Serving attorneys, individuals across California, Oregon, New York, Connecticut, Idaho, US.

A middle-aged man with light brown hair and a beard, wearing a dark blazer and shirt, sitting in front of a bookshelf in a library or office.
Contact Dr. Klein

Lucas A. Klein, Ph.D.

Licensed Psychologist in Oregon, California, Connecticut, New York, Idaho

Whether you are an attorney building or defending a civil litigation case, an individual seeking a thorough psychological evaluation, or someone ready to do serious work in therapy — I offer the depth of training and the direct, practical approach to be genuinely useful to you.

  • Clinical & Forensic Psychology

  • Psychological Testing & Assessments for Individuals

  • Psychotherapy, Psychoanalysis

  • Oregon, California, New York, Connecticut, Idaho

  • Expert Witness

  • Civil and Criminal Forensic Experience

  • Qualified Medical Examiner (QME)

FOR ATTORNEYS

I serve as an expert witness in civil litigation, providing forensic psychological assessments, case consultation, and courtroom testimony across California and multiple states. Personal injury, QME, PTSD, Defense Base Act Claims, and emotional distress damages. I work with both plaintiff and defense.

PSYCHOLOGICAL ASSESSMENTS

Comprehensive psychological evaluations for adults — personality assessments, diagnostic testing, and written treatment recommendations. Useful for clinical, legal, or personal clarity.

THERAPY & PSYCHOANALYSIS

Practical, analytically informed psychotherapy for adults navigating complex life challenges. Private practice, no insurance. Based in San Diego with virtual sessions available.