Psychologist | General Psychology

Dr. Donald O Tessmer, PSY.D.

10436 Santa Monica Blvd, 3005, Los Angeles, California, 90025-6933

About Dr. Donald O Tessmer

Dr. Donald O Tessmer is a psychologist based in Los Angeles, California who is specialized in General Psychology. Active license number of Dr. Donald O Tessmer is LEP 1817 for School Psychology in California. His current practice location is 10436 Santa Monica Blvd, 3005, Los Angeles. Patients can contact him at 310-393-2626. Dr. Donald O Tessmer, PSY.D., specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1740400530.

Dr. Donald O Tessmer is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Practice Information

Dr. Donald O Tessmer'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 Dr. Donald O Tessmer
Specialization General Psychology
Credentials PSY.D.
Gender Male
Practice Address: 10436 Santa Monica Blvd, 3005
Los Angeles, CA - 90025-6933

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 Number1740400530
NPI Enumeration Date: 26 Apr, 2007
NPI Last Update On: 11 Sep, 2025

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 Dr. Donald O Tessmer are as mentioned below.

License NumberSpecializationStateStatus
LEP 1817School Psychology CaliforniaPrimary
LEPGeneral Psychology CaliforniaSecondary

Mailing Address

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

Dr. Donald O Tessmer
4640 Glencoe Ave Apt 5,
Marina Del Rey, CA - 90292-6388
Phone: 310-827-4307

Book an Appointment with Dr. Donald O Tessmer

To schedule an appointment, contact Dr. Donald O Tessmer at 10436 Santa Monica Blvd, 3005, Los Angeles, California or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Donald O Tessmer:

Dr. Donald O Tessmer is a psychologist specializing in School Psychology. He applies his expertise in mental health, learning, and behavior, to help children and youth succeed academically, socially, behaviorally, and emotionally.
School psychologists are uniquely qualified members of school teams that support students' ability to learn and teachers' ability to teach. They partner with families, teachers, school administrators, and other professionals to create safe, healthy, and supportive learning environments that strengthen connections between home, school, and the community.

Yes, Dr. Donald O Tessmer 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.

Dr. Donald O Tessmer practices at 10436 Santa Monica Blvd, 3005, Los Angeles, California, 90025-6933.

To schedule an appointment with Dr. Donald O Tessmer, please contact the office at 310-393-2626.

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