Yi Jau Ko, MA, OTR/L

Primary specialty

Occupational TherapistTaxonomy code 225X00000X

License

20494 Issued in CA

Practice address

975 West Morgan St.
Perris, CA 92571-3103

Phone

(951) 940-6100

NPI assigned

Nov 7, 2019

Last updated

Jan 30, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other names 1

• Betty Yijau Ko Other name

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Specialty

Occupational Therapist in Private Practice

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

New Life Physical Therapy Services PCGroup PAC ID 7214207125, 94 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Arts

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• New Life Physical Therapy Services, PC

  • Physical Therapist
  • Beverly Hills, CA
  • NPI 1285160788

  Occupational Therapist

  Medicare reassignment Care Compare group NPD
• Littlefield Physical Therapy, Inc.

  • Point of Service
  • Murrieta, CA
  • NPI 1548694961
  NPD
• Littlefield Physical Therapy, Inc.

  • Physical Therapist
  • Murrieta, CA
  • NPI 1467506691
  NPD (past)
• Val Verde Unified School District

  • Local Education Agency (LEA)
  • Perris, CA
  • NPI 1144427626
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1573084800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1538704127",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "975 WEST MORGAN ST.",
            "city": "PERRIS",
            "state": "CA",
            "postal_code": "925713103",
            "telephone_number": "951-940-6100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "975 WEST MORGAN ST.",
            "city": "PERRIS",
            "state": "CA",
            "postal_code": "925713103",
            "telephone_number": "951-940-6100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "41421 Date St Ste 101",
            "address_purpose": "LOCATION",
            "city": "Murrieta",
            "state": "CA",
            "postal_code": "925627079",
            "country_code": "US",
            "telephone_number": "855-454-3784",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KO",
        "first_name": "YI JAU",
        "credential": "MA, OTR/L",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-11-07",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "CA",
            "license": "20494",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "BETTY",
            "last_name": "KO",
            "middle_name": "YIJAU",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

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• Katie Knarreborg
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• KND Development 59 LLC
• Heather Margaret Knight
• Aysin Koca, AMFT
• Joseph J Kozinski, MFT
• Marcus Kujawa, PRC
• Kwon DDS Professional Corporation (Mead Valley Community Dental Clinic)
• Labor of Love Elderly Residential Care

• Occupational Therapist in Perris, CA
• Providers in Perris, CA by specialty
• Occupational Therapist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 30, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.