NPPES file of Aug 9, 2026

VI Tuong Thi Nguyen, DO

Family Medicine Physician · San Diego, CA

VI Tuong Thi Nguyen, DO is a family medicine physician with a practice address in San Diego, California, and NPI 1124656061, issued on Mar 27, 2020. Check the license (California 20A20809, 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
1124656061
Name
VI Tuong Thi Nguyen
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A20809 CA
Self-reported in NPPES; status is on the state search
Practice location
5069 EL Cajon Blvd, San Diego, CA 92115
Phone
(619) 583-8705
Enumerated
Mar 27, 2020
Record last updated
Mar 24, 2026
Fax
(619) 583-8701
Medicare enrollment
Enrolled (PECOS I20230804002132); accepts Medicare assignment
Medical or professional school
Touro Un Col Of Osteopathic Medicine, Henderson, 2020
Telehealth
Offers telehealth (CMS)
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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Also registered at 5069 EL Cajon Blvd

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

  1. Tu Truong, M.D.Internal Medicine Physician1194794263

Verify VI Tuong Thi 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 20A20809
    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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75% fewer Medicare Part D claims than the average family medicine physician in 2024

894 Medicare Part D claims for 236 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. VI Tuong Nguyen894
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium70 claims
  2. Amlodipine Besylate46 claims
  3. Losartan Potassium46 claims
  4. Levothyroxine Sodium37 claims
  5. Gabapentin29 claims
  6. Rosuvastatin Calcium24 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. Memorialcare Medical FoundationAnaheim, CA

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

VI Tuong Thi Nguyen among 17,133 family medicine physician records in California

VI Tuong Thi Nguyen, DO 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 2020, is newer than 88% of them.

  • NPI issued2020 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2020 · median 2005 among the 10,652 with a school on file
  • Record last updated2026 · 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).

780 family medicine physician records list a practice address in San Diego

They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Najwan Al Ani, MDSan Diego, CA 921151275948473
  2. Matthew Beal, MDSan Diego, CA 921151710398086
  3. Kristin Brownell, MDSan Diego, CA 921151134232259
  4. Daniel Corman, DOSan Diego, CA 921151629339593
  5. Laura Coulson, MDSan Diego, CA 921151447308424
  6. Viet Dao, M.D.San Diego, CA 921151861406225
  7. Ramandeep Dhillon, M.D.San Diego, CA 921151003171372
  8. Brenda Green, M.D.San Diego, CA 921151508125410

Common questions

What is VI Tuong Thi Nguyen, DO's NPI number?

VI Tuong Thi Nguyen, DO's National Provider Identifier (NPI) is 1124656061, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.

Where is VI Tuong Thi Nguyen, DO located?

The NPPES record lists a practice address at 5069 EL Cajon Blvd, San Diego, CA, 92115. Phone: (619) 583-8705. Providers update this record themselves, so call before visiting.

How can I verify VI Tuong Thi Nguyen, DO's license?

NPPES lists California license number 20A20809, 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 VI Tuong Thi Nguyen, DO prescribe under Medicare Part D?

In 2024, VI Tuong Thi Nguyen, DO had 894 Medicare Part D claims for 236 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.

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.