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About Me

Dr. Margreta Klassen is a psychologist specializing in individual psychotherapy, who maintains a private practice in Costa Mesa, California.

Dr. Klassen has over 30 years experience as a therapist, and 15 years as a counseling, clinical, and developmental psychologist. Among her areas of expertise are stress management, wellness, relationships of various types, and adults molested as children. Her doctorate was awarded by Claremont Graduate University in 1982. Her dissertation research examined the therapeutic and sexual roles in high-quality marriages.

In addition to being a prominent relationship therapist, Dr.Klassen has presented at state, national, international conferences, and to general audiences speaking on the topics of stress management, sexuality, wellness, and treatment of adults molested as children. Her practice includes evidence-based treatment. Her therapeutic approach is to provide support and practical feedback to help clients effectively address personal life challenges. She integrates complementary methodologies and techniques to offer a highly personalized approach tailored to each client. With compassion and understanding, Dr. Klassen works with each individual to help them build on their strengths and attain the personal growth they are committed to accomplishing.


Ph.D. Life Span Development, Educational Studies: Claremont Graduate University, 1982

Master's Degree in Counseling: California State University, Los Angeles, 1972

Post doctoral training in psychology: UCLA, Harvard Medical School, UCSD, and various professional conferences, national, and international 1996-present


California psychologist license # 14581, in good standing, granted 1996

Certifications & Awards:

Diplomate in Treatment of Sexual Abuse, American Board of Forensic Examiners

Fellow of the American College of Advanced Practice in Psychology Inc.

Susan B.Anthony Award for Outstanding Contributions to Women, NOW, Pomona Valley Chapter

Who's Who in California, Who's Who in American Women, Who's Who in the World, Who's Who in Healthcare Providers

Certification as a Biofeedback Practitioner, Association for Applied Psychophysiology and Biofeedback

Certification in Stress Management, International Stress Management Association, USA branch

Professional Activities and Memberships

Board of Directors: California Biofeedback Society, International Stress Management Association, USA branch, Orange County Psychological Association.

Member: Society for Research in Adult Development, Orange County Psychological Association, California Psychological Association, International Society of Police Surgeons, Inc.

Senior Fellow Emeritus: Association for Applied Psychophysiology and Biofeedback

Past member of the American Psychological Association, the California Association of Marital and Family Therapists, New York Academy of Sciences

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