William Cox, DO
Family Medicine Physician · Selah, WA
William Cox, DO is a family medicine physician with a practice address in Selah, Washington, and NPI 1184717936, issued on Oct 2, 2006. Check the license (Washington OP00001024, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- William Cox
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OP00001024 WA
Self-reported in NPPES; status is on the state search - Practice location
- 9 E 1St Ave, Selah, WA 98942
- Phone
- (509) 697-8008
- Enumerated
- Oct 2, 2006
- Entity
- Type 1 · individual
Also registered at 9 E 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Logan Williams, LMPMassage Therapist1356644819
Verify William Cox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP00001024Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
72% more Medicare Part D claims than the average family medicine physician in 2024
6,053 Medicare Part D claims for 309 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 384 claims were for opioids.
Most prescribed
- Levothyroxine Sodium221 claims
- Atorvastatin Calcium201 claims
- Rosuvastatin Calcium191 claims
- Lisinopril148 claims
- Tramadol Hcl138 claims
- Telmisartan124 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.
No measured Medicare quality score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,432.16
33 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
6 family medicine physician records list a Selah practice address
They are 6 of the 144 NPPES records with a Selah practice address, and 5,264 family medicine physician records in Washington.
All 6 in Selah → All 5,264 in Washington → Every provider in Selah →
Other family medicine physician records in Washington
- Shawn Aaron, MDLongview, WA1578560710
- John Abano, M.D.Shoreline, WA1891929857
- Sarah Abbot, DOKirkland, WA1033555180
- Arthur Abbott, M.D.Seattle, WA1255488847
- Dale Abbott, MDBurlington, WA1760453534
- Michael Abbott, MDEast Wenatchee, WA1336179928
- Richard Abbott, M.D.Mount Vernon, WA1689835803
- Charlee Abboud, DOTacoma, WA1174152169
- Suad AbdelazizSeattle, WA1306423421
- Joonis Abdulkhader, M.D.Seattle, WA1518154335
Common questions
What is William Cox, DO's NPI number?
William Cox, DO's National Provider Identifier (NPI) is 1184717936, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Cox, DO located?
The NPPES record lists a practice address at 9 E 1St Ave, Selah, WA, 98942. Phone: (509) 697-8008. Providers update this record themselves, so call before visiting.
How can I verify William Cox, DO's license?
NPPES lists Washington license number OP00001024, 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 William Cox, DO prescribe under Medicare Part D?
In 2024, William Cox, DO had 6,053 Medicare Part D claims for 309 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
What is William Cox, DO's Medicare quality score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.