Individual provider Active NPI

David Y Chan, OTR/L

  • Occupational Therapist
  • Irvine, CA
National Provider Identifier
1720304405
Registry record updated Apr 20, 2010
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
8053 Issued in CA
Practice address
81 Waterman
Irvine, CA 92602-1654
Phone
(714) 760-1986
NPI assigned
Apr 20, 2010
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 20, 2010

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Occupational Therapist 225X00000X 8053 CA Primary

Addresses

Primary practice location

81 Waterman
Irvine, CA 92602-1654

Mailing address

81 Waterman
Irvine, CA 92602-1654

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110127000385 CA Practitioner - Occupational Therapist in Private Practice 4880873587 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Occupational Therapist in Private Practice
Education
Other, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mobile Therapy Specialists Inc.Group PAC ID 9638594898, 33 clinicians

Practice addresses (Care Compare)

514 8TH St
Huntington Beach, CA 92648-4631
Phone (949) 529-1567

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Mobile Therapy Specialists Inc CurrentSince Oct 9, 2025 Accepting new patients

Organizations & group practices 1

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

NPI Registry JSON

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

{
    "created_epoch": "1271721600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1271721600000",
    "number": "1720304405",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "81 WATERMAN",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926021654"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "81 WATERMAN",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926021654",
            "telephone_number": "714-760-1986"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHAN",
        "first_name": "DAVID",
        "middle_name": "Y",
        "credential": "OTR/L",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-04-20",
        "last_updated": "2010-04-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "CA",
            "license": "8053",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Irvine, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 20, 2010; 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.