Individual provider Active NPI

Margaret Mary Chinn

  • Pediatric Occupational Therapist
  • Oakland, CA
National Provider Identifier
1669311338
Registry record updated Mar 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Occupational TherapistTaxonomy code 225XP0200X
License
14350 Issued in CA
Practice address
915 54TH St
Oakland, CA 94608-3142
Phone
(510) 879-5003
NPI assigned
Mar 26, 2026
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 26, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Occupational Therapist 225XP0200X 14350 CA Primary

Addresses

Primary practice location

915 54TH St
Oakland, CA 94608-3142

Mailing address

214 Cypress St Apt J
Alameda, CA 94501-1882
Phone (415) 420-6349

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Oakland Unified School District PastSince Sep 11, 2022 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": "1774483200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774483200000",
    "number": "1669311338",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "214 CYPRESS ST APT J",
            "city": "ALAMEDA",
            "state": "CA",
            "postal_code": "945011882",
            "telephone_number": "415-420-6349"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "915 54TH ST",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946083142",
            "telephone_number": "510-879-5003"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHINN",
        "first_name": "MARGARET",
        "middle_name": "MARY",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-03-26",
        "last_updated": "2026-03-26",
        "certification_date": "2026-03-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225XP0200X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist, Pediatrics",
            "state": "CA",
            "license": "14350",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Oakland, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.