About Us

Dr. Mark Hammerly, Ph.D.

He graduated from Ohio University in 1996 with a Bachelor’s in Psychology and from University of Dayton in 1999 with a Master’s in Clinical Psychology.  He received his Ph.D. in Psychology from Miami University in 2004 with a focus on rehabilitation of individuals with acquired or congenital neurological and developmental brain dysfunction.  He has over 20 years of experience working with children and adults providing psychological evaluations, diagnosis, and treatment recommendations.

Mary-Ellen Fleming, MSW, LISW

Mary-Ellen Fleming received her Master’s in Social Work from The Ohio State University in 2003 and has been a Licensed Social Worker in the State of Ohio since 2003.  She received her Bachelor’s in Psychology from Otterbein University, Westerville, Ohio in 1999.  She began working as an ABA Therapist for several families in Central Ohio in 2002 before joining Dr. Hammerly and Associates, Inc. as Dr. Mark Hammerly’s ABA Consultant in 2005.  Mary-Ellen oversees in-home ABA Therapy implementation, behavior training, social skills group, vocational skills training, and provides school consultations on behalf of Dr. Mark Hammerly.

Dr. Lindsay Fletcher

Dr. Lindsay Fletcher graduated from The Ohio State University in 2011 with a PhD in School Psychology and she completed her post-doctoral studies in Autism Spectrum Disorder.  She has been working with children with Autism since 2005, and she has worked in several different school settings as a school psychologist.  Dr. Lindsay Fletcher works with teenagers 15 years old and older to help them learn the vocational skills and independent living skills necessary to successfully transition into young adulthood. She can perform psychological evaluations, diagnosis, and treatment recommendations for teens 15 years old and older.