Tho B. Nguyen, DDS
General Practice Dentistry · Westminster, CA
Tho B. Nguyen, DDS is a general practice dentistry with a practice address in Westminster, California, and NPI 1336289669, issued on Feb 7, 2007. Check the license (California 41496, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tho B. Nguyen
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 41496 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9513 Bolsa Ave, Westminster, CA 92683
- Phone
- (714) 839-1020
- Enumerated
- Feb 7, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 839-7546
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 9513 Bolsa Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lethy Vo, DDSGeneral Practice Dentistry1508906843
Verify Tho B. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 41496Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average general practice dentistry in 2024
267 Medicare Part D claims for 105 beneficiaries, 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.
Most prescribed
- Chlorhexidine Gluconate100 claims
- Amoxicillin93 claims
- Ibuprofen61 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.
Tho B. Nguyen among 17,852 general practice dentistry records in California
Tho B. Nguyen, DDS is one of 17,852 general practice dentistry records with a practice address in California. 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 29% of them.
- NPI issued2007 · 29% of these records are older, 40% 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 · 79% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
94 general practice dentistry records list a practice address in Westminster
They are 94 of the 1,306 NPPES records with a practice address in Westminster, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Westminster → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Elizabeth An, D.D.S.Westminster, CA 926831184677155
- George Arakaki, DDSWestminster, CA 926831083714638
- Cliff Chang, D.D.S.Westminster, CA 926831629091186
- Rho Chao, D.M.D.Westminster, CA 926831154433423
- Mai Dang, DDSWestminster, CA 926831114927076
- Lester Lim, DDSWestminster, CA 926831386742500
- Chaulinh Mai, D.D.SWestminster, CA 926831518068816
- Nader Mehr, D.D.SWestminster, CA 926831629178694
Common questions
What is Tho B. Nguyen, DDS's NPI number?
Tho B. Nguyen, DDS's National Provider Identifier (NPI) is 1336289669, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tho B. Nguyen, DDS located?
The NPPES record lists a practice address at 9513 Bolsa Ave, Westminster, CA, 92683. Phone: (714) 839-1020. Providers update this record themselves, so call before visiting.
How can I verify Tho B. Nguyen, DDS's license?
NPPES lists California license number 41496, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Tho B. Nguyen, DDS prescribe under Medicare Part D?
In 2024, Tho B. Nguyen, DDS had 267 Medicare Part D claims for 105 beneficiaries; 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.