Katherine Oien, OTD, OTR/L, MS
NPI 1881148021 · Pediatric Occupational Therapist · Santa Ana, CA
Katherine Oien, OTD, OTR/L, MS is a Pediatric Occupational Therapist provider in Santa Ana, CA (NPI 1881148021).
Provider details
- NPI number
- 1881148021
- Entity type
- Individual
- Primary specialty
- Pediatric Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTD, OTR/L, MS
- Sex
- Female
- Sole proprietor
- No
- License
- OT16344 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 16782 Von Karman Ave Ste 11Irvine, CA 92606-2417Phone: (714) 928-2899
Registry dates
- Enumerated
- 2016-08-04
- Last updated
- 2023-01-09
- Certified
- 2020-10-29
Frequently asked questions
- What is Katherine Oien's NPI number?
- Katherine Oien's National Provider Identifier (NPI) is 1881148021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Oien's specialty?
- Katherine Oien is listed in the NPPES registry with a primary specialty of Pediatric Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Katherine Oien located?
- Katherine Oien's practice location on file with NPPES is 200 W Santa Ana Blvd Ste 100, Santa Ana, CA 92701-4134.
- What is Katherine Oien's phone number?
- The practice phone number listed in the NPPES registry for Katherine Oien is (714) 928-2899.
- Is Katherine Oien's NPI active?
- Yes — Katherine Oien's NPI (1881148021) is active in the NPPES registry as of the last update on 2023-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.