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 fifteen 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. 

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.  

Marium Zafar, Psy.D. is a licensed clinical psychologist. She received her Doctorate of Psychology at Wright State University. Her dissertation focused on increasing awareness of mental health issues in South Asians. Dr. Zafar graduated from Miami University in Oxford, Ohio with her Bachelor of Arts in Psychology.

Dr. Zafar completed her internship at Wright State University and Dayton Children’s Hospital in Dayton, Ohio. She also completed a two year postdoctoral fellowship in pain management at Cincinnati Children’s Hospital Medical Center. Some of her research on pediatric migraines has been published.

Throughout her graduate and post-graduate training, Dr. Zafar has gained significant experience assessing and treating children, adolescents, and young adults with various diagnoses including mood disorders, anxiety, learning disorders and behavioral problems.  Dr. Zafar values the therapeutic relationship as an integral component of change. She implements a cognitive-behavioral and interpersonal framework for therapy, while remaining flexible with this approach and treating people within their context.

Heather Brooke, Psy.D. obtained her Doctoral degree in Clinical Psychology at Regent University in Virginia Beach, VA.  Dr. Brooke graduated with her Bachelors of Arts from Miami University in Oxford, OH.  She has presented at several professional conferences and has published articles in professional journals.

Since obtaining her doctorate in 2008, Dr. Brooke has developed specialties working with adolescents and their families, young adults, and individuals who have experienced trauma and sexual issues. In addition to private practice, Dr. Brooke has worked as a Clinical Coordinator and supervisor for several years at a Residential Treatment Center for trouble youth. Additionally, Dr. Brooke has integrated trained dogs for dog assisted therapy when relevant in treatment.

Dr. Brooke has worked with a wide range of populations and ages including children, adolescents, and adults.  She has consulted and conducted treatment in residential treatment centers, outpatient community counseling centers, prisons, in-patient hospitals, and patient’s homes.  Dr. Brooke’s treatment approach incorporates crisis intervention, interpersonal therapy, solution-focused treatment and cognitive behavioral therapy.  She maintains additional certifications in Trauma-Focused Cognitive Behavioral Treatment, Dog Therapy, Sanctuary Model, and Office of Mental Health First Responder for Disaster Relief.

Joanna Oleson, Psy.D. obtained her Doctoral degree in clinical psychology at Nova Southeastern University and is licensed in New York State.  She holds a Masters degree from Scranton University focusing on health psychology, personal growth, and stress management. Dr. Oleson completed a two-year program of Hakomi Therapy, a body centered psychotherapeutic approach utilizing mindfulness to deepen awareness of the body’s ability to hold and reveal emotions. She has also completed two years of analytic training at the Institute for Psychoanalytic Study of Subjectivity in New York City.  Dr. Oleson is exploring ways of integrating mindfulness, personal growth, and relation to others into clinical psychotherapy.

Dr. Oleson has a depth of experience working with individuals, couples and families with a range of clinical concerns.  She worked with children and families at Astor Services for Children in Poughkeepsie, NY and at Good Shepherd Services in Bronx, NY.  She has worked with students in several college counseling clinics;, with veterans on the PTSD Unit at the Montrose VA; with seniors in nursing home facilities; and with adults and families in a community mental health center.  She has more than ten years experience working with clients dealing with trauma, loss, anxiety, depression, adjustment issues and psychosis.  

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.  

Jessica Pearson, Psy.D. is a licensed clinical psychologist. She received her Doctorate of Psychology from Yeshiva University in 2003. Dr. Pearson completed her pre-doctoral internship at Bellevue Hospital Center/NYU School of Medicine, after which she continued at the hospital to complete a post-doctoral fellowship in forensic and clinical psychology. Subsequent to her fellowship, Dr. Pearson served as a clinical psychologist for five years on the Inpatient Forensic Psychiatry Service at Bellevue Hospital, evaluating and treating male forensic psychiatric patients. She currently serves as a clinical psychologist at Elmhurst Hospital Center/Mount Sinai School of Medicine on the Women’s Forensic Unit, evaluating and treating female forensic psychiatric patients.

Dr. Pearson has extensive experience with psychological testing and forensic assessment. She conducts court ordered evaluations around issues of competency to stand trial. She also specializes in pre-pleading/pre-sentencing mitigation evaluations; evaluation of mental state at the time of offense; and evaluation of psychological damages in civil cases.

Mala Datta is a New York State licensed psychologist. She has been in private practice since 1994. She received her PhD from India and has lived and worked in the UK and Saudi Arabia before moving to the United States. She works with individuals of all ages and has treated concerns including anxiety, depression, relationship issues, and chronic pain issues. Dr. Datta also works with children and their parents around behavioral concerns. She consults with Nursing homes and provides evaluations for Surgical procedures when requested by physicians

Dr. Datta’s treatment approach incorporates cognitive behavior therapy, solution based therapy and mindfulness based psychotherapy. She uses and teaches Biofeedback to help individuals relieve stress, anxiety and pain. She is also trained to use EEG Biofeedback with children and adults diagnosed with Attention Deficit Hyperactivity Disorder. Dr. Datta is currently on the Board of the North East Regional Biofeedback Society. She is a firm believer in tailoring therapy to an individual’s needs.

Dr Datta volunteers with organizations that help Asian women and children facing domestic violence. She speaks Hindi, Bengali and Urdu.

Jonathan Spitz, Psy.D. holds a doctoral degree in clinical psychology from The Chicago School of Professional Psychology.  He has diverse experience in individual, couple, and group psychotherapy.  Dr. Spitz completed his pre-doctoral internship at the New Mexico State University Counseling Center in Las Cruces, NM.  His clinical experience includes settings such as community mental health, university counseling centers, county health departments, and private practice. 

Dr. Spitz’s doctoral dissertation explored the impact of the stigma of mental illness within a young adult male population and he received a fellowship from the Naomi Ruth Cohen Institute for Mental Health Education.  Dr. Spitz graduated with his Bachelor of Science from the University of Illinois. 

Dr. Spitz works with his clients collaboratively, emphasizing the development of a unique and genuine therapeutic relationship.  Dr. Spitz utilizes an integrative approach to treatment, including aspects of cognitive-behavioral, interpersonal, constructivist, and family systems therapies.  When useful, he also incorporates breathing, relaxation, and mindfulness techniques as a means of furthering the connection between mind and body, thus helping reduce symptoms associated with stress, anxiety, depression, and chronic pain.  Dr. Spitz works with individuals from diverse backgrounds with concerns around relationships, trauma, life transitions, substance abuse, depression, anxiety, and multicultural issues. 

Leslie Ackerman, Psy.D is a licensed psychologist who received her doctorate in 2008 from Antioch University New England in Keene, NH. Dr. Ackerman obtained a Bachelor of Arts in Psychology from the University of Iowa in Iowa City, IA.

Dr. Ackerman completed her pre-doctoral internship at MercyFirst working with adolescent mothers and their young children at the Mother-Baby group home in Brooklyn. Her post-doctorate training was completed at Coney Island Hospital in the Child and Adult Outpatient Clinic, where she provided individual, group and family therapy. Dr. Ackerman is currently an Instructor of Pediatrics at Albert Einstein College of Medicine, as well as a Supervising Psychologist at the Children’s Hospital at Montefiore in a school based mental health clinic.

Dr. Ackerman’s clinical experiences have included working with children and their families, ranging in age from newborn to young adults; adult clientele; and the geriatric population. She has extensive experience conducting psychological and psychoeducational assessments with children and adolescents. She has provided psychotherapy and psychological evaluations with children with presenting issues such as general adjustment difficulties, anxiety disorders, Depression and mood disorders, and behavioral disorders. Dr. Ackerman’s approach to treatment is integrative, with a strong emphasis on interpersonal therapy.  She is versed in cognitive behavioral therapy and dialectal behavioral therapy, as well as family based interventions including positive parenting approaches and skills training.

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.

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.