NPPES file of Aug 9, 2026

Katherine Newberg, ARNP

Family Nurse Practitioner · Bainbridge Island, WA

Katherine Newberg, ARNP is a family nurse practitioner with a practice address in Bainbridge Island, Washington, and NPI 1174282503, issued on Dec 13, 2021. Check the license (Washington AP61249291, 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
1174282503
Name
Katherine Newberg
Credential
ARNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP61249291 WA
Self-reported in NPPES; status is on the state search
Practice location
1173 Madison Ave N, Bainbridge Island, WA 98110
Phone
(360) 377-3776
Enumerated
Dec 13, 2021
Record last updated
Oct 31, 2024
Fax
(877) 805-9505
Medicare enrollment
Enrolled (PECOS I20220627000645); 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 1173 Madison Ave N

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

  1. Melanie UnderwoodFamily Nurse Practitioner1023733326

Verify Katherine Newberg 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 AP61249291
    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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68% fewer Medicare Part D claims than the average family nurse practitioner in 2024

417 Medicare Part D claims for 86 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Katherine Newberg417
  2. Specialty average1,305

Most prescribed

  1. Amlodipine Besylate30 claims
  2. Atorvastatin Calcium22 claims
  3. Levothyroxine Sodium20 claims
  4. Losartan Potassium17 claims
  5. Lisinopril13 claims
  6. Metoprolol Succinate13 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. Chymiymattymd LLCPoulsbo, WA

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

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

Katherine Newberg, ARNP 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 2021, is newer than 73% of them.

  • NPI issued2021 · 73% of these records are older, 22% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2021 · median 2018 among the 2,116 with a school on file
  • Record last updated2024 · 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).

8 family nurse practitioner records list a practice address in Bainbridge Island

They are 8 of the 482 NPPES records with a practice address in Bainbridge Island, and 3,781 family nurse practitioner records in Washington.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Alexis Carlson, APRNBainbridge Island, WA 981101003658543
  2. Erica Hickson, ARNPBainbridge Island, WA 981101649680695
  3. Bonnie Lash, FNPBainbridge Island, WA 981101235307737
  4. Linda Pedersen, MNARNPBainbridge Island, WA 981101164572590
  5. Melanie UnderwoodBainbridge Island, WA 981101023733326
  6. Sandra Wieland, PHD, ARNPBainbridge Island, WA 981101497149546
  7. Jennifer WishinskiBainbridge Island, WA 981101396252326
  8. Amelia Beckstead, ARNPSeattle, WA 981091487369641

Common questions

What is Katherine Newberg, ARNP's NPI number?

Katherine Newberg, ARNP's National Provider Identifier (NPI) is 1174282503, issued on Dec 13, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Newberg, ARNP located?

The NPPES record lists a practice address at 1173 Madison Ave N, Bainbridge Island, WA, 98110. Phone: (360) 377-3776. Providers update this record themselves, so call before visiting.

How can I verify Katherine Newberg, ARNP's license?

NPPES lists Washington license number AP61249291, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Katherine Newberg, ARNP prescribe under Medicare Part D?

In 2024, Katherine Newberg, ARNP had 417 Medicare Part D claims for 86 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.