Psychologist | General Psychology

Dr. Judith Linzer, PHD

20200 Redwood Road, Suite 2, Castro Valley, California, 94546

About Dr. Judith Linzer

Dr. Judith Linzer is a psychologist based in Castro Valley, California who is specialized in General Psychology. Active license number of Dr. Judith Linzer is PSY9833 for Forensic Psychology in California. Her current practice location is 20200 Redwood Road, Suite 2, Castro Valley. Patients can contact her at 510-887-8819 or can fax her at 510-655-7974. Dr. Judith Linzer, PHD, specializes in General Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1487879268.

Dr. Judith Linzer is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, she performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. She 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. Judith Linzer'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. Judith Linzer
Specialization General Psychology
Credentials PHD
Gender Female
Practice Address: 20200 Redwood Road, Suite 2
Castro Valley, CA - 94546
Fax 510-655-7974

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 Number1487879268
NPI Enumeration Date: 16 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. Judith Linzer are as mentioned below.

License NumberSpecializationStateStatus
PSY9833Forensic Psychology CaliforniaPrimary
PSY9833General Psychology CaliforniaSecondary
PSY9833Clinical Psychology CaliforniaSecondary
PSY9833Clinical Child & Adolescent Psychology CaliforniaSecondary
PSY9833Family Psychology CaliforniaSecondary

Other Medical Identifiers

Other professional identifiers associated with Dr. Judith Linzer such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
075155OtherMNN

Mailing Address

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

Dr. Judith Linzer
4096 Piedmont Ave, Suite 320
Oakland, CA - 94611
Phone: 510-887-8819
Fax: 510-655-7974

Book an Appointment with Dr. Judith Linzer

To schedule an appointment, contact Dr. Judith Linzer at 20200 Redwood Road, Suite 2, Castro Valley, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Judith Linzer:

Dr. Judith Linzer is a psychologist specializing in Forensic Psychology. She helps to facilitate the legal process by providing psychology expertise to various individuals in the legal system. Her understanding and explanations of certain aspects of psychological health can help move along court cases, inform juries, determine the reasons behind crimes being committed, and otherwise play an integral role in the system. Forensic psychologist responsibilities include conducting screenings or assessments of prisoners, investigate psychological disorders among criminal and civil court defendants, and to examine the mental state of criminals to determine if they are able to stand trial.

Yes, Dr. Judith Linzer 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. Judith Linzer practices at 20200 Redwood Road, Suite 2, Castro Valley, California, 94546.

To schedule an appointment with Dr. Judith Linzer, please contact the office at 510-887-8819.

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