Individual provider Active NPI

Treva Ruth Harmon

  • Addiction (Substance Use Disorder) Counselor
  • Yakima, WA
National Provider Identifier
1205314119
Registry record updated Jul 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X
License
CP00000875 Issued in WA
Practice address
315 N 2ND St
Yakima, WA 98901-2334
Phone
(509) 469-9366
NPI assigned
Aug 2, 2018
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 8, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction (Substance Use Disorder) CounselorGroup: 193400000X SINGLE SPECIALTY GROUP 101YA0400X CP00000875 WA Primary

Addresses

Primary practice location

315 N 2ND St
Yakima, WA 98901-2334

Mailing address

PO Box 217
Selah, WA 98942-0217
Phone (509) 457-0990

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
CP00000875WAMDAddiction (Substance Use Disorder) Counselor

Practice roles

OrganizationSpecialtyStatusNew patients
Sundown M Ranch PastSince Jan 17, 2021 Accepting new patients
Sundown M Ranch Past Accepting new patients

Organizations & group practices 2

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": "1533168000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783468800000",
    "number": "1205314119",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 217",
            "city": "SELAH",
            "state": "WA",
            "postal_code": "989420217",
            "telephone_number": "509-457-0990"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "315 N 2ND ST",
            "city": "YAKIMA",
            "state": "WA",
            "postal_code": "989012334",
            "telephone_number": "509-469-9366"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARMON",
        "first_name": "TREVA",
        "middle_name": "RUTH",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-08-02",
        "last_updated": "2026-07-08",
        "certification_date": "2026-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "WA",
            "license": "CP00000875",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Yakima, WA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.