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

Sarah Dinneen Anderson, ARNP

Individual provider Family Nurse Practitioner · NPI 1659118255

Sarah Dinneen Anderson, ARNP is a Nurse Practitioner in Mattawa, Washington. Graduated from Washington University School of Medicine in 2024, 2 years ago. Practices with Columbia Basin Health Association, a 43-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
2
Trained at
Washington University School of Medicine
Licensed in
WA
In the registry since
2024
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Practice location Address checks out

601 Government Rd
Mattawa, WA 99349-5120
Phone: (509) 488-5256
Fax: (509) 488-9939
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP61550139 (WA)

Record details

NPI number1659118255
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedJuly 10, 2024
Last updated in NPPESJuly 31, 2024
Certification dateJuly 31, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2024 (2 years in practice)
Group practice Columbia Basin Health Association — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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