About Us


Pacific Psychology Services is comprised of a group of licensed clinical psychologists. Each psychologist has received specialized training in forensics and are committed to providing excellence.

James Manley, Ph.D., SOTP

James Manley, Ph.D. is a licensed clinical psychologist and sex offender treatment provider in Washington. He is located in Tacoma where he is the lead psychologist of Pacific Psychology Services. He is experienced in a broad range of clinical areas including counseling, forensic evaluation, supervision and teaching. Particular professional interests include cross cultural issues, children and families, sexual misconduct, personality disorders, substance abuse, domestic violence, anxiety, and depression.

Dr. Manley’s areas of forensic expertise include parental capacity, mental state defense, Special Sex Offender Sentencing Alternative, and Sexually Violent Predator evaluations. He has provided supervision and training in the areas of forensics, counseling, parental capacity, and testing at the undergraduate, graduate, and postgraduate levels.

Bruce Duthie, Ph.D., ABPP

Dr. Duthie received his doctorate from Texas A&M University. He has over 30 years of experience doing forensic evaluations. He is a Diplomat with the American Board of Professional Psychology in Forensic Psychology. He is an adjunct professor at Antioch University where he taught Forensic Psychology and psychological evaluation. His forensic (psycho-legal) experience includes the following kinds of forensic evaluations: competency, sanity, personal injury, parental capacity, juvenile assessment, and psycho-sexual assessment.

Dr. Duthie also has extensive experience in group, individual, and family therapy. He specializes in the treatment of children and adolescents as well as patients with personality disorders. He approaches psychotherapy from a behavioral and humanistic perspective based on his extensive experience and training in Gestalt Therapy.

Fran Lexcen, Ph.D.

Dr. Lexcen is a licensed psychologist with over 15 years of experience working with families and children in both domestic and criminal court settings. She has published in scientific journals and law review publications, and presents to judges, lawyers and clinical psychologists on a variety of topics related to assessment and intervention.

Dr. Lexcen is especially interested in promoting the well-being of children within the family setting where positive relationships can enhance developmental outcomes.

Megan Carter, Psy.D

Dr. Carter graduated with her master’s degree in applied social psychology from Portland State University before completing a master’s degree in clinical psychology and a doctorate in clinical psychology, with an emphasis on forensics, at Pacific University in Forest Grove, Oregon. She completed a pre-doctoral internship at Western State Hospital and then a forensic post-doctoral fellowship through the University of Washington School of Medicine, Department of Psychiatry. She has presented internationally and has published. She became a licensed psychologist in Washington State in 2008.

Dr. Carter works as a forensic psychologist with specialty areas in sexual abuse and child welfare issues. She has been declared an expert by the courts in both these areas and has provided expert testimony. She is available for trainings and consultation in variety of areas.

Kendra M.S. Crowell, Ph.D.

Dr. Crowell completed her Ph.D. in clinical psychology with an emphasis in Forensic Psychology at Palo Alto University. She completed a pre-doctoral internship at Western State Hospital and then a forensic post-doctoral fellowship including forensic evaluations and psychological assessment at Western State Hospital. She has presented internationally, and is published in scientific journals.

Dr. Crowell is a licensed Psychologist in the state of Washington. She is employed as a forensic psychologist and specializes in evaluation of competency to proceed to trial, mental state, civil commitment, violence risk assessment, and parental fitness and capacity.

Tanya Siedorkmai, MA
Office Manager

Ms. Siedorkmai brings a wealth of international perspective and organization to Pacific Psychology Services. Her past management skills have assisted both psychologists and clients. Ms. Siedorkmai earned her M.A. in English as a Second Language from Thailand and taught learners of all ages for 25 years. While continuing to serve her country she was an International Relations Officer for the Ministry of Information and Communication Technology under the supervision of the Royal Thai Government, and the Director of English Language Development Center with the Ministry of Education of Thailand. In the private sector she has traveled extensively to English speaking countries leading groups of Thai students on educational and cultural trips.

After relocating to the US, Ms. Siedorkmai has been an International Student Advisor at the community college level. She has also been a volunteer instructor at the Tacoma Community House and with the Tacoma Community College. She has volunteered at St. Joseph Hospital and the Asia Pacific Cultural Center.