Diana Wen Chan, DDS
Dentist · Seattle, WA
Diana Wen Chan, DDS is a dentist with a practice address in Seattle, Washington, and NPI 1588391536, issued on Aug 1, 2022. Check the license (Washington DE61325386, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Wen Chan
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- DE61325386 WA
Self-reported in NPPES; status is on the state search - Practice location
- 9730 3RD Ave NE Ste 204, Seattle, WA 98115
- Phone
- (206) 524-5700
- Enumerated
- Aug 1, 2022
- Record last updated
- Oct 14, 2022
- Fax
- (206) 524-0765
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,767 in Washington → Look up another NPI →
Also registered at 9730 3RD Ave NE Ste 204
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sonia Takasaki, DMDGeneral Practice Dentistry1124368550
Verify Diana Wen Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license DE61325386Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average dentist in 2024
31 Medicare Part D claims for 16 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Chlorhexidine Gluconate12 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.
Industry payments in 2024: $16.46
1 payment: food and beverage; the largest payer was Solventum Corporation. The 31,974 providers of this specialty with any payment received $540.36 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.
Diana Wen Chan among 2,767 dentist records in Washington
Diana Wen Chan, DDS is one of 2,767 dentist records with a practice address in Washington. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 85% of them.
- NPI issued2022 · 85% of these records are older, 11% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2022 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in Washington
There are 2,767 dentist records in Washington.
All 2,767 in Washington → Every provider in Seattle → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Jeffrey Bennett, DDS, MSDSeattle, WA 981151124462924
- Inese Bergman, DDSSeattle, WA 981151720150014
- Stephen Chadwick, D.D.S.Seattle, WA 981151225263213
- Peter Chung, D.D.S.Seattle, WA 981151174720767
- Andrew Heidergott, DDSSeattle, WA 981151568694826
- Ken McNabb, D.D.S.Seattle, WA 981151285644369
- Ryan Murphy, D.M.D.Seattle, WA 981151649426370
- Scott Peck, D.D.S.Seattle, WA 981151720058720
Common questions
What is Diana Wen Chan, DDS's NPI number?
Diana Wen Chan, DDS's National Provider Identifier (NPI) is 1588391536, issued on Aug 1, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Diana Wen Chan, DDS located?
The NPPES record lists a practice address at 9730 3RD Ave NE Ste 204, Seattle, WA, 98115. Phone: (206) 524-5700. Providers update this record themselves, so call before visiting.
How can I verify Diana Wen Chan, DDS's license?
NPPES lists Washington license number DE61325386, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Wen Chan, DDS prescribe under Medicare Part D?
In 2024, Diana Wen Chan, DDS had 31 Medicare Part D claims for 16 beneficiaries; the average among dentist prescribers was 86. 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.