Cuong Viet Nguyen, MD
Internal Medicine Physician · Westminster, CA
Cuong Viet Nguyen, MD is an internal medicine physician with a practice address in Westminster, California, and NPI 1689625451, issued on May 15, 2006. Check the license (California A039154, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cuong Viet Nguyen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A039154 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9211 Bolsa Ave, Westminster, CA 92683
- Phone
- (714) 898-9966
- Enumerated
- May 15, 2006
- Record last updated
- May 2, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (714) 898-6174
- Medicaid ID
- A0391540 CA
- Medicare enrollment
- Enrolled (PECOS I20101021000480); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 9211 Bolsa Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Trung Dao, M.D.Specialist1821104423
- Dao Nguyen, MDInternal Medicine Physician1811948680
- Si Nguyen, DDSDentist1336202290
Verify Cuong Viet Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A039154Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,762 Medicare Part D claims for 189 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium448 claims
- Amlodipine Besylate278 claims
- Losartan Potassium223 claims
- Metformin Hcl146 claims
- Tamsulosin Hcl129 claims
- Metoprolol Succinate116 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.
Industry payments in 2024: $204.76
5 payments; by number, the most common kind was food and beverage; the largest payer was Leo Pharma Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Family Choice Aco IncWestminster, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cuong Viet Nguyen among 17,696 internal medicine physician records in California
Cuong Viet Nguyen, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1975 · median 2004 among the 11,065 with a school on file
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
43 internal medicine physician records list a practice address in Westminster
They are 43 of the 1,306 NPPES records with a practice address in Westminster, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Westminster → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Loc Bui, M.D.Westminster, CA 926831023081387
- Andy Ho, M.D.Westminster, CA 926831801850821
- Vu Le, M.D.Westminster, CA 926831013992791
- Dean Ngo, MDWestminster, CA 926831982690582
- Loan Ngo, M.D.Westminster, CA 926831386696144
- Phuc Nguyen, M.D.Westminster, CA 926831134123961
- Vuong Nguyen, M.D.Westminster, CA 926831093701690
- Hoa Nguyen, M.DWestminster, CA 926831619931763
Common questions
What is Cuong Viet Nguyen, MD's NPI number?
Cuong Viet Nguyen, MD's National Provider Identifier (NPI) is 1689625451, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cuong Viet Nguyen, MD located?
The NPPES record lists a practice address at 9211 Bolsa Ave, Westminster, CA, 92683. Phone: (714) 898-9966. Providers update this record themselves, so call before visiting.
How can I verify Cuong Viet Nguyen, MD's license?
NPPES lists California license number A039154, 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 Cuong Viet Nguyen, MD prescribe under Medicare Part D?
In 2024, Cuong Viet Nguyen, MD had 2,762 Medicare Part D claims for 189 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.