NPPES file of Aug 9, 2026

Thomas Kevin Westhusing, D.O.

Family Medicine Physician · Pasco, WA

Thomas Kevin Westhusing, D.O. is a family medicine physician with a practice address in Pasco, Washington, and NPI 1164539425, issued on Aug 24, 2006. Check the license (Washington OP00001712, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164539425
Name
Thomas Kevin Westhusing
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OP00001712 WA
Self-reported in NPPES; status is on the state search
Practice location
1200 N 14TH Ave, Pasco, WA 99301
Phone
(509) 545-6220
Enumerated
Aug 24, 2006
Record last updated
Oct 7, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(509) 547-0894
Medicaid ID
8413452 WA
Medicare enrollment
Enrolled (PECOS I20050126000262); accepts Medicare assignment
Medical or professional school
Oklahoma State University College Of Osteopathic Medicine, 1999
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 1200 N 14TH Ave

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

  1. Susan Brain, A.R.N.P.Nurse Practitioner1316016579
  2. Gregory Carl, MDOtolaryngology Physician1891807053
  3. Enrique Carter, M.D.Specialist1326098310
  4. Valiant Chou, MDObstetrics & Gynecology Physician1396719928
  5. Walter Cooper, M.D.Family Medicine Physician1528137759
  6. Donna Doyle, RPHPharmacist1104103175

Verify Thomas Kevin Westhusing in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP00001712
    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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78% more Medicare Part D claims than the average family medicine physician in 2024

6,307 Medicare Part D claims for 628 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 168 claims were for opioids.

  1. Thomas Westhusing6,307
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium428 claims
  2. Amlodipine Besylate291 claims
  3. Levothyroxine Sodium236 claims
  4. Metformin Hcl Er218 claims
  5. Omeprazole173 claims
  6. Tamsulosin Hcl164 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 practice group's MIPS final score for 2023 (Medicare payment program): 83.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score76.5
  2. Costout of 100 · 30%67.0
  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, group reporting; category weights for 2023 (qpp.cms.gov).

One hospital affiliation

  1. Kadlec Regional Medical CenterRichland, WA · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Thomas Kevin Westhusing among 5,534 family medicine physician records in Washington

Thomas Kevin Westhusing, D.O. is one of 5,534 family medicine physician records with a practice address in Washington. 73% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 58% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1999 · median 2009 among the 3,294 with a school on file
  • Record last updated2016 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

26 family medicine physician records list a practice address in Pasco

They are 26 of the 874 NPPES records with a practice address in Pasco, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. Erenio Aledo, MDPasco, WA 993011275623795
  2. Victor Brooks, MDPasco, WA 993011477689834
  3. Marshall Brown, D.O.Pasco, WA 993011275556904
  4. Walter Cooper, M.D.Pasco, WA 993011528137759
  5. Nestor Gonzalez, MDKennewick, WA 993011194702787
  6. David Jones, MDPasco, WA 993011912953860
  7. Kevin Ochoa, MDPasco, WA 993011942262118
  8. Matthew Painter, DOPasco, WA 993011790724987

Common questions

What is Thomas Kevin Westhusing, D.O.'s NPI number?

Thomas Kevin Westhusing, D.O.'s National Provider Identifier (NPI) is 1164539425, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Kevin Westhusing, D.O. located?

The NPPES record lists a practice address at 1200 N 14TH Ave, Pasco, WA, 99301. Phone: (509) 545-6220. Providers update this record themselves, so call before visiting.

How can I verify Thomas Kevin Westhusing, D.O.'s license?

NPPES lists Washington license number OP00001712, 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 Thomas Kevin Westhusing, D.O. prescribe under Medicare Part D?

In 2024, Thomas Kevin Westhusing, D.O. had 6,307 Medicare Part D claims for 628 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Thomas Kevin Westhusing, D.O.'s MIPS final score?

The 2023 MIPS final score is 83.1 of 100, reported for the practice group. 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.