Our Psychologists

Our Psychologists

Rebecca Cicha

Dr. Rebecca Cicha, PhD

Rehabilitation Psychologist

Dr. Cicha is a certified provider of cognitive processing therapy for Post-Traumatic Stress Disorder (PTSD). Her clinical interests include adjustment to disability and medical illness; PTSD; cognition and cognitive impairment; personality assessment; visual impairment; and chronic disease self-management.

Dr. Cicha is a graduate of the University of North Dakota, with initial clinical training in neuropsychological assessment, developmental disorders/disabilities and visual impairment.

Dr. Cicha holds an APA-accredited postdoctoral fellowship in rehabilitation psychology from the James A. Haley Veteran’s Hospital in Tampa, Florida with training emphasis in assessment and treatment of patients with spinal cord injury, amyotrophic lateral sclerosis (ALS), chronic pain, traumatic brain injury, stroke, orthopedic injuries, amputation, and chronic medical illness.


Dr. Gina Del Gardo, PhD

Clinical Psychologist

Dr. Gina Del Gardo holds a doctoral degree in clinical psychology. She leads the Spinal Cord Treatment Team at Siskin Hospital. She specializes in the evaluation and treatment of emotional responses to injury and illness and the factors that promote adjustment and rehabilitation. She has expertise in the treatment of chronic pain, post-traumatic stress disorder and biofeedback/muscular re-education. Her clinical interests include adjustment to medical illness; amputation; forensic psychology; and coping with traumatic injury.

Dr. Del Gardo obtained her doctorate at Nova Southeastern University. She interned at the VA Medical Center in North Chicago, which included tracks in neuropsychology, the Post Traumatic Stress Disorder Treatment Unit and Consultation to General Medicine and Surgery. She is a licensed clinical psychologist and included on The National Register of Health Service Providers in Psychology.


J Christopher YoungDr. J. Christopher Young, PhD, ABPP

Clinical Neuropsychologist

Dr. Young’s expertise lies in the diagnosis and treatment of cognitive and neuropsychiatric disorders across the lifespan. He specializes in the treatment of dementia, traumatic brain injury, stroke, movement disorders, and cognitive effects of chronic medical illness. He has extensive experience in the evaluation of a wide range of pediatric cognitive disorders including those resulting from traumatic brain injury, cancer and epilepsy. His clinical interests also include aviation neuropsychology and forensic neuropsychology.

Dr. Young is the co-director of Siskin Hospital’s Stroke Recovery Aftercare Program. He provides advanced expertise in the diagnosis and treatment of cognitive and neuropsychiatric disorders across the lifespan, including dementia, stroke, movement disorders, traumatic brain injury and cognitive effects of chronic medical illness. Additionally, he provides evaluation and consultation services for a wide range of medicolegal issues pertaining to neurocognitive dysfunction. Dr. Young sees patients who are in Siskin Hospital’s Inpatient and Outpatient Therapy Programs.


Dr Charles Schmittdiel

Dr. Charles Schmittdiel, PhD

Clinical Psychologist

Dr. Schmittdiel is a licensed psychologist/health service provider with expertise and certification in behavioral sleep medicine, including cognitive behavioral therapy for insomnia, an evidence-based treatment now recognized by the American Academy of Sleep Medicine and the American College of Physicians as a first-line treatment intervention for adults with chronic insomnia. Behavioral sleep medicine also includes working with individuals with other sleep disorders, such as patients struggling with CPAP use for sleep apnea, coping with narcolepsy and RLS, and managing parasomnias such as sleep walking. He also has extensive experience with cognitive behavioral therapy interventions for other behavioral conditions, including anxiety and coping with chronic pain.

Dr. Schmittdiel has also worked in the bariatric field for several years, including with two accredited bariatric surgical centers, as part of the interdisciplinary bariatric surgical process. He has more than 30 years of experience in the field of clinical psychology and is the only certified behavioral sleep medicine practitioner in the Chattanooga area. Dr. Schmittdiel obtained his doctorate from the University of Nebraska-Lincoln and completed his internship at the Baylor College of Medicine. He was originally Certified in Behavioral Sleep Medicine (CBSM) by the American Board of Sleep Medicine, and more recently achieved Diplomate status in Behavior Sleep Medicine (DBSM).  Dr. Schmittdiel is recognized by the National Register for Health Service Psychologists.

Dr. Rochelle Jones, PsyD

Clinical Neuropsychologist

Dr. Jones is a clinical psychologist with expertise in neuropsychology and neuroscience.

She obtained her doctorate in psychology from Loma Linda University in Loma Linda, California. She completed her two-year postdoctoral fellowship in Clinical Neuropsychology at VA Puget Sound Healthcare System, American Lake Division, which is an accredited program of the American Psychological Association.

Dr. Jones specializes in assessment and treatment of traumatic brain injury/concussion, stroke, dementia, movement disorder and other medical and neurological conditions that affect cognitive functioning. Additionally, Dr. Jones specializes in post-concussive recovery and rehabilitation psychology services for coping and adjustment to disability, using interventions such as motivational interviewing, cognitive-behavioral therapy, acceptance and commitment therapy, and cognitive remediation. At Siskin Hospital, she conducts neuropsychological and psychological evaluations, conducts cognitive rehabilitation therapy, and provides consultation services for inpatient and outpatient therapy programs.

Dr. Jones is a contributing author to two peer-reviewed journal articles. She has also made oral presentations and has presented numerous posters at professional conventions.


Please call 423.634.1746 for more information or to schedule an appointment with one of our psychologists.

Call to insist on Siskin 423.634.1200
or email