Diane R. Cox, P.A.C.
Surgical Physician Assistant · Seattle, WA
Diane R. Cox, P.A.C. is a surgical physician assistant with a practice address in Seattle, Washington, and NPI 1083981948, issued on Nov 21, 2011. Check the license (Washington PA60908344, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diane R. Cox
- Credential
- P.A.C.
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- PA60908344 WA
Self-reported in NPPES; status is on the state search - Practice location
- 325 9TH Ave, Seattle, WA 98104
- Phone
- (206) 520-5000
- Enumerated
- Nov 21, 2011
- Record last updated
- Jan 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 1083981948 WA
- Medicare enrollment
- Enrolled (PECOS I20190221000682); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 609 in Washington → Look up another NPI →
Also registered at 325 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noor Aaf, PA-CMedical Physician Assistant1558394171
- Sheida Aalami, M.D.Internal Medicine Physician1730573296
- Collette AbbottHospitalist Physician1306208293
- Akrm Abdalrahman, MD, MSCritical Care Medicine (Anesthesiology) Physician1801374905
- Martin Abdo, COUNSELORCounselor1821202904
- Nauzley Abedini, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1043637408
Verify Diane R. Cox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PA60908344Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average surgical physician assistant in 2024
42 Medicare Part D claims for 21 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D.
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): 79.2 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Overlake Medical Clinics LLCBellevue, WA
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane R. Cox among 609 surgical physician assistant records in Washington
Diane R. Cox, P.A.C. is one of 609 surgical physician assistant records with a practice address in Washington. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 42% of them.
- NPI issued2011 · 42% of these records are older, 55% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2011 · median 2015 among the 479 with a school on file
- Record last updated2020 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in Washington
There are 609 surgical physician assistant records in Washington.
All 609 in Washington → Every provider in Seattle → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- John Michael Echeveste, PASeattle, WA 981041609910967
- Julianne Howard, PA-CSeattle, WA 981041790203255
- Claudia Kalotay, PA-CSeattle, WA 981041528007069
- Sin Leung, PA-CSeattle, WA 981041548743800
- Tiffany Little, PA-CSeattle, WA 981041831542364
- Anna Must, PA-CSeattle, WA 981041699222778
- Erin Naidu, PA-CSeattle, WA 981041619203114
- Heather Pardue, PA-CSeattle, WA 981041366775017
Common questions
What is Diane R. Cox, P.A.C.'s NPI number?
Diane R. Cox, P.A.C.'s National Provider Identifier (NPI) is 1083981948, issued on Nov 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Diane R. Cox, P.A.C. located?
The NPPES record lists a practice address at 325 9TH Ave, Seattle, WA, 98104. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Diane R. Cox, P.A.C.'s license?
NPPES lists Washington license number PA60908344, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Diane R. Cox, P.A.C. prescribe under Medicare Part D?
In 2024, Diane R. Cox, P.A.C. had 42 Medicare Part D claims for 21 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
What is Diane R. Cox, P.A.C.'s MIPS final score?
The 2023 MIPS final score is 79.2 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.