NPPES file of Aug 9, 2026

Marelda M. Whitmarsh, ARPN, MN, RN NP-C

Family Nurse Practitioner · Nine Mile Falls, WA

Marelda M. Whitmarsh, ARPN, MN, RN NP-C is a family nurse practitioner with a practice address in Nine Mile Falls, Washington, and NPI 1285645390, issued on Aug 11, 2006. Check the license (Washington AP30006598, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285645390
Name
Marelda M. Whitmarsh
Credential
ARPN, MN, RN NP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
AP30006598 WA
AP4151 AZ
Self-reported in NPPES; status is on the state search
Practice location
5952 Blackstone Way, Nine Mile Falls, WA 99026
Phone
(509) 464-3627
Enumerated
Aug 11, 2006
Record last updated
Oct 12, 2022
Fax
(509) 466-9517
Medicare enrollment
Enrolled (PECOS I20120725000464); 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 5952 Blackstone Way

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

  1. Elaina Adams, PA-CPhysician Assistant1477492932
  2. Matthew Dinsmore, ARNPNurse Practitioner1275887705
  3. June Goldman, M.D.Family Medicine Physician1285604892
  4. Ashley Louie, PHARMDPharmacist1891517587
  5. Dustin NormanPhysician Assistant1447863105
  6. Evonn O'Neill, M.D.Family Medicine Physician1205887114

Verify Marelda M. Whitmarsh 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 AP30006598
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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65% fewer Medicare Part D claims than the average family nurse practitioner in 2024

455 Medicare Part D claims for 267 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 16 claims were for opioids.

  1. Marelda Whitmarsh455
  2. Specialty average1,305

Most prescribed

  1. Prednisone83 claims
  2. Albuterol Sulfate Hfa42 claims
  3. Sulfamethoxazole-Trimethoprim32 claims
  4. Cephalexin26 claims
  5. Doxycycline Hyclate25 claims
  6. Amoxicillin-Clavulanate Potass24 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.

Bills Medicare through one group practice

  1. Privia Medical Group Washington PLLCSpokane, WA

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

Marelda M. Whitmarsh among 3,781 family nurse practitioner records in Washington

Marelda M. Whitmarsh, ARPN, MN, RN NP-C is one of 3,781 family nurse practitioner records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 84% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2003 · median 2018 among the 2,116 with a school on file
  • Record last updated2022 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 family nurse practitioner records list a practice address in Nine Mile Falls

They are 2 of the 45 NPPES records with a practice address in Nine Mile Falls, and 3,781 family nurse practitioner records in Washington.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Angeleen Graves, ARNPNine Mile Falls, WA 990261174347546
  2. Brian Yoon, ARNPReardan, WA 990291841790268
  3. Cassandra DubbelsMedical Lake, WA 990221992260699
  4. Patricia Dykstra, ARNPMedical Lake, WA 990221821081308
  5. Ruth Oman, ARNPMedical Lake, WA 990221689864159
  6. Christopher Wellwood, D.C., ARNP, NP-CMedical Lake, WA 990221457413833
  7. Ashley CreedyLiberty Lake, WA 990191619329034
  8. Lorena De La RosaLiberty Lake, WA 990191194201533

Common questions

What is Marelda M. Whitmarsh, ARPN, MN, RN NP-C's NPI number?

Marelda M. Whitmarsh, ARPN, MN, RN NP-C's National Provider Identifier (NPI) is 1285645390, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marelda M. Whitmarsh, ARPN, MN, RN NP-C located?

The NPPES record lists a practice address at 5952 Blackstone Way, Nine Mile Falls, WA, 99026. Phone: (509) 464-3627. Providers update this record themselves, so call before visiting.

How can I verify Marelda M. Whitmarsh, ARPN, MN, RN NP-C's license?

NPPES lists Washington license number AP30006598, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Marelda M. Whitmarsh, ARPN, MN, RN NP-C prescribe under Medicare Part D?

In 2024, Marelda M. Whitmarsh, ARPN, MN, RN NP-C had 455 Medicare Part D claims for 267 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

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.