Psychologist | Clinical Child & Adolescent Psychology

Dr. Katherine Nguyen Williams, PH.D.

3665 Kearny Villa Rd, Suite 101, San Diego, California, 92123-1953

About Dr. Katherine Nguyen Williams

Dr. Katherine Nguyen Williams is a psychologist based in San Diego, California who is specialized in Clinical Child & Adolescent Psychology. Active license number of Dr. Katherine Nguyen Williams is PSY22387 for General Psychology in California. Her current practice location is 3665 Kearny Villa Rd, Suite 101, San Diego. Patients can contact her at 858-966-5832 or can fax her at 858-966-6733. Dr. Katherine Nguyen Williams, PH.D., specializes in Clinical Child & Adolescent Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1033316005.

Dr. Katherine Nguyen Williams analyse the cognitive, social and emotional development of children. Typically, she look at development from the prenatal period through adolescence. Some of the traditional areas of interest include genetics, language development, learning disabilities, personality, gender roles, cognitive development, sexual development and social growth.
Clinical Child Psychologist responsibilities includes task like assessing and treating learning or developmental disabilities or delays; Working with children and their caregivers to manage behavioral issues; Administering psychological tests; Conducting scientific research on childhood development; Working with a health care team to create a unique treatment plan for a client.

Practice Information

Dr. Katherine Nguyen Williams'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. Katherine Nguyen Williams
Specialization Clinical Child & Adolescent Psychology
Credentials PH.D.
Gender Female
Practice Address: 3665 Kearny Villa Rd, Suite 101
San Diego, CA - 92123-1953
Fax 858-966-6733

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 Number1033316005
NPI Enumeration Date: 02 Jul, 2007
NPI Last Update On: 15 Jul, 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 Dr. Katherine Nguyen Williams are as mentioned below.

License NumberSpecializationStateStatus
PSY22387General Psychology CaliforniaPrimary
PSY22387Clinical Child & Adolescent 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. Katherine Nguyen Williams
3020 Childrens Way, Mc 5018
San Diego, CA - 92123-4223
Phone: 858-966-5832
Fax: 858-966-6733

Book an Appointment with Dr. Katherine Nguyen Williams

To schedule an appointment, contact Dr. Katherine Nguyen Williams at 3665 Kearny Villa Rd, Suite 101, San Diego, California or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Katherine Nguyen Williams:

Dr. Katherine Nguyen Williams is a psychologist specializing in General Psychology. She 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.

Yes, Dr. Katherine Nguyen Williams 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. Katherine Nguyen Williams practices at 3665 Kearny Villa Rd, Suite 101, San Diego, California, 92123-1953.

To schedule an appointment with Dr. Katherine Nguyen Williams, please contact the office at 858-966-5832.

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