Dianna Welsh, M.S., LMFT (#116645)

Dianna Welsh | Paradigm San Francisco

Dianna holds a Master’s degree in Counseling with a specialization in Marriage and Family Therapy from California State University at Sacramento and a Bachelor’s degree in Psychology from San Diego State University. She served as a research assistant at San Diego State University before shifting her focus to working directly with youth in a clinical setting. Her experience in an inpatient psychiatric hospital is where she developed her passion for serving teens and their families. In addition to her experience providing individual and family therapy in a residential treatment setting for youth struggling with severe depression, trauma, and family and psychosocial issues, Dianna is a skilled administrator who has trained graduate students in clinical assessments and therapeutic protocols for in-patient mental health care.

Dianna believes in a strength-based and holistic approach to treatment. She believes whole-heartedly in the healing nature of human connection and the importance of teens being seen and valued for who they really are. She employs a range of therapeutic approaches and combines them in a way intended to honor the unique experiences and self-discovery of each teen. Dianna strives to create an authentic and healing connection with the youth in her care.


Dr. Nalin is a Licensed Clinical Psychologist, and Founder and Executive Director of Paradigm Treatment Centers, who has been a respected leader in the field of adolescent mental health for more than 20 years. He received his undergraduate degree from the University of Southern California, his Master’s degree from Loyola Marymount University, his Doctoral degree from Pacific University’s APA approved Clinical Psychology program, and completed his training at the University of California, San Diego’s APA approved psychology internship program.

Dr. Nalin has provided training and mentoring to students entering the field of psychology at institutions of learning including Pepperdine University’s Graduate School of Education and Psychology, UCSD, Pacific University, and Santa Monica College. He was also instrumental in the development of the treatment component of Los Angeles County’s first Juvenile Drug Court, which now serves as a national model.

Dr. Nalin has appeared as an expert on shows ranging from CBS News and Larry King, to CNN, The Today Show and MTV. He was also featured in an Anti-Drug Campaign for the Office of National Drug Control Policy (ONDCP).

Dr. Nalin is a Diplomate of the National Institute of Sports Professionals and a Certified Sports Psychologist as well as a Certified Chemical Dependency Intervention Specialist. He lectures and conducts workshops nationally on the issues of teen mental health, substance abuse prevention, and innovative adolescence treatment.

In 2017 Dr. Nalin was awarded The Sigmund Freud Foundation and Sigmund Freud University’s Distinguished Achievement Award in recognition of his work with youth in the field of mental health over the course of his career.