LANDON JAMES WILLIAMSON DNAP
NPI 1326830043
Nurse Anesthetist, Certified Registered in Prosser, WA

Active since May 19, 2025Accepts Medicare Assignment
200 PROSSER HEALTH DR, PROSSER, WA 99350(509) 786-2222 Get Directions Write a Review

NPPES record last updated: May 26, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 26, 2025, May 19, 2025 (2 updates tracked since 2025).

About Landon James Williamson Dnap NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LANDON JAMES WILLIAMSON DNAP (NPI 1326830043) is an individual nurse anesthetist, certified registered in Prosser, Washington, licensed in Washington (AP61682957) and active in the NPI registry since May 2025. He is affiliated with Prosser Memorial Hospital and is a graduate of Other (2025).

NPPES Registry Identity

NPI1326830043
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameLANDON JAMES WILLIAMSONCredential: DNAP
Location Address200 PROSSER HEALTH DRProsser, WA 99350-7832
Mailing Address2812 Sunshine Ridge RdRichland, WA 99352-9301 · (360) 852-6640
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateMay 19, 2025
Last NPPES UpdateMay 26, 20252 updates tracked since enumeration
NPPES CertifiedMay 26, 2025
NPI 1326830043 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License Licensed in WA · AP61682957
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedClinical Nurse SpecialistTaxonomy 364S00000X · License AP61682957 (WA)
200 PROSSER HEALTH DR, Prosser, WA 99350

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Landon James Williamson Dnap is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7315458015
PECOS Enrollment IDI20250618004076

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Prosser Memorial Hospital

Critical Access Hospitals · Prosser, WA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501312
Location723 Memorial StreetProsser, WA 99350 · Benton County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99350 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.99 typical visit price
range $57.27 – $172.80
Typical copayment $32.74 (range $14.31 – $43.20)
Most-billed visit code 99204
Established Patient
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

General Acute Care Hospital (Critical Access)
200 PROSSER HEALTH DR
PROSSER, WA 99350
Nurse Anesthetist, Certified Registered
200 PROSSER HEALTH DR
PROSSER, WA 99350
Pediatrics
200 PROSSER HEALTH DR
PROSSER, WA 99350
General Acute Care Hospital (Critical Access)
200 PROSSER HEALTH DR
PROSSER, WA 99350
Physical Medicine & Rehabilitation
200 PROSSER HEALTH DR
PROSSER, WA 99350
Occupational Therapist
200 PROSSER HEALTH DR
PROSSER, WA 99350
Registered Nurse
200 PROSSER HEALTH DR
PROSSER, WA 99350
Speech-Language Pathologist
200 PROSSER HEALTH DR
PROSSER, WA 99350

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Landon Williamson's NPI number?

The NPI number for Landon Williamson is 1326830043. It was assigned to this individual provider in the NPPES registry on May 19, 2025.

Where is Landon Williamson located?

Landon Williamson practices at 200 Prosser Health Dr, Prosser, WA 99350. The listed phone number is (509) 786-2222.

What is Landon Williamson's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Landon Williamson enrolled in Medicare?

Yes. Landon Williamson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Landon Williamson affiliated with any hospitals?

According to CMS data, Landon Williamson is affiliated with Prosser Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Landon Williamson was last updated on May 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.