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SARAH DINNEEN ANDERSON ARNP
NPI 1659118255
Nurse Practitioner - Family in Mattawa, WA

Active since July 10, 2024PECOS EnrolledAccepts Medicare Assignment
601 GOVERNMENT RD, MATTAWA, WA 99349(509) 488-5256(509) 488-9939 Get Directions Write a Review

NPPES record last updated: July 31, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 31, 2024, Jul 10, 2024 (2 updates tracked since 2024).

About Sarah Dinneen Anderson Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SARAH DINNEEN ANDERSON ARNP (NPI 1659118255) is an individual family provider in Mattawa, Washington, licensed in Washington (AP61550139) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS and is a graduate of Washington University School Of Medicine (2024).

NPPES Registry Identity

NPI1659118255
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameSARAH DINNEEN ANDERSONCredential: ARNP
Location Address601 GOVERNMENT RDMattawa, WA 99349-5120
Mailing Address1515 E Columbia StOthello, WA 99344-1846 · (509) 488-5256 · Fax (509) 488-9939
Phone(509) 488-5256
Fax(509) 488-9939
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 2024
Enumeration DateJuly 10, 2024
Last NPPES UpdateJuly 31, 20242 updates tracked since enumeration
NPPES CertifiedJuly 31, 2024
✔ NPI 1659118255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in WA · AP61550139
601 GOVERNMENT RD, Mattawa, WA 99349
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sarah Dinneen Anderson Arnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698212660
PECOS Enrollment IDI20240808000853
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sarah Anderson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Columbia Basin Health Association
Same address
Federally Qualified Health Center (FQHC)
601 GOVERNMENT WAY
Mattawa, WA 99349
  • Reassigned Medicare billing, Washington enrollment
  • 76 clinicians in this Medicare group
NPI 1710232749 (509) 488-5256

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99349 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KELLY NATALIE BROWN RDH
Dental Hygienist
601 GOVERNMENT RD
MATTAWA, WA 99349
Grant County (509) 488-5256
BIANCA MENDOZA OD
Optometrist
601 GOVERNMENT RD
MATTAWA, WA 99349
Grant County (509) 488-5256
MEGAN PRYCE RDH
Dental Hygienist
601 GOVERNMENT RD
MATTAWA, WA 99349
Grant County (509) 488-5256
NANCY SANTOYO LMHC-A
Counselor
601 GOVERNMENT RD
MATTAWA, WA 99349
Grant County (509) 488-5256
SELEMANI E WAMBUZI PA-C
Physician Assistant (Medical)
601 GOVERNMENT RD
MATTAWA, WA 99349
Grant County (509) 488-5256
MISTY A CHRISTENSEN RDH, EFDA
Dental Hygienist
601 GOVERNMENT RD
MATTAWA, WA 99349
Grant County (509) 688-3811
ERIKA CECILIA RITCHIE
Social Worker (Clinical)
601 GOVERNMENT RD
MATTAWA, WA 99349
Grant County (509) 488-5256

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sarah Anderson's NPI number?

The NPI number for Sarah Anderson is 1659118255. It was assigned to this individual provider in the NPPES registry on July 10, 2024.

Where is Sarah Anderson located?

Sarah Anderson practices at 601 Government Rd, Mattawa, WA 99349. The listed phone number is (509) 488-5256.

What is Sarah Anderson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Sarah Anderson enrolled in Medicare?

Yes. Sarah Anderson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Sarah Anderson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Anderson reassigns Medicare benefits to Columbia Basin Health Association (Mattawa, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sarah Anderson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sarah Anderson accept?

Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Sarah Anderson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sarah Anderson was last updated on July 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.