Our Staff

Jonathan Sinowitz, Psy.D. is a licensed psychologist trained at New York University, where he obtained his Doctoral degree in Clinical and Child/School Psychology. Since obtaining his doctorate in 1996, Dr. Sinowitz has developed specialties working with forensic matters, child and adolescent evaluation and treatment, and applied psychological testing. Dr. Sinowitz has been conducting comprehensive psychological, neuropsychological, personality and vocational evaluations for the past thirteen years, applied to educational, forensic and corporate environments. He is a qualified expert witness and is called upon for expert testimony routinely.

Prior to developing his private practice, Dr. Sinowitz was responsible for establishing the court assessment program at Family Service of Westchester, where he also served as the clinic director and chief psychologist.

Dr. Sinowitz has been practicing independently for more than ten years. He consults with private and public schools, corporations and government agencies regularly and he maintains a full-time treatment and evaluation practice with children, adolescents and adults. Dr. Sinowitz founded Diagnostics in 2008, as an expansion of his practice.

Allison Bell, Psy.D. holds a doctoral degree in Clinical Psychology from Yeshiva University. She also holds a Master's degree in dance/movement therapy from Hunter College. She has been in private practice in Westchester County, N.Y. since 1987, and is specialty-trained in child psychology, neuropsychological evaluation of children and marital therapy. For the past eleven years, Dr. Bell has performed forensic evaluations in both Family and Supreme Courts in the southern New York State region. Dr. Bell is certified to practice EMDR, a specific technique for use with victims of trauma, and performed critical incident stress debriefings for victims of 9/11 in and around New York City. In her 20+ years of clinical practice, Dr. Bell has lectured widely throughout Westchester County, has made television and radio appearances, and has advocated for children with special educational needs.

Currently, Dr. Bell is a member of three interdisciplinary teams practicing Collaborative Divorce, in Dutchess, Westchester and Putnam Counties. She has completed the Program for Senior Executives at the Harvard Program on Negotiation and is a trained Mediator. She is a founding member of the New York Chapter of the Association of Family and Conciliation Courts, and a charter member of the new Forensic Division of the New York State Psychological Association. Dr. Bell has made television appearances on local cable access networks, and appeared on the CBS Early Show in August of 2007. 

David Gerard, J.D., Ph.D. is licensed as a clinical psychologist and attorney.  He received his Doctoral degree in Clinical Psychology from Fairleigh Dickinson University and subsequently completed a program in Psychoanalytic Psychotherapy from the Manhattan Institute for Psychoanalysis.  Dr. Gerard obtained his law degree from Hofstra University School of Law and his Bachelor of Arts in Psychology from the University of Pennsylvania.

Utilizing individual, group and family therapy modalities, Dr. Gerard's approach to conducing psychotherapy is to flexibly incorporate empirically-supported treatments into an interpersonal/relational model in order to help his clients deal effectively with personality issues and emotional and behavioral adjustment.

Dr. Gerard spends a good deal of his professional time conducting intelligence, neuropsychological, personality, and psycho-diagnostic evaluations of adults, adolescents and children in psychiatric and forensic settings.

Previously, Dr. Gerard has worked for the Division of Family Guidance in Bergen County, New Jersey where he treated and evaluated adolescents and their families.  David completed his internship at the Fifth Avenue Center for Counseling and Psychotherapy in New York, New York, and a year-long intensive externship conducting psycho-diagnostic evaluations at Four Winds Hospital in Katonah, New York.

Stephanie W. Rosen, Psy.D. is a licensed clinical psychologist. She received her Doctorate of Psychology at The George Washington University in Washington, DC.  Dr. Rosen graduated with her Bachelors of Art in Psychology with High Distinction from the University of Michigan and was a recipient of the Phi Beta Kappa Award.

Dr. Rosen completed her psychology internship at Maimonides Medical Center and postdoctoral work at Interfaith Medical Center in Brooklyn, NY.  Her clinical experience spans in-patient hospital, community mental health, school, and nursing home/rehabilitation work.

Dr. Rosen treats patients with a wide range of clinical symptoms and life issues.  Her treatment approach incorporates interpersonal, dynamic and cognitive behavioral treatment modalities, depending on the presentation and therapeutic goals of the individual in question. Dr. Rosen is dedicated to providing her patients with a high level of care, empathy, and understanding.

Angela M. Reiter, Psy.D. is a licensed clinical psychologist. She received her Doctorate of Psychology at The Florida School of Professional Psychology in Tampa, FL.  She completed her dissertation on The Effects of Deployment to Active Combat Zones on the Children of Military Personnel.  Dr. Reiter graduated with her Bachelors of Science in Psychology with Highest Honors from the University of Florida.  She completed her Senior Thesis on Parent Locus of Control and Discipline Practices in Head Start Families. 

Dr. Reiter completed her psychology internship at MercyFirst Residential Treatment Facility in Syosset, NY and postdoctoral work at Coney Island Hospital in Brooklyn, NY.  She has worked with a wide range of populations and ages from children, adolescents, adults and the elderly.  Settings she has worked in include residential treatment centers, home-based services, outpatient medical offices, in-patient hospitals, and nursing homes.

Dr. Reiter’s treatment approach utilizes interpersonal, dynamic, solution-focused and cognitive behavioral treatments.  Her primary focus has been treating individuals with mood or anxiety disorders, behavioral disorders, and psychotic disorders, as well as dementia.  Another focus of Dr. Reiter’s is treating individuals with chronic pain or PTSD as a result of a worker’s compensation injury or assault.

Sarah Stern, Ph.D. is a doctoral level psychologist who conducts psychotherapy and evaluations at Diagnostics, LLP.  She has experience conducting psychoeducational, psychological and OMRDD evaluations with children and adults. Dr. Stern believes the foundation for successful therapy lies in the development and maintenance of an authentic, open and empathic therapeutic relationship. It is through this client-therapist relationship that successful exploration and understanding of relational and affective themes, and maladaptive behaviors and thought patterns can take place with the goal of increasing self-awareness and leading to fuller, happier lives.

Previously, Dr. Stern served as a Psychology Intern at Beth Israel Medical Center in Manhattan. She completed year-long trainings at Bellevue Hospital Center, Fordham University Counseling and Psychological Services, North Central Bronx Hospital, Public School 116, and the Association for the Help of Retarded Children.

Dr. Stern received her Bachelor of Science in Human Development from Cornell University. She attained her Master's Degree in Counseling and Personnel Services and her Ph.D. in Counseling Psychology from Fordham University. Dr. Stern's doctoral dissertation explored the impact of parents' confidence in their ability to cope with stress on the academic achievement of racial and ethnic minority youth. Her dissertation can be found in Dissertation Abstracts International.  

Stephanie Soriano-Daughtrey, Psy.D., a licensed clinical psychologist, obtained her Doctoral degree in 2005 from the American School of Professional Psychology in Washington DC. She completed her pre-doctoral internship at the Astor Home for Children in Poughkeepsie, NY. At Astor, she specialized in play therapy techniques and treatment. Dr. Soriano-Daughtrey presently conducts individual psychotherapy and evaluations at Diagnostics, LLP.

Dr. Soriano-Daughtrey has diverse experience in child and adolescent therapy, family therapy, group therapy and conducting comprehensive psychological evaluations. Her specialties include play therapy, trauma-based cognitive behavioral therapy and dialectical behavior therapy. Dr. Soriano-Daughtrey has worked in a range of settings, including schools, clinics, courts and inpatient hospitals. She has treated patients with a variety of disorders ranging from depression, anxiety, trauma, oppositional defiance/ conduct disorders, psychosis, school phobia/refusal, parent/child relational issues, eating disorders, personality disorders and attachment disorders. In addition, Dr. Soriano-Daughtrey is active in clinical consultation with a variety of agencies as well as the supervision and training of mental health professionals.

Dr. Soriano-Daughtrey believes that successful therapy is grounded in a continuous, strong, genuine therapeutic relationship. It is her conviction that a therapist’s primary effectiveness is through the development of a therapeutic alliance, which is demonstrated through authentic and unconditional positive regard for the client. This relationship is an essential prerequisite for an efficacious treatment process.