Our Providers

 Dr. Rider is a clinical psychologist with over a decade of experience in the assessment of neurologic and psychiatric disorders. He earned his doctorate in Clinical Psychology in 2012 from Drexel University with a concentration in neuropsychology. He completed his post-doctoral fellowship at Thomas Jefferson University in the Department of Neurology in 2014. Dr. Rider has diverse experience in the assessment and rehabilitation of cognitive functioning in a variety of disorders and diseases including traumatic and anoxic brain injury, stroke, learning disorders, ADHD, chronic pain, epilepsy, dementia, and sleep disorders. He is also a licensed and practicing psychotherapist and has served as an academic and community educator on many topics related to brain health and neuropsychology. He has also served as a forensic expert in psychology and neuropsychology on matters of traumatic brain injury, posttraumatic stress disorder, dissociative identity disorder, competency, and workplace discrimination.

Dr. Friedman is a clinical neuropsychologist licensed in Pennsylvania and New Jersey. She earned her Doctorate in Clinical Psychology from Widener University and completed her master’s degree in Crisis and Trauma Studies at Tel Aviv University in Israel. Dr. Friedman earned her Bachelor of Arts in Psychology at the University of Pennsylvania and completed her doctoral internship at the Neurobehavioral Wellness Center and the Penn Memory Center. She completed a two-year post-doctoral fellowship in neuropsychology at the RSM Psychology Center and Sports Concussion Center of New Jersey. Dr. Friedman’s areas of expertise include neuropsychological assessments, school-based assessments, and cognitive behavioral psychotherapy (CBT). She has conducted research on child abuse, therapy process factors, attention-deficit hyperactivity disorder, Parkinson’s disease, and sports-related concussion. She has also co-authored articles for the public on subjects such as neuropsychological assessment of ADHD and the long-term symptoms of COVID-19.

Dr. van Steenburgh is a clinical neuropsychologist who completed his undergraduate work at Duke University with a B.S. in Psychology and a concentration in Neurosciences. He earned a Masters in Journalism from Temple University and worked for 7 years as an editor and writer covering medicine and epidemiological issues for various publications. This work kindled an interest in research, so he returned to school and earned his doctorate in Neuropsychology from Drexel University. After he completed an Internship in Neuropsychology at Vancouver Coastal Health in Vancouver, BC, he worked as a post-doctoral fellow at The Johns Hopkins School of Medicine. At Johns Hopkins, he conducted research applying direct current stimulation to improve cognitive functioning in schizophrenia and autism. Since returning to the Philadelphia area, Dr. van Steenburgh has worked in medico-legal settings to provide neuropsychological evaluation for adults of all ages and neurological conditions. He has also worked in assisted living and memory care communities to provide cognitive remediation, education, support, and therapeutic services for older adults, their caregivers and their families.

Dr. LaDuke is a licensed psychologist specializing in neuropsychology and forensic assessment. He earned his PhD in Clinical Psychology in 2016 from Drexel University with major areas of study in clinical neuropsychology and forensic psychology. He completed an APA-accredited pre-doctoral internship at NYU Langone Health (adult neuropsychology track) at Rusk Rehabilitation and the Comprehensive Epilepsy Center, and then a 2-year postdoctoral fellowship in clinical neuropsychology at the UVA School of Medicine in the Department of Psychiatry & Neurobehavioral Sciences (APPCN Member Program). Dr. LaDuke has diverse clinical and forensic experience in the assessment of brain-behavior relationships and cognitive rehabilitation working with a variety of clients, including traumatic brain injury, epilepsy, stroke, psychiatric disorders, and pre-surgical evaluations (among others). He is currently licensed to practice in Pennsylvania, New York, and Delaware.

In addition to his clinical practice, Dr. LaDuke is an Assistant Clinical Professor with the Brain Injury Research Center at the Icahn School of Medicine at Mount Sinai. He was also previously a faculty member at the City University of New York, including in the Department of Psychology at John Jay College and in two APA-accredited PhD programs in clinical psychology at the CUNY Graduate Center specializing in forensic psychology and clinical neuropsychology. He serves on the editorial board of the journal Law and Human Behavior, and is also a reviewer for several peer-reviewed journals in neuropsychology and forensic psychology.

Dr. Grewal is a clinical psychologist specializing in both psychological and neuropsychological testing, offering comprehensive assessments that help patients gain clarity about their cognitive, emotional, and behavioral functioning. Her clinical focus includes anxiety, depression, obsessive-compulsive disorder (OCD), social anxiety, trauma, and navigating major life transitions. She also work with individuals experiencing burnout, perfectionism, or difficulties adjusting to new roles and responsibilities.

Dr. Grewal earned her undergraduate degree in psychology from LaSalle University and completed her Doctorate in Psychology at The Chicago School of Professional Psychology, an APA-accredited institution. Over the years, she has gained extensive experience working in a variety of settings, including inpatient and outpatient hospitals, private practices, and outpatient clinics. This diverse experience has helped her refine her ability to support patients in different stages of their mental health journey.

Dr. Grewal takes a compassionate, individualized approach, meeting each patient where they are emotionally and psychologically, and helping them build a path forward that honors their goals, values, and lived experiences. Her therapeutic work is grounded in multicultural awareness and a deep respect for the diverse identities and backgrounds her patients bring to the room.

Dr. Grewal draws from a variety of evidence-based practices, including Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), and Narrative Therapy, integrating these approaches to meet each patient’s unique needs. She also supports individuals processing trauma, offering a space that is both empowering and healing. Above all, she believes therapy is a collaborative journey, one that provides tools, insight, and support to foster resilience, clarity, and lasting change.

Kristy is a licensed therapist specializing in trauma, neurodivergent concerns, couples/sexual concerns, and LGBTQIA+ issues. She has extensive experience with individuals with severe trauma, anxiety, and depression, often with various co-occurring disorders ranging from addictions and eating disorders to schizophrenia and has worked with individuals, couples, families, and groups from a variety of ages, backgrounds, and clinical presentations. She obtained her master's in clinical mental health counseling from West Chester University in 2023 and is in the process of obtaining full licensure. Kristy is an integrative multi-cultural feminist practitioner, meaning that she considers culture, community, and environmental factors and how they contribute to a client’s symptomology or treatment interventions. She focuses on utilizing ACT and DBT to help clients address behaviors while utilizing psychoeducation, attachment theory, Family Systems, and trauma-informed practices to help determine the root causes behind a given behavior or belief that the client wishes to address. Kristy is passionate about creating a safe, non-judgmental, supportive, and genuine environment for her clients. This includes taking the time to build trust and rapport, allowing clients to have input in terms of what they need from therapy, and working with them to create an individualized, strengths-based, holistic approach to meaningful change.

Nicki Nazarski is a third-year doctoral student in school psychology at Philadelphia College of Osteopathic Medicine (PCOM). Nicki has been a special education teacher for seventeen years. She also has an educational consulting and advocacy business specializing in IEP review, school avoidance/refusal, anxiety, and mood disorders that impact students' access to education. Nicki has also worked in Partial Hospitalization Programs as an Education Therapist, specializing in OCD, Anxiety, and Mood Disorders. Nicki's interests are social media's impact on individual functioning and its impact on the motivation for psychological assessment, anxiety disorders, ADHD, and neuropsychological assessment.