John William Marrin, ARNP
Family Nurse Practitioner · Seattle, WA
John William Marrin, ARNP is a family nurse practitioner with a practice address in Seattle, Washington, and NPI 1861026742, issued on Feb 28, 2020. Check the license (Washington 61077450, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John William Marrin
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 61077450 WA
RN60749075 WA
Self-reported in NPPES; status is on the state search - Practice location
- 8720 14TH Ave S, Seattle, WA 98108
- Phone
- (206) 762-3730
- Enumerated
- Feb 28, 2020
- Record last updated
- Jun 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200803003224); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,781 in Washington → Look up another NPI →
Also registered at 8720 14TH Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lisolet Avila AguilarRegistered Dietitian1245609718
- Malini Balakrishnan, M.D.Internal Medicine Physician1902129554
- Laura Blasi, RDRegistered Dietitian1033860069
- Anne Bowers, MDFamily Medicine Physician1124768957
Verify John William Marrin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 61077450Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average family nurse practitioner in 2024
1,454 Medicare Part D claims for 118 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. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium145 claims
- Amlodipine Besylate57 claims
- Levothyroxine Sodium57 claims
- Jardiance54 claims
- Metformin Hcl Er51 claims
- Metformin Hcl47 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
- International Community Health ServicesBellevue, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John William Marrin among 3,781 family nurse practitioner records in Washington
John William Marrin, 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 2020, is newer than 67% of them.
- NPI issued2020 · 67% of these records are older, 27% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2020 · median 2018 among the 2,116 with a school on file
- Record last updated2020 · 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).
663 family nurse practitioner records list a practice address in Seattle
They are 663 of the 41,956 NPPES records with a practice address in Seattle, and 3,781 family nurse practitioner records in Washington.
All 3,781 in Washington → Every provider in Seattle → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Carol AchtmeyerSeattle, WA 981081548371453
- Patricia Cleveland, NP-CSeattle, WA 981081386881225
- Yvonne Eichler, ARNPSeattle, WA 981081437223864
- Suzanne Grischott, ARNPSeattle, WA 981081861502098
- Tara Hayes Constant, ARNPSeattle, WA 981081437669520
- Stephanie Ho, ARNPSeattle, WA 981081679001770
- Ron Kaplan, ARNPSeattle, WA 981081942308531
- Heather Klocke, ARNPSeattle, WA 981081568823748
Common questions
What is John William Marrin, ARNP's NPI number?
John William Marrin, ARNP's National Provider Identifier (NPI) is 1861026742, issued on Feb 28, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John William Marrin, ARNP located?
The NPPES record lists a practice address at 8720 14TH Ave S, Seattle, WA, 98108. Phone: (206) 762-3730. Providers update this record themselves, so call before visiting.
How can I verify John William Marrin, ARNP's license?
NPPES lists Washington license number 61077450, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does John William Marrin, ARNP prescribe under Medicare Part D?
In 2024, John William Marrin, ARNP had 1,454 Medicare Part D claims for 118 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.