Wynne Chen, MD
Sleep Medicine (Internal Medicine) Physician · Seattle, WA
Wynne Chen, MD is a sleep medicine (internal medicine) physician with a practice address in Seattle, Washington, and NPI 1518974351, issued on Aug 2, 2006. Check the license (Washington MD00045640, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Wynne Chen
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- MD00045640 WA
Self-reported in NPPES; status is on the state search - Practice location
- 904 7TH Ave, Seattle, WA 98104
- Phone
- (206) 860-5499
- Enumerated
- Aug 2, 2006
- Record last updated
- Nov 6, 2025
- Medicaid IDs
- 1012388 WA
8438632 WA - Medicare enrollment
- Enrolled (PECOS I20051129001028); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 52 in Washington → Look up another NPI →
Also registered at 904 7TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Wynne Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00045640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
884 Medicare Part D claims for 165 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Albuterol Sulfate Hfa84 claims
- Prednisone67 claims
- Zolpidem Tartrate61 claims
- Trelegy Ellipta51 claims
- Azelastine Hcl45 claims
- Trazodone Hcl34 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 2 group practices
- The Polyclinic PLLCSeattle, WA
- Valley Medical Group-RentonRenton, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wynne Chen among 52 sleep medicine (internal medicine) physician records in Washington
Wynne Chen, MD is one of 52 sleep medicine (internal medicine) physician 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 46% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1995 · median 2001 among the 38 with a school on file
- Record last updated2025 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Washington
There are 52 sleep medicine (internal medicine) physician records in Washington.
All 52 in Washington → Every provider in Seattle → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Martha Billings, M.D.Seattle, WA 981041700811619
- Vishesh KapurSeattle, WA 981041447336169
- Lefulesele Kholoane, M.B.B.S.Seattle, WA 981041780259648
- Ifeoma Oriaku, M.D.Seattle, WA 981041417319526
- Oneil Bains, MDSeattle, WA 981011982712584
- David Culpepper, MDSeattle, WA 981011386021079
- Susan Rausch, MDSeattle, WA 981011326073768
- Amir Sabzpoushan, M.D.Seattle, WA 981011285890038
Common questions
What is Wynne Chen, MD's NPI number?
Wynne Chen, MD's National Provider Identifier (NPI) is 1518974351, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wynne Chen, MD located?
The NPPES record lists a practice address at 904 7TH Ave, Seattle, WA, 98104. Phone: (206) 860-5499. Providers update this record themselves, so call before visiting.
How can I verify Wynne Chen, MD's license?
NPPES lists Washington license number MD00045640, 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 Wynne Chen, MD prescribe under Medicare Part D?
In 2024, Wynne Chen, MD had 884 Medicare Part D claims for 165 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.