Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Claire Ellen Grigsby, MSN, FNP-C

Individual provider Family Nurse Practitioner · NPI 1578018404

Claire Ellen Grigsby, MSN, FNP-C is a Nurse Practitioner in Seattle, Washington. Qualified in 2016, 10 years ago. Practices with The Association of University Physicians, a 3,459-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
10
Licensed in
WA
In the registry since
2016
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

825 Eastlake Ave E
Seattle, WA 98109-1023
Phone: (206) 520-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence AP60695746 (WA)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence AP60695746 (WA)

Record details

NPI number1578018404
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , FNP-C
Sole proprietorNo
NPI enumeratedAugust 21, 2016
Last updated in NPPESMay 11, 2020
Certification dateMay 11, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice The Association Of University Physicians — 3459 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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