Tony Sieu, DDS
General Practice Dentistry · Redmond, WA
Tony Sieu, DDS is a general practice dentistry with a practice address in Redmond, Washington, and NPI 1003940446, issued on Mar 15, 2007. Check the license (Washington DE00007936, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tony Sieu
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DE00007936 WA
Self-reported in NPPES; status is on the state search - Practice location
- 22500 NE Marketplace Dr Ste 201, Redmond, WA 98053
- Phone
- (425) 868-6600
- Enumerated
- Mar 15, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 3,196 in Washington → Look up another NPI →
Verify Tony Sieu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license DE00007936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average general practice dentistry in 2024
13 Medicare Part D claims, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Tony Sieu among 3,196 general practice dentistry records in Washington
Tony Sieu, DDS is one of 3,196 general practice dentistry records with a practice address in Washington. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 37% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
60 general practice dentistry records list a practice address in Redmond
They are 60 of the 1,797 NPPES records with a practice address in Redmond, and 3,196 general practice dentistry records in Washington.
All 3,196 in Washington → Every provider in Redmond → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Westin Fabro, DDSRedmond, WA 980531427789221
- David Hagel, D.D.S., P.S.Redmond, WA 980531497842264
- Shane Ness, D.D.S.Redmond, WA 980531306958814
- Arne Ness, D.D.S.Redmond, WA 980531093827578
- Richard Van Der Sluys, D.D.S.Redmond, WA 980531124032321
- Dina Al-Bassyiouni, DDSRedmond, WA 980521073181616
- Isabella Amar, DDSRedmond, WA 980521447731013
- Byron Chen, DDSRedmond, WA 980521760123400
Common questions
What is Tony Sieu, DDS's NPI number?
Tony Sieu, DDS's National Provider Identifier (NPI) is 1003940446, issued on Mar 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tony Sieu, DDS located?
The NPPES record lists a practice address at 22500 NE Marketplace Dr Ste 201, Redmond, WA, 98053. Phone: (425) 868-6600. Providers update this record themselves, so call before visiting.
How can I verify Tony Sieu, DDS's license?
NPPES lists Washington license number DE00007936, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Tony Sieu, DDS prescribe under Medicare Part D?
In 2024, Tony Sieu, DDS had 13 Medicare Part D claims; the average among general practice dentistry prescribers was 83. 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.