Truongson Huu Nguyen, D.O.
Family Medicine Physician · Rancho Cucamonga, CA
Truongson Huu Nguyen, D.O. is a family medicine physician with a practice address in Rancho Cucamonga, California, and NPI 1629517792, issued on Feb 22, 2017. Check the license (California 20A18287, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Truongson Huu Nguyen
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 20A18287 CA
OT017886 PA
Self-reported in NPPES; status is on the state search - Practice location
- 6417 Haven Ave Ste 110, Rancho Cucamonga, CA 91737
- Phone
- (909) 941-2273
- Enumerated
- Feb 22, 2017
- Record last updated
- Oct 22, 2025
- Medicare enrollment
- Enrolled (PECOS I20201030001190); accepts Medicare assignment
- Medical or professional school
- Western University Of Health Sciences College Of Dental Med, 2017
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 6417 Haven Ave Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Henry Cho, MDFamily Medicine Physician1710484746
- Nadine Cosico, PA-CPhysician Assistant1992811749
- Brian Im, PAPhysician Assistant1700186491
- Yi Zhang, M.D.Emergency Medicine Physician1164466322
Verify Truongson Huu Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A18287Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
463 Medicare Part D claims for 359 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Cephalexin72 claims
- Albuterol Sulfate Hfa28 claims
- Benzonatate28 claims
- Amoxicillin-Clavulanate Potass27 claims
- Amoxicillin22 claims
- Ibuprofen22 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
- Haven Elite Urgent CareRancho Cucamonga, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Truongson Huu Nguyen among 17,133 family medicine physician records in California
Truongson Huu Nguyen, D.O. 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 2017, is newer than 79% of them.
- NPI issued2017 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2005 among the 10,652 with a school on file
- Record last updated2025 · 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).
62 family medicine physician records list a practice address in Rancho Cucamonga
They are 62 of the 4,579 NPPES records with a practice address in Rancho Cucamonga, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Rancho Cucamonga → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Crisostomo Armada, D.O.Rancho Cucamonga, CA 917371902823701
- Henry Cho, MDRancho Cucamonga, CA 917371710484746
- Katty ChouRancho Cucamonga, CA 917371023297934
- Linda Lee, M.D.Rancho Cucamonga, CA 917371336188838
- Xuan Nguyet Nguyen, M.D.Rancho Cucamonga, CA 917371871539551
- Theodore Gerard Caspe, MDRancho Cucamonga, CA 917391942349113
- Jeffrey Haga, DORancho Cucamonga, CA 917391902847320
- Jane Himmelvo, M.D.Rancho Cucamonga, CA 917391235170440
Common questions
What is Truongson Huu Nguyen, D.O.'s NPI number?
Truongson Huu Nguyen, D.O.'s National Provider Identifier (NPI) is 1629517792, issued on Feb 22, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Truongson Huu Nguyen, D.O. located?
The NPPES record lists a practice address at 6417 Haven Ave Ste 110, Rancho Cucamonga, CA, 91737. Phone: (909) 941-2273. Providers update this record themselves, so call before visiting.
How can I verify Truongson Huu Nguyen, D.O.'s license?
NPPES lists California license number 20A18287, 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 Truongson Huu Nguyen, D.O. prescribe under Medicare Part D?
In 2024, Truongson Huu Nguyen, D.O. had 463 Medicare Part D claims for 359 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.