Yi Jau Ko, MA, OTR/L
NPI 1538704127 · Occupational Therapist · Perris, CA
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yi Jau Ko, MA, OTR/L is a Occupational Therapist provider in Perris, CA (NPI 1538704127).
Provider details
- NPI number
- 1538704127
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- MA, OTR/L
- Sex
- Female
- Sole proprietor
- No
- License
- 20494 (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
6 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)
- 41421 Date St Ste 101Murrieta, CA 92562-7079Phone: (855) 454-3784
Registry dates
- Enumerated
- 2019-11-07
- Last updated
- 2026-01-30
- Certified
- 2026-01-30
Frequently asked questions
- What is Yi Jau Ko's NPI number?
- Yi Jau Ko's National Provider Identifier (NPI) is 1538704127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yi Jau Ko's specialty?
- Yi Jau Ko is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Yi Jau Ko located?
- Yi Jau Ko's practice location on file with NPPES is 975 West Morgan St., Perris, CA 92571-3103.
- What is Yi Jau Ko's phone number?
- The practice phone number listed in the NPPES registry for Yi Jau Ko is (951) 940-6100.
- Does Yi Jau Ko accept Medicare?
- Yi Jau Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yi Jau Ko's NPI active?
- Yes — Yi Jau Ko's NPI (1538704127) is active in the NPPES registry as of the last update on 2026-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.