direct pediatric care practice, and then Zest Pediatric Network, the nation’s first direct pediatric care network.

As the Chief Medical Officer of Zest, Dr. K leads a multi-state team of over a dozen pediatricians and innovative multidisciplinary clinical professionals, including lactation consultants, parent coaches, sleep training experts, pediatric psychologists, and nutrition experts.

This model focuses on caring for the whole child, integrating medical evidence, development, behavior, nutrition, and family dynamics into a coherent long-term plan to help parents raise and launch great kids.

Why Hey, Dr. K! Exists

While many parents do not have access to this kind of relationship-based care, every parent faces the same questions and anxieties.

Modern parenting often means navigating thousands of conflicting opinions online and trying to separate evidence from noise while making decisions that feel enormously important.

Having lived that experience herself, Dr. Mistovich founded Hey, Dr. K! to extend trusted pediatric guidance beyond the walls of her office.

Through Hey, Dr. K! courses and educational resources, she helps families expand their parenting knowledge, trust their instincts, reduce anxiety, and raise resilient, healthy children.

Mission
Every parent deserves access to trustworthy medical guidance.