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

Marissa Ashley Justen

Individual provider Psychiatry Physician · NPI 1861182818

Marissa Ashley Justen is a Psychiatry Physician in San Francisco, California. Licensed in California. Registered with an NPI since 2023.

Licensed in
CA
In the registry since
2023

Practice location Address checks out

500 Parnassus Ave
San Francisco, CA 94143-2203
Phone: (415) 476-4562
Fax: (415) 502-4166
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 199201 (CA)

Record details

NPI number1861182818
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 12, 2023
Last updated in NPPESJanuary 28, 2025
Certification dateJanuary 28, 2025

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