NPPES file of Aug 9, 2026

Chelsea Cox, D.O.

Obstetrics & Gynecology Physician · Burien, WA

Chelsea Cox, D.O. is an obstetrics & gynecology physician with a practice address in Burien, Washington, and NPI 1881055077, issued on Mar 15, 2016. Check the license (Washington OP61035777, 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
1881055077
Name
Chelsea Cox
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
OP61035777 WA
Self-reported in NPPES; status is on the state search
Practice location
16045 1St Ave S FL 2, Burien, WA 98148
Phone
(206) 965-4200
Enumerated
Mar 15, 2016
Record last updated
Sep 23, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(206) 965-4279
Medicaid ID
2162462 WA
Medicare enrollment
Enrolled (PECOS I20200914002257); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Osteopathic Medicine, 2016
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 16045 1St Ave S FL 2

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

  1. Whitney Archibald, M.D.Obstetrics & Gynecology Physician1679916217
  2. Stephanie Batalao, ARNPWomen's Health Nurse Practitioner1487692471
  3. Annette Blevins, MDObstetrics & Gynecology Physician1609082866
  4. Margaret Carroll, CNMAdvanced Practice Midwife1578200523
  5. Shari Luchino, DNP, ARNP, CNMAdvanced Practice Midwife1194070300
  6. Shirley Matenda, RDRegistered Dietitian1467987537

Verify Chelsea Cox in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP61035777
    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

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62% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

62 Medicare Part D claims for 25 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Chelsea Cox62
  2. Specialty average165

Most prescribed

  1. Estradiol17 claims
  2. Progesterone12 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. Franciscan Medical GroupBurien, WA

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

Obstetrics & Gynecology Physician providers in Washington

There are 1,038 obstetrics & gynecology physician records in Washington.

Other obstetrics & gynecology physician records in Washington

  1. Monica Abbi, MDTacoma, WA1295703650
  2. Hasan Abdessamad, MDBurien, WA1265643472
  3. Daniela Abreu, DOMount Vernon, WA1770169260
  4. Kayla Aczon, ARNPAuburn, WA1093560021
  5. Kristina Adams WaldorfSeattle, WA1659457463
  6. Christen Adkins, MDSeattle, WA1689017956
  7. Richard Agress, M.D.Seattle, WA1215902036
  8. Patricia Agudelo Suarez, MDSeattle, WA1821139445
  9. Homayoun Akhavan-Saraf, M.D.Vancouver, WA1518906916
  10. Chiazor Akusoba, M.D.Issaquah, WA1104261064

Common questions

What is Chelsea Cox, D.O.'s NPI number?

Chelsea Cox, D.O.'s National Provider Identifier (NPI) is 1881055077, issued on Mar 15, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Chelsea Cox, D.O. located?

The NPPES record lists a practice address at 16045 1St Ave S FL 2, Burien, WA, 98148. Phone: (206) 965-4200. Providers update this record themselves, so call before visiting.

How can I verify Chelsea Cox, D.O.'s license?

NPPES lists Washington license number OP61035777, 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 Chelsea Cox, D.O. prescribe under Medicare Part D?

In 2024, Chelsea Cox, D.O. had 62 Medicare Part D claims for 25 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.