Brain Injury Rehabilitation Specialists
Page Menu

Neuropsychology and Counseling

On With Life's Neuropsychologists and Clinical Counselor assesses strengths and needs in the areas of cognition, behavior management, mental health, substance abuse and sexuality, providing information and guidance for individual rehabilitation plans. 


Our Clinical Counselor and Neuropsychologists also counsel our persons served and their families throughout the rehabilitation process. They work closely with our Social Workers and consulting Psychiatrist to minimize emotional barriers. 


Learn more about On With Life's Neuropsychological Services, including evaluation and consultation. 



Dr. Jerome Greenfield

Dr. Greenfield is our consulting psychiatrist and works closely with the On With Life team to evaluate experiences and mood states to optimize rehabilitation outcomes. Dr. Greenfield received his medical degree from the University of Iowa Carver College of Medicine and has been in practice for more than 20 years. 

Dr. David Demarest

Dr. Demarest is an Iowa- and Nebraska-licensed psychologist with more than 25 years of extensive experience in the rehabilitation and neuropsychology field. He completed his doctoral degree from West Virginia University and completed a specialty post-doctoral fellowship in neuropsychology and rehabilitation at the University of Missouri Medical School and Rusk Rehabilitation Center.

Dr. Allison Logemann

Dr. Allison Logemann joined the On With Life staff as a neuropsychologist in 2018.  She has experience in rehabilitation and academic/medical settings and has worked with various populations such neurodegenerative diseases, TBI/concussion, stroke, ADHD, learning disabilities, presurgical evaluations for epilepsy, tumor resection, bariatric and spinal cord stimulator. She also has training in psychotherapy and working with individuals with chronic pain.