Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Know Now Psychological Services, PC

Organization Cognitive & Behavioral Psychologist · NPI 1609569672

Know Now Psychological Services, PC is a Cognitive & Behavioral Psychologist in San Francisco, California. Registered with an NPI since 2023.

In the registry since
2023
Specialties on file
3
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

399 Laurel St Ste 9
San Francisco, CA 94118-1952
Phone: (415) 295-5537
Fax: (415) 413-2861
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cognitive & Behavioral Psychologist (primary) Taxonomy 103TB0200X
Clinical Child & Adolescent Psychologist Taxonomy 103TC2200X
School Psychologist Taxonomy 103TS0200X

Record details

NPI number1609569672
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Brian Gustman — Practice Owner/Psychologist · (415) 295-5537
NPI enumeratedMay 26, 2023
Last updated in NPPESMay 26, 2023
Certification dateMay 26, 2023
Mailing address399 Laurel St Ste 9, San Francisco, CA 94118-1952

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