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Office Hours:
Monday: 8:30 am - 9:00 pm
Tuesday: 8:30 am - 9:00 pm
Wednesday: 8:30 am - 9:00 pm
Thursday: 8:30 am - 9:00 pm
Friday: 8:30 am - 5:00 pm
Some Saturdays: 8:30 am - 12:00 pm

Phone: 631-656-0472

1727 Veteran's Memorial Highway (Rt. 454), Suite 300
Islandia, NY 11749


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Long Island Behavioral Medicine, PC

About Us

Frank Dowling, MD

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Dr. Frank Dowling is a board certified psychiatrist and is a graduate of SUNY at Stony Brook School of Medicine and completed his residency in Psychiatry at University Hospital at Stony Brook where he has a faculty appointment as an Associate Professor of Clinical Psychiatry. Dr. Dowling is an active member in various professional organizations, including but not limited to the American Psychiatric Association, NY State Psychiatric Association, International Critical Incident Stress Foundation, AMA, and MSSNY. As a MSSNY member, Dr. Dowling served as Co-Chair of the Addiction and Psychiatric Medicine Committee, Vice Chair of the Emergency Preparedness Committee and is currently serving as Commissioner of Public Health and Science. Dr. Dowling has received several honors and professional recognitions such as the APA's Bruno Lima Award given for significant contributions to the care and understanding of victims of disaster. Dr. Dowling is the Medical Advisor to POPPA (Police Organization Providing Peer Assistance), a confidential, non-departmental voluntary assistance program for NYPD officers, the Medical Director for the Association for Mental Health and Wellness and is a consultant to the Stony Brook World Trade Center Health Program. He has a private practice in Islandia, NY, which specializes in the care of emergency responders, physicians and other healthcare professionals. He currently provides evaluations, individual treatment and group psychotherapy services for adolescents and adults aged 16 and older.

Rachna Sharma, MD

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Dr. Rachna Sharma is an experienced psychiatrist with board certifications in both General and Childhood and Adolescent Psychiatry. She completed her medical internship and adult psychiatry training at Stony Brook University Medical Center and her fellowship in Child and Adolescent Psychiatry at NSLIJHS/Albert Einstein College of Medicine at Long Island Jewish Medical Center. She also completed her psychodynamic psychotherapy training the NYU Psychoanalytical Institute. Dr. Sharma specializes in the diagnosis and treatment of mood disorders, anxiety disorders, PTSD and eating disorders. While she has extensive training and experience with prescribing medications, she also has extensive experience in providing individual psychotherapy. She also serves as a consultant to the Stony Brook World Trade Center Health Program. She is a partner at Long Island Behavioral Medicine, PC, a private practice in Islandia, New York. Dr. Sharma is also an active member of various professional organizations including the American Academy of Child and Adolescent Psychiatry, Suffolk County Medical Society, Medical Society of the State of New York, National Eating Disorder Association, and the International Association of Eating Disorders Professionals. Dr. Sharma provides school evaluations, individual evaluations and treatment for children and adolescents ages 5 and older and for adults through geriatric ages.

Marsha Alexander, DO

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Dr. Marsha Alexander is a board certified psychiatrist and board eligible Child and Adolescent psychiatrist. She obtained her medical degree from the New York College of Osteopathic Medicine where she received the Award for Excellence in Behavioral Medicine. She completed her General Psychiatry Residency at North Shore University Hospital at Manhasset/NYU School of Medicine and her fellowship in Child and Adolescent Psychiatry at NSLIJ HS/Albert Einstein College of Medicine at Long Island Jewish Medical Center. Dr. Alexander specializes in the diagnosis and treatment of PTSD, mood disorders, and anxiety disorders. She currently provides evaluations, psychopharmacological management, and individual therapy for adolescents and adults aged 16 and older.

Dr. Alexander is an attending psychiatrist at the Northport VA Medical Center and a Clinical Assistant Professor of Psychiatry at Stony Brook School of Medicine, where she teaches medical students, Physician Assistant Students, and Psychiatry Residents that rotate at the VA Medical Center. She also serves as a consultant to the Stony Brook World Trade Center Health Program.

Kathleen A. Bowen, NP

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Kathleen Bowen, NP is a board certified family psychiatric /mental health nurse practitioner (FPMHNP-BC), with prescriptive privileges. She graduated from Adelphi University, cum laude, with a BSN and earned her MS, NP from Stony Brook University, where she was awarded distinction for Overall Excellence in Psychiatric/Mental Health and inducted into the Sigma Theta Tau Honor Society.

Kathleen Bowen has prior experience working in the “trauma level 1” emergency room at North Shore Manhasset; inpatient, outpatient and emergency psychiatry while at Stony Brook University; and with adolescents at Sagamore Children’s Psychiatric Center.

In addition to her private practice, Kathleen Bowen is a consultant for Clubhouse of Suffolk, Inc. PROS program in Ronkonkoma and Stony Brook’s World Trade Center Medical Monitoring Program. She specializes in anxiety and adjustment disorders, PTSD and mood disorders such as depression, dysthymic and bipolar disorder. Because she is family certified, she has the ability to treat all ages across the lifespan.

Gabrielle Chiaramonte, PhD

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Gabrielle Rosa Chiaramonte, Ph.D., is a clinical psychologist specialized in the treatment of posttraumatic stress disorder (PTSD) other anxiety disorders and depression. Dr. Chiaramonte has training in Mindfulness Based Stress Reduction (MBSR) and has expertise in women's issues and the treatment of psychological symptoms in individuals with medical illnesses such as heart disease, cancer, and auto-immune disorders. Dr. Chiaramonte received her Bachelor's from Fordham University and her Doctorate from Stony Brook University. She completed a one year Clinical Internship at the Payne Whitney Clinic of Weill Cornell Medical College and completed a four year Postdoctoral Fellowship at the Program for Anxiety and Traumatic Stress Studies (PATSS) in the Department of Psychiatry at Weill Cornell Medical College / New York Presbyterian Hospital where she specialized in the treatment of PTSD. She also completed training in Cognitive Behavioral Therapy with Prolonged Exposure for the treatment of PTSD at the University of Pennsylvania's Center for the Treatment and Study of Anxiety. Dr. Chiaramonte serves as Instructor of Psychology in Psychiatry at Weill Cornell Medical College / New York Presbyterian Hospital (NYPH) where she supervises trainees, works with families who have children hospitalized at the NYPH Burn Center, and co-leads workshops on Managing Chronic Illness and Injury. Dr. Chiaramonte has received numerous honors and awards including the Stony Brook University President's Award to a Distinguished Doctoral Student and the Weill Cornell Medical College Faculty Council Award for Excellence in Research. Dr. Chiaramonte is a member of the New York Cognitive Behavioral Association, the Anxiety and Depression Association of America, the Association for Behavioral and Cognitive Therapies, the American Psychological Association, and the American Heart Association. Services she will provide include individual and group psychotherapy including Mindfulness Based Stress Reduction (MBSR).

Jenny Hwang, PhD

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Dr. Jenny Hwang is a licensed clinical psychologist specializing in the treatment of trauma, substance abuse, anxiety, depression, and borderline personality disorder. She graduated from Carnegie Mellon University with a Bachelor's in History and obtained her Ph.D. in Clinical Psychology from Duquesne University in Pittsburgh, Pennsylvania. After working at the University of Pittsburgh Medical Center as a research psychologist, she joined the staff at Stony Brook University where she worked for eight years to develop and lead community-level mental health prevention and intervention initiatives for the university population of over 23,000 students.

With extensive training and supervision in psychodynamic psychotherapy, completion of intensive trainings in Cognitive Behavioral Therapy (CBT) at the Beck Institute and Dialectical Behavioral Therapy (DBT) from Behavioral Tech, as well as clinical experience with first responders, military service members, and physicians, Dr. Hwang brings a broad evidence-based approach to treatment with the goal of helping patients feel relief as well as have a greater sense of efficacy in their lives.

Dr. Hwang provides individual and group psychotherapy services for adolescents (15+ years old) and adults. She is a recognized provider by the World Trade Center Health Program and Committee on Physician Health. She is intensively trained in Dialectical Behavioral Therapy, offering both individual and skills group services as part of a comprehensive DBT program at LIBM and its sister practice - Long Island Mind and Body.

Linda McLehose, LCSW-R

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Linda McLehose is a Licensed Clinical Social Worker who specializes in the treatment of trauma, anxiety, and mood disorders. Linda graduated from Queens College with a BA in Psychology, and earned her Master's Degree in Social Work from SUNY Stony Brook, and is currently a member of the National Association of Social Workers.

Upon graduation from Stony Brook University's School of Social Welfare, Linda joined the staff of the Association of Mental Health and Wellness, formerly known as Clubhouse of Suffolk, where she was employed for close to 20 years. During her last position as Director of Clinical Services, Linda was actively involved in program development and oversight for two mental health clinics for the agency's PROS programs, and provided clinical supervision of therapists and program directors.

Linda is familiar with the interconnectedness of medical and mental health issues and believes in a whole person approach to treatment, incorporating elements of cognitive behavioral therapy and mindfulness based techniques into her practice. She has also attended Intensive Training in Dialectical Behavior Therapy provided by The Linehan Institute, and is part of a DBT consultation team. Linda is also a recognized provider for the WTCHP monitoring program.

Linda currently offers evaluations, individual, couples and group psychotherapy services for adolescents aged 16 and older through geriatric ages.

Leah Schneider, LMSW

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Leah Schneider is a Licensed Master Social Worker (LMSW), who graduated from New York University's Silver School of Social Work. There, Leah participated in additional training in Addiction Treatment. She has experience in treating a range of mental health issues including severe mental illness, anxiety and depression, symptoms related to trauma, problems in relationships and low self-esteem.

Leah's approach to treatment draws from a broad range of methods but most of all is tailored to the unique needs of each client. She is a yoga instructor and incorporates some elements of this practice where appropriate such as mindfulness and breathing techniques. Leah works to maintain an effective and positive relationship with clients. She prioritizes what encourages healing the most, a healthy, working partnership that engenders trust, mutual respect and a sense of hope.

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Long Island Behavioral Medicine, PC

1727 Veteran's Memorial Highway (Rt. 454), Suite 300 | Islandia, NY 11749
631-656-0472 • Fax: 631-656-0634

Located in Western Suffolk County. Serving TMS on Long Island NY, TMS Suffolk County NY, TMS Western Suffolk NY, TMS North Shore NY, TMS South Shore NY, TMS Islandia, TMS Smithtown, TMS Hauppauge