About Dr. Jonathan Gransee, PSY.D.

Licensed Clinical Psychologist


Dr. Jonathan M. Gransee is a forensic and clinical psychologist in private practice in Lancaster, Pennsylvania, and
Philadelphia, Pennsylvania.
Dr. Gransee practices primarily in the area of forensic psychological evaluations and court testimony for civil and criminal cases. Dr. Gransee is routinely retained by prosecution and defense counsel for his services. In addition, Dr. Gransee provides therapeutic interventions through individual, couples, and family counseling sessions. He works with the entire age range, from young children, to older adults..
Over the past several decades, Dr. Gransee’s private practice has provided services to multiple entities, including working with multiple child-focused agencies conducting BHRS evaluations, contracting with the State Disability program, contracting with several Veteran Evaluation companies, contracting with multiple county Children and Youth agencies, and also working with many attorneys and courts. Dr. Gransee has provided continuing education seminars for attorneys, psychologists, and marriage/family therapists and social workers. He has also supervised multiple interns, over the years, in the provision of psychological services, including evaluations and therapy. Dr. Gransee has also conducted educational seminars for the general population on the topic of Mindfulness.

Forensic practice

General forensic practice includes forensic evaluations, consultation with attorneys, and testimony. Dr. Gransee has participated in many cases of court testimony, and is a seasoned professional in this area.

court cases involving

Child Custody Parenting Capacity/Competency Competency Abuse cases Murder or attempted murder Sexual assault Juvenile Decertification

clinical practice

In his private practice, Dr. Gransee focuses on providing his unique brand of therapeutic intervention, involving a combination of insight-oriented and solution-focused treatment. The goal is to support the individual in becoming the best version of themselves they can be, through increased awareness of problem areas, and improved confidence in the ability to become the best that they can be. Depression, anxiety, anger, and other emotional or behavioral issues are viewed as evidence that the individual is overwhelmed/agitated by their life choices, and not as permanent conditions that are not able to be corrected.