Since 1950
make a referral

Meet The Medical & Behavioral Health Team


Emily Brandt, M.D. FAAP

Dr. Emily Brandt joined the pediatric center team in August 2013. She completed a three year fellowship in developmental and behavioral pediatrics at the University of Iowa Children’s Hospital Center for Disabilities and Development. She received her medical degree at the Loma Linda University School of Medicine and completed her pediatric residency at the Loma Linda University Children’s Hospital. Dr. Brandt is board certified by The American Board of Pediatrics in general pediatrics and is board certified in Developmental-Behavioral Pediatrics.


Michelle Cahill Kimball, MSN,  CPNP-PC, Pmhs

Michelle is a certified pediatric nurse practitioner with more than a decade of experience.  She has additional board certification as a pediatric primary care mental health specialist which builds on the pediatric nurse practitioner role to provide advanced assessment, evaluation, diagnosis and treatment of common developmental, behavioral and mental health problems in children and adolescents.  Prior to joining Siskin Children’s Institute in early 2010 she worked in a private pediatric primary care office for 9 years.  Michelle received her baccalaureate degree from the University of Tennessee at Chattanooga and her Master’s degree from Emory University.  She serves as a preceptor for undergraduate nursing students and graduate nurse practitioner and physician assistant students for several local programs.


Megan McCullah, PA-C

Megan is a certified Physician Assistant who received her baccalaureate degree from East Tennessee State University in Biology and Psychology.  From there she obtained her Master’s in Physician Assistant Studies degree from Alderson-Broaddus College in Phillipe, West Virginia.  Her last year of training was spent at Wheeling Hospital in Wheeling, WV where her passion for pediatrics began.  Megan has five plus years in both primary care pediatrics and family practice.  Megan is thrilled to join Siskin Children’s Institute and begin practicing with the outstanding medical team and caring for families and children with special needs. 


Brandon Rodgers, Ph.D.

A Chattanooga native, Dr. Rodgers received his Ph.D. in human development with a specialty in marriage and family therapy from Virginia Tech. He is a licensed marital and family therapist by the Tennessee State Board of Professional Counselors, Marital and Family Therapists and Clinical Pastoral Therapists. In addition to being a certified psychological assistant by the Tennessee State Board of Examiners in Psychology, he is a nationally certified school psychologist. He has presented at numerous conferences and workshops around the country, including the American Association for Marriage and Family Therapy (AAMFT) Annual Conference. Dr. Rodgers currently provides a range of individual, family, and group behavioral health services at the Center for Developmental Pediatrics. He has previously taught courses at Virginia Tech, Appalachian State University, and Western Carolina University and is currently a Clinical Assistant Professor at the University of Tennessee - College of Medicine.


Margaret (Peggy) Wilkins, Ph.D.

With 20 years of clinical experience, Dr. Wilkins is a licensed clinical psychologist (HSP) by the Tennessee State Board of Examiners in Psychology. Dr. Wilkins received her Ph.D. in clinical psychology from Auburn University and is a clinical member of the American Psychological Association (APA). She currently supervises the psychological assessment services provided at the Center for Developmental Pediatrics.