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

Katherine Y. Ko, PHD & Associates, a Psychological Association

Organization Clinical Psychologist · NPI 1265459911

Katherine Y. Ko, PHD & Associates, a Psychological Association is a Clinical Psychologist in Irvine, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006

Practice location Address checks out

4000 Barranca Pkwy Ste 250
Irvine, CA 92604-1713
Phone: (949) 262-3696
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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 PSY18545 (CA)

Record details

NPI number1265459911
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Katherine Ko — President · (949) 262-3696
Other names Perfect Harmony, Inc.
NPI enumeratedJuly 17, 2006
Last updated in NPPESAugust 22, 2020
Mailing address4000 Barranca Pkwy Ste 250, Irvine, CA 92604-1713

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