NPPES file of Aug 9, 2026

Katherine Stefan, FNP

Family Nurse Practitioner · Vancouver, WA

Katherine Stefan, FNP is a family nurse practitioner with a practice address in Vancouver, Washington, and NPI 1255374823, issued on Jun 13, 2006. Check the license (Washington AP30006108, 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
1255374823
Name
Katherine Stefan
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP30006108 WA
Self-reported in NPPES; status is on the state search
Practice location
700 NE 87TH Ave, Vancouver, WA 98664
Phone
(360) 397-1500
Enumerated
Jun 13, 2006
Record last updated
Aug 6, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(360) 604-1771
Medicaid ID
9632969 WA
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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Also registered at 700 NE 87TH Ave

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

  1. Kathleen Adkison, DNP-FNPFamily Nurse Practitioner1043160500
  2. Kirstie Anderson, D.P.T.Physical Therapist1023486396
  3. Lauren Andronici, CNMAdvanced Practice Midwife1356396709
  4. Susan Arnold-Edgar, PA-CPhysician Assistant1023057817
  5. Vincent Au, M.D.Internal Medicine Physician1104112051
  6. Jennifer Austin, MDPediatrics Physician1326087503

Verify Katherine Stefan 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 AP30006108
    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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3.5 times the Medicare Part D claims of the average family nurse practitioner in 2024

4,615 Medicare Part D claims for 823 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Katherine Stefan4,615
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium485 claims
  2. Metoprolol Succinate443 claims
  3. Eliquis389 claims
  4. Losartan Potassium287 claims
  5. Furosemide268 claims
  6. Metoprolol Tartrate218 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.

Katherine Stefan among 3,781 family nurse practitioner records in Washington

Katherine Stefan, FNP is one of 3,781 family nurse practitioner records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 84% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2018 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

156 family nurse practitioner records list a practice address in Vancouver

They are 156 of the 10,772 NPPES records with a practice address in Vancouver, and 3,781 family nurse practitioner records in Washington.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Jillian Bain, RN, BS, MS, FNP-BCVancouver, WA 986641700078938
  2. Elizabeth Docea, NPVancouver, WA 986641669773982
  3. Amanda KerberVancouver, WA 986641265670129
  4. Christie Kratovil, FNP-CVancouver, WA 986641306155270
  5. Adrian Krutz, FNPVancouver, WA 986641245674498
  6. Derk Maniscalco, DNPVancouver, WA 986641467764647
  7. Jordan Mount, CRNPVancouver, WA 986641750613980
  8. Sandy Niehm, FNPVancouver, WA 986641215979430

Common questions

What is Katherine Stefan, FNP's NPI number?

Katherine Stefan, FNP's National Provider Identifier (NPI) is 1255374823, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Stefan, FNP located?

The NPPES record lists a practice address at 700 NE 87TH Ave, Vancouver, WA, 98664. Phone: (360) 397-1500. Providers update this record themselves, so call before visiting.

How can I verify Katherine Stefan, FNP's license?

NPPES lists Washington license number AP30006108, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine Stefan, FNP prescribe under Medicare Part D?

In 2024, Katherine Stefan, FNP had 4,615 Medicare Part D claims for 823 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.