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

MS. Dianna Elizabeth Marrero, FNP-C

Individual provider Family Nurse Practitioner · NPI 1790547693

MS. Dianna Elizabeth Marrero, FNP-C is a Nurse Practitioner in Walla Walla, Washington. Qualified in 2023, 3 years ago. Practices with Providence Health and Services - Washington, a 264-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
3
Licensed in
WA
In the registry since
2024
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

1111 S 2nd Ave
Walla Walla, WA 99362-4118
Phone: (509) 897-3700
Fax: (509) 897-8589
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP61521106 (WA)

Record details

NPI number1790547693
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-C
Sole proprietorNo
NPI enumeratedJanuary 25, 2024
Last updated in NPPESDecember 9, 2024
Certification dateDecember 9, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 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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