NPPES file of Aug 9, 2026

Katherine L. Byron, ARNP

Nurse Practitioner · Everett, WA

Katherine L. Byron, ARNP is a nurse practitioner with a practice address in Everett, Washington, and NPI 1255469284, issued on Mar 1, 2007. Check the license (Washington AP30007464, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255469284
Name
Katherine L. Byron
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP30007464 WA
Self-reported in NPPES; status is on the state search
Practice location
1330 Rockefeller Ave, Everett, WA 98201
Phone
(425) 261-4925
Enumerated
Mar 1, 2007
Record last updated
May 22, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(425) 261-4932
Medicaid ID
1006178 WA
Medicare enrollment
Enrolled (PECOS I20180625002961); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1330 Rockefeller Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mastaneh Ahmadi-Kashani, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1275768186
  2. Luis Fernando Alberton, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1588051494
  3. Robert Andre, MDGynecology Physician1275508244
  4. Joseph Austin, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1134189699
  5. Vivek Bhatia, M.D., M.S.Cardiovascular Disease Physician1699094359
  6. Susan Blue, ARNPNurse Practitioner1265543839

Verify Katherine L. Byron 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 AP30007464
    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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69% more Medicare Part D claims than the average nurse practitioner in 2024

1,876 Medicare Part D claims for 594 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Katherine Byron1,876
  2. Specialty average1,109

Most prescribed

  1. Rosuvastatin Calcium213 claims
  2. Clopidogrel203 claims
  3. Atorvastatin Calcium173 claims
  4. Metoprolol Succinate146 claims
  5. Isosorbide Mononitrate Er107 claims
  6. Nitroglycerin87 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $311.38

4 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Byron$311.38
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Sanford Medical Center FargoFargo, ND · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

118 nurse practitioner records list a practice address in Everett

They are 118 of the 7,246 NPPES records with a practice address in Everett, and 2,308 nurse practitioner records in Washington.

Other nurse practitioner records in Washington

  1. Arthuro AbbidoChelan Falls, WA1396412888
  2. Saada AbdelaSeattle, WA1881474716
  3. Glenda Abercrombie, ARNP, FNP-CYakima, WA1114001369
  4. Hemlal Acharya, ARNP PHMNP-BC, MSAuburn, WA1659146231
  5. Marja Adair, ARNPRichland, WA1659818318
  6. Nancy Adam, A.R.N.P.Poulsbo, WA1790835684
  7. James Adams, NPSpokane, WA1245828227
  8. Jessica Adams, ARNPBattle Ground, WA1316332463
  9. Pramoj Adhikari, DNP, RN, FNP - ( C).Everett, WA1396315446
  10. Girma AdmasuSpokane Valley, WA1568023547

Common questions

What is Katherine L. Byron, ARNP's NPI number?

Katherine L. Byron, ARNP's National Provider Identifier (NPI) is 1255469284, issued on Mar 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Katherine L. Byron, ARNP located?

The NPPES record lists a practice address at 1330 Rockefeller Ave, Everett, WA, 98201. Phone: (425) 261-4925. Providers update this record themselves, so call before visiting.

How can I verify Katherine L. Byron, ARNP's license?

NPPES lists Washington license number AP30007464, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine L. Byron, ARNP prescribe under Medicare Part D?

In 2024, Katherine L. Byron, ARNP had 1,876 Medicare Part D claims for 594 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.