NPPES file of Aug 9, 2026

Timothy Thien Bui, D.D.S.

Dentist · Garden Grove, CA

Timothy Thien Bui, D.D.S. is a dentist with a practice address in Garden Grove, California, and NPI 1770774671, issued on Aug 6, 2007. Check the license (California 34593, as entered in NPPES) with the California board that licenses this profession; 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
1770774671
Name
Timothy Thien Bui
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
34593 CA
Self-reported in NPPES; status is on the state search
Practice location
10971 Garden Grove Blvd, Garden Grove, CA 92843
Phone
(714) 537-0550
Enumerated
Aug 6, 2007
Record last updated
Aug 6, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Timothy Thien Bui in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 34593
    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
Find the California license search

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78% fewer Medicare Part D claims than the average dentist in 2024

19 Medicare Part D claims for 13 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Timothy Bui19
  2. Specialty average86

Most prescribed

  1. Amoxicillin15 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.

Timothy Thien Bui among 14,729 dentist records in California

Timothy Thien Bui, D.D.S. is one of 14,729 dentist records with a practice address in California. 56% 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 18% of them.

  • NPI issued2007 · 18% of these records are older, 58% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2007 · 73% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

78 dentist records list a practice address in Garden Grove

They are 78 of the 4,572 NPPES records with a practice address in Garden Grove, and 14,729 dentist records in California.

The 8 dentist records with the nearest ZIP codes

  1. Nader Botros, DENTISTGarden Grove, CA 928431336257955
  2. Loc Dan, DDSGarden Grove, CA 928431467677732
  3. James Hong, D.D.S.Garden Grove, CA 928431528109725
  4. Yen Le, DDSGarden Grove, CA 928431770707978
  5. Thanh-Hang Le, D.D.S.Garden Grove, CA 928431225240708
  6. Vu Mai, DDSGarden Grove, CA 928431578781118
  7. Mary Phuoc Nguyen, D.M.D.Garden Grove, CA 928431255409124
  8. Robert Ramsey, D.D.S.Garden Grove, CA 928431043319734

Common questions

What is Timothy Thien Bui, D.D.S.'s NPI number?

Timothy Thien Bui, D.D.S.'s National Provider Identifier (NPI) is 1770774671, issued on Aug 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Thien Bui, D.D.S. located?

The NPPES record lists a practice address at 10971 Garden Grove Blvd, Garden Grove, CA, 92843. Phone: (714) 537-0550. Providers update this record themselves, so call before visiting.

How can I verify Timothy Thien Bui, D.D.S.'s license?

NPPES lists California license number 34593, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Timothy Thien Bui, D.D.S. prescribe under Medicare Part D?

In 2024, Timothy Thien Bui, D.D.S. had 19 Medicare Part D claims for 13 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.