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

Dr. Sylvanna Gavia Callaway Brennan, PHD

Individual provider Clinical Child & Adolescent Psychologist · NPI 1043373970

Dr. Sylvanna Gavia Callaway Brennan, PHD is a Clinical Child & Adolescent Psychologist in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4141 Geary Blvd Fl 4 411
San Francisco, CA 94118-3118
Phone: (415) 833-7112
Fax: (415) 833-4765
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Child & Adolescent Psychologist (primary) Taxonomy 103TC2200X · Licence PSY20417 (CA)

Record details

NPI number1043373970
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedDecember 19, 2006
Last updated in NPPESJanuary 11, 2022

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