Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Leikin Louise Louderback, ARNP

Individual provider Family Nurse Practitioner · NPI 1063293561

MS. Leikin Louise Louderback, ARNP is a Nurse Practitioner in Walla Walla, Washington. Qualified in 2023, 3 years ago. Practices with Providence Health and Services - Washington, a 264-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
3
Licensed in
WA
In the registry since
2023
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

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Practice location Address checks out

380 Chase Ave
Walla Walla, WA 99362-2924
Phone: (509) 897-3333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP61471420 (WA)

Record details

NPI number1063293561
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorYes
NPI enumeratedOctober 10, 2023
Last updated in NPPESMarch 20, 2025
Certification dateMarch 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Providence Health And Services - Washington — 264 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients116
Services billed 172 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Travel and Lodging $1,131 3 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Dayton General Hospital Hospital · Dayton, WA
  • Providence St Mary Medical Center Hospital · Walla Walla, WA

Colleagues at Providence Health and Services - Washington

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 264 clinicians in the practice; 12 are shown here.

Other providers in Walla Walla