John Marrin, ARNP
NPI 1861026742 · Family Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Marrin, ARNP is a Family Nurse Practitioner provider in Seattle, WA (NPI 1861026742).
Provider details
- NPI number
- 1861026742
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- RN60749075 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 145 | 41 |
| Levothyroxine Sodium | 57 | 13 |
| Amlodipine Besylate | 57 | 18 |
| Empagliflozinbrand: Jardiance | 54 | 12 |
| Metformin Hclbrand: Metformin Hcl Er | 51 | — |
| Metformin Hcl | 47 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-02-28
- Last updated
- 2020-06-18
- Certified
- 2020-06-18
Frequently asked questions
- What is John Marrin's NPI number?
- John Marrin's National Provider Identifier (NPI) is 1861026742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Marrin's specialty?
- John Marrin is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Marrin located?
- John Marrin's practice location on file with NPPES is 8720 14th Ave S, Seattle, WA 98108-4807.
- What is John Marrin's phone number?
- The practice phone number listed in the NPPES registry for John Marrin is (206) 762-3730.
- Does John Marrin accept Medicare?
- John Marrin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Marrin's NPI active?
- Yes — John Marrin's NPI (1861026742) is active in the NPPES registry as of the last update on 2020-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.