NPPES file of Aug 9, 2026

Linh Thi Ngoc Nguyen, DDS

Dentist · Ontario, CA

Linh Thi Ngoc Nguyen, DDS is a dentist with a practice address in Ontario, California, and NPI 1720208408, issued on Apr 26, 2007. Check the license (California 43473, 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
1720208408
Name
Linh Thi Ngoc Nguyen
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
43473 CA
Self-reported in NPPES; status is on the state search
Practice location
2409 S Vineyard Ave Ste D, Ontario, CA 91761
Phone
(909) 923-9557
Enumerated
Apr 26, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(909) 923-9946
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 Linh Thi Ngoc Nguyen 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 43473
    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
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77% fewer Medicare Part D claims than the average dentist in 2024

20 Medicare Part D claims for 12 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Linh Nguyen20
  2. Specialty average86

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.

52 dentist records list a practice address in Ontario

They are 52 of the 5,375 NPPES records with a practice address in Ontario, and 14,729 dentist records in California.

Other dentist records in California

  1. Chantelle AabediLos Angeles, CA1740895150
  2. Sohrab Aalam, DMDIrvine, CA1497431100
  3. Rick Aaronian, DDSFresno, CA1245452184
  4. Michael Aaronson, DDSSan Rafael, CA1992029722
  5. Autumn Abadesco, DDSLa Puente, CA1952857237
  6. Behzad Abadi, DMDDowney, CA1588879100
  7. Esfandiar Abadi, DDSSacramento, CA1992926448
  8. Bahareh AbadianSan Jose, CA1689169005
  9. Reza Abaei Tafreshi, DDSIrvine, CA1134656804
  10. Michael AbaianSherman Oaks, CA1023263167

Common questions

What is Linh Thi Ngoc Nguyen, DDS's NPI number?

Linh Thi Ngoc Nguyen, DDS's National Provider Identifier (NPI) is 1720208408, issued on Apr 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Linh Thi Ngoc Nguyen, DDS located?

The NPPES record lists a practice address at 2409 S Vineyard Ave Ste D, Ontario, CA, 91761. Phone: (909) 923-9557. Providers update this record themselves, so call before visiting.

How can I verify Linh Thi Ngoc Nguyen, DDS's license?

NPPES lists California license number 43473, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Linh Thi Ngoc Nguyen, DDS prescribe under Medicare Part D?

In 2024, Linh Thi Ngoc Nguyen, DDS had 20 Medicare Part D claims for 12 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.