NPPES file of Aug 9, 2026

Dinh Le Quang Nguyen, M.D.

Family Medicine Physician · Grand Terrace, CA

Dinh Le Quang Nguyen, M.D. is a family medicine physician with a practice address in Grand Terrace, California, and NPI 1750721692, issued on Jun 25, 2013. Check the license (California A131772, as entered in NPPES) on the Medical Board of California; 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
1750721692
Name
Dinh Le Quang Nguyen
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A131772 CA
Self-reported in NPPES; status is on the state search
Practice location
11980 Mount Vernon Ave, Grand Terrace, CA 92313
Phone
(909) 864-1097
Enumerated
Jun 25, 2013
Record last updated
Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150226001641); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →

Also registered at 11980 Mount Vernon Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Margaret Amoo, NURSE PRACTITIONERFamily Nurse Practitioner1164057022
  2. Noemi AvilaPediatric Nurse Practitioner1023691623
  3. Eric Eschweiler, DNP, RN, FNP-CFamily Nurse Practitioner1912396201
  4. Philip Farabaugh, MDFamily Medicine Physician1285763615
  5. Ramon Ferra, MDObstetrics & Gynecology Physician1285614750
  6. Ashley Fonseca-Tweed, FNP-BCFamily Nurse Practitioner1275316176

Verify Dinh Le Quang Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A131772    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
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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56% fewer Medicare Part D claims than the average family medicine physician in 2024

1,543 Medicare Part D claims for 286 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 88 claims were for opioids.

  1. Dinh Nguyen1,543
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium100 claims
  2. Losartan Potassium96 claims
  3. Rosuvastatin Calcium79 claims
  4. Amlodipine Besylate77 claims
  5. Lisinopril61 claims
  6. Levothyroxine Sodium55 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupSan Marcos, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dinh Le Quang Nguyen among 17,133 family medicine physician records in California

Dinh Le Quang Nguyen, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2005 among the 10,652 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 family medicine physician records list a practice address in Grand Terrace

They are 6 of the 204 NPPES records with a practice address in Grand Terrace, and 17,133 family medicine physician records in California.

All 17,133 in California → Every provider in Grand Terrace → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Philip Farabaugh, MDGrand Terrace, CA 923131285763615
  2. Sukhdeep Gill, M.D.Grand Terrace, CA 923131881837813
  3. Cassidy KooGrand Terrace, CA 923131497495535
  4. Margaret McLeod, M.D.Grand Terrace, CA 923131144472580
  5. Diana Plucker, MDGrand Terrace, CA 923131568877629
  6. Mikel Alwis, M.D.Barstow, CA 923111790705671
  7. Jessica Basa, M.D.Barstow, CA 923111952360539
  8. Brenna Baynard-Smith, M.D.Barstow, CA 923111932195542

Common questions

What is Dinh Le Quang Nguyen, M.D.'s NPI number?

Dinh Le Quang Nguyen, M.D.'s National Provider Identifier (NPI) is 1750721692, issued on Jun 25, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Dinh Le Quang Nguyen, M.D. located?

The NPPES record lists a practice address at 11980 Mount Vernon Ave, Grand Terrace, CA, 92313. Phone: (909) 864-1097. Providers update this record themselves, so call before visiting.

How can I verify Dinh Le Quang Nguyen, M.D.'s license?

NPPES lists California license number A131772, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dinh Le Quang Nguyen, M.D. prescribe under Medicare Part D?

In 2024, Dinh Le Quang Nguyen, M.D. had 1,543 Medicare Part D claims for 286 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.