Who We Are
Who We Are
Matthew Prowler, MD and John Williams, MD, founders of Main Line Smart™, are joined by a team of psychologists to provide comprehensive and evidence-based assessments.
Board-certified child, adolescent and adult psychiatrists, Drs. Prowler and Williams bring years of experience in diagnosing and treating neurocognitive disorders and incorporating the analysis of psychoeducational and neuropsychological evaluations into plans of practice.
Matthew Prowler, MD
Dr. Matthew Prowler, co-founder of Main Line Smart™, LLC, attended Princeton University and Jefferson (Sidney Kimmel) Medical College, completing an adult psychiatry residency at the Hospital of the University of Pennsylvania, and a child and adolescent psychiatry fellowship at the Children’s Hospital of Philadelphia. He is a Clinical Assistant Professor in the Department of Psychiatry at the University of Pennsylvania. Dr. Prowler has published numerous journal articles relating to psychopharmacology and has been an online contributor to The Philadelphia Inquirer and The Washington Post. He has been selected by Castle Connolly as a 2024 Top Doc in Philadelphia in Child Psychiatry.
Dr. Prowler is board certified in general psychiatry and child & adolescent psychiatry, and certified in Structural Family Therapy.
He enjoys triathlon, music, ice cream and spending time with his wife and two children.
John Williams, MD
Dr. John Williams, co-founder of Main Line Smart™, LLC, attended Harvard College and the University of Pennsylvania School of Medicine, completing an adult psychiatry residency at the Hospital of the University of Pennsylvania, and a child and adolescent psychiatry fellowship at the Children’s Hospital of Philadelphia. He was a Clinical Assistant Professor in the Department of Psychiatry at the University of Pennsylvania.
Dr. Williams is board certified in general psychiatry and child & adolescent psychiatry, and is a past president of the Academy of Cognitive Therapy, an international board certifying mental health clinicians in cognitive behavioral therapy. He is also a member of the Board of Pardons of the Commonwealth of Pennsylvania and the author of Indefinite Postponement, A Case Study of Adolescent Suicidality (2018).
Married with three children, he enjoys family outings, running, and journal reading in his spare time.