NPPES file of Aug 9, 2026

Tamara Ellen Merritt, DO

General Practice Physician · Leavenworth, WA

Tamara Ellen Merritt, DO is a general practice physician with a practice address in Leavenworth, Washington, and NPI 1821022492, issued on Jul 10, 2006. Check the license (Washington OP00002089, as entered in NPPES) on the Washington Medical Commission; 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
1821022492
Name
Tamara Ellen Merritt
Credential
DO
Primary taxonomy
General Practice Physician 208D00000X
License number
OP00002089 WA
Self-reported in NPPES; status is on the state search
Practice location
817 Commercial St, Leavenworth, WA 98826
Phone
(509) 548-5815
Enumerated
Jul 10, 2006
Record last updated
Jun 2, 2023
Fax
(509) 548-2510
Medicaid ID
8464240 WA
Medicare enrollment
Enrolled (PECOS I20070327000742); accepts Medicare assignment
Medical or professional school
Kansas City University Of Med & Biosciences, College Of Osteo Med, 2003
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 817 Commercial St

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

  1. Joseph Aponik, MPT, OCS, CMPT, ATCPhysical Therapist1801554506
  2. Gwendolyn Baldock, PTAPhysical Therapy Assistant1134887664
  3. Kelly Boeing, PAPhysician Assistant1861746505
  4. John BradburnPhysician Assistant1942793757
  5. Tony Butruille, MDFamily Medicine Physician1609870476
  6. Nathan Chambers, PA-CMedical Physician Assistant1295150936

Verify Tamara Ellen Merritt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP00002089
    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
Open 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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13% fewer Medicare Part D claims than the average general practice physician in 2024

2,627 Medicare Part D claims for 245 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 284 claims were for opioids.

  1. Tamara Merritt2,627
  2. Specialty average3,030

Most prescribed

  1. Levothyroxine Sodium99 claims
  2. Oxycodone Hcl95 claims
  3. Omeprazole79 claims
  4. Losartan Potassium76 claims
  5. Atorvastatin Calcium71 claims
  6. Duloxetine Hcl68 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. Chelan County Public Hospital District NO. 1Leavenworth, WA

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

Tamara Ellen Merritt among 388 general practice physician records in Washington

Tamara Ellen Merritt, DO is one of 388 general practice physician records with a practice address in Washington. 28% 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, 79% newer
  • In a Medicare fileYes · 28% of these records are
  • In the CMS Doctors and Clinicians fileYes · 11% of these records are
  • Graduated2003 · median 2002 among the 43 with a school on file
  • Record last updated2023 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 general practice physician record lists a practice address in Leavenworth

They are 1 of the 105 NPPES records with a practice address in Leavenworth, and 388 general practice physician records in Washington.

The 8 general practice physician records with the nearest ZIP codes

  1. Danielle Saunders, N.DManson, WA 988311306262654
  2. Kevin Smith, MDMoses Lake, WA 988371790847952
  3. James Jex, M.D.Tonasket, WA 988551366496697
  4. Chloe Waham, DOTwisp, WA 988561295484616
  5. Theodore Palmatier, M.D.Yakima, WA 989021619277951
  6. Frederick Thysell, MDYakima, WA 989031285643544
  7. George Garfein, MDYakima, WA 989081912961533
  8. Jeffrey Reynolds, M.D.Yakima, WA 989081417982182

Common questions

What is Tamara Ellen Merritt, DO's NPI number?

Tamara Ellen Merritt, DO's National Provider Identifier (NPI) is 1821022492, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tamara Ellen Merritt, DO located?

The NPPES record lists a practice address at 817 Commercial St, Leavenworth, WA, 98826. Phone: (509) 548-5815. Providers update this record themselves, so call before visiting.

How can I verify Tamara Ellen Merritt, DO's license?

NPPES lists Washington license number OP00002089, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Tamara Ellen Merritt, DO prescribe under Medicare Part D?

In 2024, Tamara Ellen Merritt, DO had 2,627 Medicare Part D claims for 245 beneficiaries; the average among general practice physician prescribers was 3,030. 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.