YI JAU KO MA, OTR/L
NPI 1538704127
Occupational Therapist in Perris, CA

Active since November 07, 2019Accepts Medicare Assignment
975 WEST MORGAN ST., PERRIS, CA 92571(951) 940-6100 Get Directions Write a Review

NPPES record last updated: January 30, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Jan 30, 2026, Nov 24, 2019, Nov 7, 2019 (3 updates tracked since 2019).

About Yi Jau Ko Ma, Otr/l NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

YI JAU KO MA, OTR/L (NPI 1538704127) is an individual occupational therapist in Perris, California, licensed in California (20494) and active in the NPI registry since November 2019. She maintains a secondary practice location in Murrieta and is a graduate of Other (2019).

NPPES Registry Identity

NPI1538704127
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameYI JAU KOCredential: MA, OTR/L
Location Address975 WEST MORGAN ST.Perris, CA 92571-3103
Mailing Address975 West Morgan St.Perris, CA 92571-3103 · (951) 940-6100
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateNovember 7, 2019
Last NPPES UpdateJanuary 30, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 30, 2026
NPI 1538704127 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License Licensed in CA · 20494
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
975 WEST MORGAN ST., Perris, CA 92571

Other Names 1

Other Name (5)Betty Yijau Ko

Secondary Practice Location 1

Location 141421 Date St Ste 101Murrieta, CA 92562-7079 · Phone (855) 454-3784

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Yi Jau Ko Ma, Otr/l is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2769911247
PECOS Enrollment IDI20250129000359

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Yi Jau Ko's NPI number?

The NPI number for Yi Jau Ko is 1538704127. It was assigned to this individual provider in the NPPES registry on November 7, 2019. The provider is also known as Betty Yijau Ko.

Where is Yi Jau Ko located?

Yi Jau Ko practices at 975 West Morgan St., Perris, CA 92571. The listed phone number is (951) 940-6100.

What is Yi Jau Ko's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Yi Jau Ko enrolled in Medicare?

Yes. Yi Jau Ko is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Yi Jau Ko was last updated on January 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.