NPPES file of Aug 9, 2026

Katie M. Cherniwchan, ARNP

Nurse Practitioner · Seattle, WA

Katie M. Cherniwchan, ARNP is a nurse practitioner with a practice address in Seattle, Washington, and NPI 1013799923, issued on Oct 16, 2023. Check the license (Washington AP61493559, 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
1013799923
Name
Katie M. Cherniwchan
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP61493559 WA
Self-reported in NPPES; status is on the state search
Practice location
1959 NE Pacific St, Seattle, WA 98195
Phone
(206) 520-5000
Enumerated
Oct 16, 2023
Record last updated
Oct 16, 2023
Medicare enrollment
Enrolled (PECOS I20240205003760); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 1959 NE Pacific St

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

  1. Benjamin AaronsonPsychologist1497108880
  2. Laith Abandeh, MDPediatric Radiology Physician1609404243
  3. Rebecca AbayInternal Medicine Physician1528565520
  4. Gifti Abbo, MDStudent in an Organized Health Care Education/Training Program1316688989
  5. Nandini AbburiNeurology Physician1730618349
  6. Mohamed AbdelmotlebDiagnostic Radiology Physician1134892656

Verify Katie M. Cherniwchan 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 AP61493559
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

92% fewer Medicare Part D claims than the average nurse practitioner in 2024

85 Medicare Part D claims for 24 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Katie Cherniwchan85
  2. Specialty average1,109

Most prescribed

  1. Gabapentin14 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.

Bills Medicare through one group practice

  1. The Association OF University PhysiciansSeattle, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katie M. Cherniwchan among 2,308 nurse practitioner records in Washington

Katie M. Cherniwchan, ARNP is one of 2,308 nurse practitioner records with a practice address in Washington. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 85% of them.

  • NPI issued2023 · 85% of these records are older, 9% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2023 · median 2018 among the 1,301 with a school on file
  • Record last updated2023 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

569 nurse practitioner records list a practice address in Seattle

They are 569 of the 41,956 NPPES records with a practice address in Seattle, and 2,308 nurse practitioner records in Washington.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Elizabeth Bayley, ARNPSeattle, WA 981951861408825
  2. Kevin CarrabineSeattle, WA 981951508941303
  3. Mary CatonSeattle, WA 981951417032210
  4. Margaret ColemanSeattle, WA 981951134219090
  5. Carissa Cross, ARNPSeattle, WA 981951962510248
  6. Diane DerboghosianSeattle, WA 981951861577660
  7. Carrie Graham, NPSeattle, WA 981951609898881
  8. Linda Marriott, ARNPSeattle, WA 981951427084458

Common questions

What is Katie M. Cherniwchan, ARNP's NPI number?

Katie M. Cherniwchan, ARNP's National Provider Identifier (NPI) is 1013799923, issued on Oct 16, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Katie M. Cherniwchan, ARNP located?

The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.

How can I verify Katie M. Cherniwchan, ARNP's license?

NPPES lists Washington license number AP61493559, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Katie M. Cherniwchan, ARNP prescribe under Medicare Part D?

In 2024, Katie M. Cherniwchan, ARNP had 85 Medicare Part D claims for 24 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.