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

Dr. Trinnin Olsen, PSYD

Individual provider Clinical Psychologist · NPI 1811363138

Dr. Trinnin Olsen, PSYD is a Clinical Psychologist in Corona, California. Licensed in California. Registered with an NPI since 2015.

Licensed in
CA
In the registry since
2015
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

280 Teller St
Corona, CA 92879-1898
Phone: (909) 825-7084
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY32367 (CA)

Record details

NPI number1811363138
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorNo
NPI enumeratedAugust 20, 2015
Last updated in NPPESJuly 22, 2025
Certification dateJuly 22, 2025

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