Dr. Kristi Vaughan is a functional medicine specialist practicing in Costa Mesa, CA. She is affiliated with Hoag Hospital Newport Beach and Huntington Beach Hospital. Dr. Vaughan specializes in Functional Medicine, utilizing specialty testing to determine the root cause of health issues. She was awarded the 2016 Award of Excellence in Holistic Medicine and is the author of Thyroid Track. Dr. Vaughan is a speaker and authority on functional integrative medicine.