NPPES file of Aug 9, 2026

William Scott Koenig, APRN

Psychiatric/Mental Health Nurse Practitioner · Chehalis, WA

William Scott Koenig, APRN is a psychiatric/mental health nurse practitioner with a practice address in Chehalis, Washington, and NPI 1548194640, issued on Jun 11, 2026. Check the license (Washington ARNP.AP.70141126-NP, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548194640
Name
William Scott Koenig
Credential
APRN
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
ARNP.AP.70141126-NP WA
Self-reported in NPPES; status is on the state search
Practice location
409 S Market Blvd Ste 9, Chehalis, WA 98532
Phone
(360) 827-5362
Enumerated
Jun 11, 2026
Record last updated
Jun 11, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest psychiatric/mental health nurse practitioner records → All 1,875 in Washington → Look up another NPI →

Verify William Scott Koenig in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license ARNP.AP.70141126-NP    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Washington license search

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William Scott Koenig among 1,875 psychiatric/mental health nurse practitioner records in Washington

William Scott Koenig, APRN is one of 1,875 psychiatric/mental health nurse practitioner records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2026, is newer than 98% of them.

  • NPI issued2026 · 98% of these records are older, 0% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 48% of these records are
  • Record last updated2026 · 28% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 psychiatric/mental health nurse practitioner records list a practice address in Chehalis

They are 7 of the 705 NPPES records with a practice address in Chehalis, and 1,875 psychiatric/mental health nurse practitioner records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,875 in Washington → Every provider in Chehalis → Psychiatric/Mental Health Nurse Practitioner nationwide →

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Bernice FomunungChehalis, WA 985321225679368
  2. Ezra Foss, NP-CChehalis, WA 985321073877155
  3. Amber Kelly, FNPChehalis, WA 985321437637048
  4. Jillian Lotito, PMHNPChehalis, WA 985321962828715
  5. Paulo Vilela Rodrigues, PHD, MSN, RN, BS.Chehalis, WA 985321033006150
  6. Aimee Wagonblast, ARNPChehalis, WA 985321992876478
  7. Lisa Ehrlichman, NPCentralia, WA 985311861758591
  8. Luke Greene, PMHNPCentralia, WA 985311134423056

Common questions

What is William Scott Koenig, APRN's NPI number?

William Scott Koenig, APRN's National Provider Identifier (NPI) is 1548194640, issued on Jun 11, 2026. An NPI identifies a provider in billing; it is not a license.

Where is William Scott Koenig, APRN located?

The NPPES record lists a practice address at 409 S Market Blvd Ste 9, Chehalis, WA, 98532. Phone: (360) 827-5362. Providers update this record themselves, so call before visiting.

How can I verify William Scott Koenig, APRN's license?

NPPES lists Washington license number ARNP.AP.70141126-NP, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.