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

Graycen Duffy, ARNP

Individual provider Family Nurse Practitioner · NPI 1851839682

Graycen Duffy, ARNP is a Nurse Practitioner in Walla Walla, Washington. Qualified in 2016, 10 years ago. Practices with Providence Health and Services - Washington, a 264-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
10
Licensed in
WA
In the registry since
2017
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

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Practice location Address checks out

380 Chase Ave
Walla Walla, WA 99362-2924
Phone: (509) 897-3700
Fax: (509) 897-5575
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1111 S 2nd Ave, Walla Walla, WA 99362-4118 — (509) 897-3700

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP 60725057 (WA)

Record details

NPI number1851839682
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedJanuary 31, 2017
Last updated in NPPESMay 11, 2021
Certification dateMay 11, 2021
Mailing address380 Chase Ave, Walla Walla, WA 99362-2924

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 Providence Health And Services - Washington — 264 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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