Psychologist | Clinical Psychology

Margreta Klassen, PHD

20371 Irvine Ave, Ste A160, Santa Ana, California, 92707-5651

About Margreta Klassen

Margreta Klassen is a psychologist based in Santa Ana, California who is specialized in Clinical Psychology. Active license number of Margreta Klassen is PSY14581 for Clinical Psychology in California. Her current practice location is 20371 Irvine Ave, Ste A160, Santa Ana. Patients can contact her at 714-540-5010 or can fax her at 714-540-5020. Margreta Klassen, PHD, specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1255455176.

Margreta Klassen is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Margreta Klassen's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Margreta Klassen
Specialization Clinical Psychology
Credentials PHD
Gender Female
Practice Address: 20371 Irvine Ave, Ste A160
Santa Ana, CA - 92707-5651
Fax 714-540-5020

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1255455176
NPI Enumeration Date: 17 Mar, 2007
NPI Last Update On: 30 Aug, 2026

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Margreta Klassen are as mentioned below.

License NumberSpecializationStateStatus
PSY14581Clinical Psychology CaliforniaPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Margreta Klassen
20371 Irvine Ave, Ste A160
Santa Ana, CA - 92707-5651
Phone: 714-540-5010
Fax: 714-540-5020

Book an Appointment with Margreta Klassen

To schedule an appointment, contact Margreta Klassen at 20371 Irvine Ave, Ste A160, Santa Ana, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Margreta Klassen:

Margreta Klassen is a psychologist specializing in Clinical Psychology. She is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Margreta Klassen is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Margreta Klassen practices at 20371 Irvine Ave, Ste A160, Santa Ana, California, 92707-5651.

To schedule an appointment with Margreta Klassen, please contact the office at 714-540-5010.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.