Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Katherine Elizabeth Oien, OTD, OTR/L, MS

Individual provider Pediatric Occupational Therapist · NPI 1881148021

Katherine Elizabeth Oien, OTD, OTR/L, MS is a Pediatric Occupational Therapist in Santa Ana, California. Works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2016
What do these letters mean?
OTD — Doctor of Occupational Therapy
The doctoral degree in occupational therapy.
OTR/L — Occupational Therapist, Registered and Licensed
An occupational therapist who is both nationally registered and state licensed.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

200 W Santa Ana Blvd Ste 100
Santa Ana, CA 92701-4134
Phone: (714) 928-2899
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 16782 Von Karman Ave Ste 11, Irvine, CA 92606-2417 — (714) 928-2899

Specialties & licences

Pediatric Occupational Therapist (primary) Taxonomy 225XP0200X · Licence OT16344 (CA)

Record details

NPI number1881148021
Entity typeIndividual (Type 1)
GenderFemale
Credentials OTD , OTR/L , MS
Sole proprietorNo
NPI enumeratedAugust 4, 2016
Last updated in NPPESJanuary 9, 2023
Certification dateOctober 29, 2020

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