NPPES file of Aug 9, 2026

Cassandra Klakken Viramontes, ARNP

Nurse Practitioner · Grand Coulee, WA

Cassandra Klakken Viramontes, ARNP is a nurse practitioner with a practice address in Grand Coulee, Washington, and NPI 1295316693, issued on Apr 16, 2021. Check the license (Washington AP61156360, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295316693
Name
Cassandra Klakken Viramontes
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP61156360 WA
Self-reported in NPPES; status is on the state search
Practice location
411 Fortuyn RD, Grand Coulee, WA 99133
Phone
(509) 633-1911
Enumerated
Apr 16, 2021
Record last updated
Jun 30, 2025
Fax
(509) 633-3644
Medicaid ID
2188185 WA
Medicare enrollment
Enrolled (PECOS I20211116000499); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 411 Fortuyn RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. David Brown, CRNACertified Registered Nurse Anesthetist1205838703
  2. Samantha Brunner, PA-CPhysician Assistant1639451750
  3. Andrew Castrodale, MDFamily Medicine Physician1689661712
  4. Jacob Chaffee, MDFamily Medicine Physician1811983562
  5. Kathleen Cohen, D.O.Family Medicine Physician1922489343
  6. Charlene Desautel, PTPhysical Therapist1881936052

Verify Cassandra Klakken Viramontes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license AP61156360
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Washington license search

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2.4 times the Medicare Part D claims of the average nurse practitioner in 2024

2,656 Medicare Part D claims for 259 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 192 claims were for opioids.

  1. Cassandra Klakken Viramontes2,656
  2. Specialty average1,109

Most prescribed

  1. Lisinopril117 claims
  2. Gabapentin112 claims
  3. Atorvastatin Calcium96 claims
  4. Levothyroxine Sodium90 claims
  5. Losartan Potassium78 claims
  6. Omeprazole77 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 97.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Douglas, Grant, Lincoln And Okanogan Counties Public Hospital DistrictCoulee City, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cassandra Klakken Viramontes among 2,308 nurse practitioner records in Washington

Cassandra Klakken Viramontes, ARNP is one of 2,308 nurse practitioner records with a practice address in Washington. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 75% of them.

  • NPI issued2021 · 75% of these records are older, 19% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2021 · median 2018 among the 1,301 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 nurse practitioner records list a practice address in Grand Coulee

They are 4 of the 50 NPPES records with a practice address in Grand Coulee, and 2,308 nurse practitioner records in Washington.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Wendy Hughes, ARNPGrand Coulee, WA 991331770570905
  2. Dawn Lovelace, ARNP, CNMGrand Coulee, WA 991331295721058
  3. Karen Rimpler, ARNPGrand Coulee, WA 991331922097237
  4. Lorrie Dawson, BS,MS,PHD, ARNP-BCInchelium, WA 991381245248384
  5. Angela McClainInchelium, WA 991381427612597
  6. Rebecca Stillwell, AP 60897709Inchelium, WA 991381639638372
  7. Amy Hiestand, NPDavenport, WA 991221124140116
  8. Mary Bachko, ADVANCE PRACTICE REGColville, WA 991141265416135

Common questions

What is Cassandra Klakken Viramontes, ARNP's NPI number?

Cassandra Klakken Viramontes, ARNP's National Provider Identifier (NPI) is 1295316693, issued on Apr 16, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Klakken Viramontes, ARNP located?

The NPPES record lists a practice address at 411 Fortuyn RD, Grand Coulee, WA, 99133. Phone: (509) 633-1911. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Klakken Viramontes, ARNP's license?

NPPES lists Washington license number AP61156360, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Cassandra Klakken Viramontes, ARNP prescribe under Medicare Part D?

In 2024, Cassandra Klakken Viramontes, ARNP had 2,656 Medicare Part D claims for 259 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

What is Cassandra Klakken Viramontes, ARNP's MIPS final score?

The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.