Phone Number (214) 265-6051

We are a full service practice with associate specialties from early childhood through the age of 65, addressing the majority of problems or concerns people experience.


Dr. Greta Kerwin, Psy.D

Dr. Greta Kerwin, Psy.D, is a licensed psychologist who has been providing clinical services to adults, children, and their families since 1997. She has worked in a variety of settings serving children, adolescents, and adults and is well versed in outlining treatment interventions to foster a client's strengths as well as address deficits. Dr. Kerwin has extensive testing experience using a multitude of measures to identify the cognitive, developmental, academic, emotional, and behavioral needs of children, adolescents, and adults. In addition, Dr. Kerwin is well versed in assessing the complexities of parenting in order to best meet a child's needs. Dr. Kerwin is an expert in family related matters, helping parents and the court make decisions in the best interest of children. In her clinical practice, Dr. Kerwin has a special interest in helping parents minimize the impact trauma and stress have on children, including thru the process of divorce. Dr. Kerwin applies her expert knowledge to her cases and because her clinical interest focuses on children and families, Dr. Kerwin is in a unique position to help parents make the best decisions to help their children succeed. Dr. Kerwin has testified as a specialist with in-depth experience assessing children and adults. From the very beginning of her training and career, Dr. Kerwin has been focusing on children and families. The impressive breadth and depth of her understanding of child and adolescent development, combined with her understanding of family dynamics, allows her to holistically view the uniqueness of each client.

In addition to her professional expertise, Dr. Kerwin is actively involved in many nonprofit agencies in the community as giving back to this wonderful city is a priority. Specifically, Dr. Kerwin has been a member of Junior League of Dallas since 2006, serving in various leadership roles. Dr. Kerwin helped set up an equine facilitated mental health program for veterans returning from war and their families at Equest and serves on their advisory board while also serving on the Executive Board for The Veterans Coalition of North Central Texas. In addition, she has been a big sister via Big Brother/Big Sisters and is actively involved in an animal rescue. She has also served on the Women's Auxiliary Board at Community Partners of Dallas. Dr. Kerwin is a native Dallasite and a graduate of Bishop Lynch High School. She has her Bachelor of Science Degree from Texas State University in Sociology and her Masters and Doctorate degrees in clinical psychology from Spalding University. She has had the opportunity to supervise practicum students from various training programs in the metroplex during which time she served as adjunct faculty at Southwestern Medical School.

Dr. Toni Hill, Psy.D.

Dr. Hill is a licensed psychologist who has been providing clinical services for over a decade. In her training and clinical work, she has been committed to the care of adults, adolescents, children, and their families and has provided services in numerous multidisciplinary settings, including forensics, schools, and private practice. Dr. Hill's expertise of children and families was requested while serving as program coordinator and interim superintendent of a short-term residential treatment center. She was also responsible for supervising masters level clinicians and psychology interns, serving as adjunct faculty at Southwestern Medical School. In addition, Dr. Hill served on a committee tasked with developing the first long-term residential treatment center in Dallas. In addition to her expertise directly working with children and families, Dr. Hill assists caregivers, caseworkers, attorneys, psychiatrists, and the entire treatment team to maximize a child's potential as her evaluations and subsequent treatment recommendations are relevant, understandable, and useful for those involved by highlighting the system's strengths as well as areas for improvement.  She has extensive experience conducting educational and fitness to proceed evaluations.

Katherine Pasche, M.S., LPC

Katherine has gained clinical experience from various settings over the past five years. She has extensive experience conducting psychological evaluations for children, adolescents, and adults for use in complex cases and court settings. Katherine enjoys collaboration with others and believes communication and consistency within the family system is critical for client change and success. She has experience counseling youth on an outpatient basis as well as within residential and correctional settings. Katherine enjoys facilitating each child’s potential for growth and development as they express themselves through therapeutic play. She applies the attachment-based and trauma-informed practices of Trust-Based Relational Intervention (TBRI) in her work with children and adolescents as well as with their caregivers.

Katherine was born and raised in Spring, Texas. She attended Baylor University where she earned a Bachelor of Arts degree in Psychology. She earned her Master of Science degree in Counseling Psychology from the University of North Texas. She is a Licensed Professional Counselor in the state of Texas.

Robin Sibert, Psy.D.

Robin Sibert, Psy.D. is a licensed specialist in school psychology who is currently completing her psychologist post-doctoral supervision with Kerwin testing. Dr, Sibert has an extensive background in assessment having worked in the juvenile, school, and private settings. For the last decade, Dr. Sibert has provided therapeutic treatment for at-risk youth as well as children and adolescents with mental illness and disabilities in the school setting. She works with parents, teachers, administrators, and staff to make certain that each child has the opportunity to reach their highest potential. In her clinical experience, Dr. Sibert applies her broad knowledge and experience to provide recommendations and support to children and families in need.

Dr. Sibert is a native of Arlington, Texas where she attended James Martin High School. She earned a Bachelor of Arts in Psychology from Hampton University in Hampton, VA. Dr. Sibert received her masters and doctoral degrees in clinical psychology from Argosy University – Dallas.

Heather Sniadecki, M.S., LPC

Heather is a licensed professional counselor who began her counseling career in 2008. She has experience treating children, adolescents, and adults. She enjoys providing play therapy to young children in order to furnish a way for children to express their experiences and feelings through a natural, self-guided, self-healing process. Heather’s work experience includes an established history of assessments both intellectual and personality based. Additionally, she has years of experience assisting clients through crisis situations.

Heather was born and raised in Carrollton, Texas and graduated from Creekview High School. She obtained her Bachelor of Arts degree in Psychology from the University of Oklahoma and her Master of Science degree in Counseling Psychology from the University of North Texas.