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

MS. Hillary Koster, MS

Individual provider Psychologist · NPI 1851475032

MS. Hillary Koster, MS is a Psychologist in San Francisco, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

2120 Market St Ste 209
San Francisco, CA 94114-1375
Phone: (415) 810-5572
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence MFC32149 (CA)
Marriage & Family Therapist Taxonomy 106H00000X · Licence MFC32149

Record details

NPI number1851475032
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS
Sole proprietorNo
NPI enumeratedOctober 25, 2006
Last updated in NPPESSeptember 11, 2025

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