Suffolk Office Phone: 631-676-1962
Nassau Office Phone: 516-686-9554

Heather Henkell, PhD     C.V.

Dr. Henkell completed her Ph.D. in Clinical Neuropsychology in September 2013. Her dissertation examined the cognitive and neural processes underlying factual and perceptual based relational judgments. She completed an APA-accredited internship at The Colorado Mental Health Institute at Pueblo (CMHIP), completing rotations in neuropsychology, social-learning program, and on the locked adolescent unit.

Brittany Bascetta, PhD  C.V.

Dr. Bascetta completed her Ph.D. in Clinical Neuropsychology through the CUNY Graduate Center in 2017. Her dissertation examined the cognitive deficits associated with hippocampal NMDAR autoantibodies in lupus patients. During graduate school, she completed practicum training at Memorial Sloan Kettering Cancer Center, Columbia University Medical Center's Comprehensive Epilepsy Center, and the Weill Cornell Medical College/New York Presbyterian, Westchester Division. She completed an APA-accredited internship in the neuropsychology service at the Henry Ford Health System's hospital in Detroit. During her internship year, she additionally completed a rotation in the Normal Pressure Hydrocephalus clinic as well as Health Psychology rotations in the Cardiology and Trauma Surgery units.  She completed her post-doctoral fellowship at LINS.  She has performed diagnostic assessments with children and adults in the context of developmental disorders, ADHD, psychiatric illness, concussion/traumatic brain injury, oncology, autoimmune disorders, cardiovascular disease and neurologic disease.

Brian K. Lebowitz, PhD ABPP-CN    C.V.

Dr. Lebowitz completed a neuropsychology fellowship at Harvard Medical School.  He has published research in peer reviewed journals in the areas of concussion and mild traumatic brain injury, moderate/severe brain injury, psychiatric and psychological factors associated with brain injury, and psychiatric illness.

Amber Sousa, PhD

Dr. Sousa completed her Ph.D. in 2013. Her dissertation focused on saccadic eye movement rate during memory tasks in older adults and adults with memory impairments. Her internship and post-doctoral work focused on clinical neuropsychological assessment of adult and geriatric patients. While in graduate training, Dr. Sousa completed practicum training at Stony Brook University Medical Center, Mt. Sinai Hospital, Columbia Presbyterian Medical Center, and New York Hospital.  She has performed diagnostic assessments with children and adults in the context of learning disorders, ADHD, psychiatric illness, traumatic brain injury, and neurologic disease.  She currently works at the Feinstein Institute for Medical Research in Alzheimer's Disease research and focuses on the assessment, diagnosis, and treatment of neurodegenerative disorders.

Richard Karelis, LCSW

Richard Karelis is a licensed clinical social worker certified by NY Sate to treat injured workers and accident victims under the Workers’Compensation Law. He provides psychotherapy services to treat symptoms that often arise from injuries following a motor vehicle or work related accident. In addition to chronic pain and physical problems from the trauma, there are likely to be mood complications involving anxiety and depression, cognitive difficulties including memory loss and attention and processing issues, social withdrawal, despair, and post traumatic stress. Therapy helps to normalize symptoms and provide a safe space for the ventilation of feelings that have been bottled up from the trauma. It can also aid in developing the coping skills necessary to adapt to changes following a traumatic injury, and provide education on integrating the mental and physical components of recovery. Richard uses a combination of CBT, trauma resolution, and mindfulness techniques to help restore the person back to a healthy and meaningful life.


Long Island Neuropsychological Services, PLLC
Suffolk Office
1050 Hallock Avenue #1
Port Jefferson Station NY 11776

Phone: 631-676-1962

Nassau Office
1165 Northern Blvd. Suite 301
Manhasset, NY 11030

Phone: 516-686-9554