Landon James Williamson, DNAP

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

AP61682957 Issued in WA

Practice address

200 Prosser Health Dr
Prosser, WA 99350-7832

Phone

(509) 786-2222

NPI assigned

May 19, 2025

Last updated

May 26, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in WA

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Prosser Public Hospital District of Benton CountyGroup PAC ID 6709787872, 111 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Prosser Memorial Hospital Hospital, Prosser, WA, CCN 501312

Medicare enrollment (NPD)

Enrolled

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.

• Prosser Public Hospital District of Benton County

  dba Prosser Memorial Health

  • Critical Access Hospital
  • Prosser, WA
  • NPI 1306897681
  Medicare reassignment Care Compare group NPD
• Prosser Public Hospital District of Benton County

  dba Prosser Memorial Health Spine Clinic

  • Specialist
  • Walla Walla, WA
  • NPI 1518770155
  NPD
• Prosser Public Hospital District of Benton County

  dba Prosser Specialty Clinic

  • Gastroenterology Physician
  • Prosser, WA
  • NPI 1780495978
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Prosser Public Hospital District of Benton County

  dba Prosser Memorial Health

  • Critical Access Hospital
  • Prosser, WA
  • NPI 1306897681
  Care Compare affiliation

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

{
    "created_epoch": "1747612800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748217600000",
    "number": "1326830043",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2812 SUNSHINE RIDGE RD",
            "city": "RICHLAND",
            "state": "WA",
            "postal_code": "993529301",
            "telephone_number": "360-852-6640"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 PROSSER HEALTH DR",
            "city": "PROSSER",
            "state": "WA",
            "postal_code": "993507832",
            "telephone_number": "509-786-2222"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "LANDON",
        "middle_name": "JAMES",
        "credential": "DNAP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-05-19",
        "last_updated": "2025-05-26",
        "certification_date": "2025-05-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "364S00000X",
            "taxonomy_group": "",
            "desc": "Clinical Nurse Specialist",
            "state": "WA",
            "license": "AP61682957",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "WA",
            "license": "AP61682957",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Robert J Weber, DDS
• Emma Weis
• Cortney Jean White
• Melinda White, LMP
• William Harrison Smith (Valley Anesthesia Service)
• Wilson Family Eyecare PS
• Robert L Wilson, OD
• Stefanie Jean Wisse, RD
• Rebecca Wray
• Yakima Valley Farm Workers Clinic (Valley Vista Medical Group)

• Certified Registered Nurse Anesthetist in Prosser, WA
• Providers in Prosser, WA by specialty
• Certified Registered Nurse Anesthetist in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 26, 2025; 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.