Caroline Stewart Walker, RN
Nurse Practitioner · Seattle, WA
Caroline Stewart Walker, RN is a nurse practitioner with a practice address in Seattle, Washington, and NPI 1598323354, issued on Jun 5, 2019. Check the license (Washington AP61059001, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Caroline Stewart Walker
- Credential
- RN
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- AP61059001 WA
RN00155539 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1536 N 115TH St Ste 130, Seattle, WA 98133
- Phone
- (206) 598-3344
- Enumerated
- Jun 5, 2019
- Record last updated
- Apr 12, 2023
- Fax
- (206) 598-1250
- Medicare enrollment
- Enrolled (PECOS I20220118001511); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 2,308 in Washington → Look up another NPI →
Also registered at 1536 N 115TH St Ste 130
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Caroline Stewart Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61059001Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average nurse practitioner in 2024
306 Medicare Part D claims for 94 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Baclofen66 claims
- Pregabalin32 claims
- Dalfampridine Er14 claims
- Duloxetine Hcl13 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- 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).
Caroline Stewart Walker among 2,308 nurse practitioner records in Washington
Caroline Stewart Walker, RN 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 2019, is newer than 62% of them.
- NPI issued2019 · 62% of these records are older, 32% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2020 · 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.
All 2,308 in Washington → Every provider in Seattle → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Carolyn Anderson, ARNPSeattle, WA 981331205116860
- Nandi Brumidge, FNP-BCSeattle, WA 981331932539137
- Anne Croghan, ARNPSeattle, WA 981331912978768
- Winnie Deechakawan-Miller, PHD, DNP, ARNPSeattle, WA 981331992195275
- Michaelene Deelstra, ARNPSeattle, WA 981331194809814
- Cynthia Downs, A.R.N.P.Seattle, WA 981331689615072
- Sarah Dumke, ARNPSeattle, WA 981331144349218
- Alan Greenbaum, ARNP NURSE PRACTITIOSeattle, WA 981331467545632
Common questions
What is Caroline Stewart Walker, RN's NPI number?
Caroline Stewart Walker, RN's National Provider Identifier (NPI) is 1598323354, issued on Jun 5, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Stewart Walker, RN located?
The NPPES record lists a practice address at 1536 N 115TH St Ste 130, Seattle, WA, 98133. Phone: (206) 598-3344. Providers update this record themselves, so call before visiting.
How can I verify Caroline Stewart Walker, RN's license?
NPPES lists Washington license number AP61059001, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Caroline Stewart Walker, RN prescribe under Medicare Part D?
In 2024, Caroline Stewart Walker, RN had 306 Medicare Part D claims for 94 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Caroline Stewart Walker, RN's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.