Individual provider Active NPI

Walter C Trapp, D.C.

  • Chiropractor
  • Portland, OR
National Provider Identifier
1720035579
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
ChiropractorTaxonomy code 111N00000X
License
271642 Issued in OR
Practice address
15938 SE Division St
Portland, OR 97236-2059
Phone
(503) 761-9648
Fax
(503) 761-6876
NPI assigned
May 27, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Chiropractor 111N00000X 271642 OR Primary

Addresses

Primary practice location

15938 SE Division St
Portland, OR 97236-2059

Mailing address

15938 SE Division St
Portland, OR 97236-2059
Phone (503) 761-9648

Other identifiers 1

IdentifierTypeStateIssuer
270157MedicaidOR

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

State licenses

LicenseStateTypeSpecialty
271642ORMDChiropractor

Practice roles

OrganizationSpecialtyStatusNew patients
Alternative Health Care & Chiropractic Inc. Chiropractor Past 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": "1148688000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1720035579",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15938 SE DIVISION ST",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972362059",
            "telephone_number": "503-761-9648",
            "fax_number": "503-761-6876"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15938 SE DIVISION ST",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972362059",
            "telephone_number": "503-761-9648",
            "fax_number": "503-761-6876"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TRAPP",
        "first_name": "WALTER",
        "middle_name": "C",
        "name_prefix": "Dr.",
        "credential": "D.C.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-27",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "OR",
            "license": "271642",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "270157",
            "state": "OR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, OR

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.