Brian Linh Nguyen, M.D.
Internal Medicine Physician · Sun City, CA
Brian Linh Nguyen, M.D. is an internal medicine physician with a practice address in Sun City, California, and NPI 1851314512, issued on Jul 25, 2006. Check the license (California A53427, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Linh Nguyen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A53427 CA
Self-reported in NPPES; status is on the state search - Practice location
- 29798 Haun RD, Sun City, CA 92586
- Phone
- (951) 301-9339
- Enumerated
- Jul 25, 2006
- Record last updated
- Dec 21, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (951) 301-3980
- Medicaid IDs
- 00A534271 CA
00A534270 CA - Medicare enrollment
- Enrolled (PECOS I20060214000481); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 29798 Haun RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Linda Evans, MDInternal Medicine Physician1891896775
- Edivina Gonzales, M.D.Internal Medicine Physician1386670479
- Patrick Gonzales, M.D.Internal Medicine Physician1194751289
- Lynda Molstad, DDSGeneral Practice Dentistry1225148265
Verify Brian Linh Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A53427Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.4 times the Medicare Part D claims of the average internal medicine physician in 2024
13,822 Medicare Part D claims for 1,427 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 440 claims were for opioids.
Most prescribed
- Atorvastatin Calcium741 claims
- Amlodipine Besylate468 claims
- Levothyroxine Sodium443 claims
- Losartan Potassium368 claims
- Rosuvastatin Calcium359 claims
- Pantoprazole Sodium315 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: $1,538.58
23 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, 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
- Brian L Nguyen MD IncTemecula, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Linh Nguyen among 17,696 internal medicine physician records in California
Brian Linh Nguyen, M.D. 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
- Graduated1993 · median 2004 among the 11,065 with a school on file
- Record last updated2011 · 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).
13 internal medicine physician records list a practice address in Sun City
They are 13 of the 137 NPPES records with a practice address in Sun City, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sun City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tomas Araneta, M.D.Menifee, CA 925861952419970
- Duane Darnell, DOSun City, CA 925861831199728
- Linda Evans, MDSun City, CA 925861891896775
- Edivina Gonzales, M.D.Sun City, CA 925861386670479
- Patrick Gonzales, M.D.Sun City, CA 925861194751289
- James Krieg, M.D.Sun City, CA 925861568431120
- Richard Lam, MDSun City, CA 925861003830191
- Stephen Nguyen, MDSun City, CA 925861619976644
Common questions
What is Brian Linh Nguyen, M.D.'s NPI number?
Brian Linh Nguyen, M.D.'s National Provider Identifier (NPI) is 1851314512, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brian Linh Nguyen, M.D. located?
The NPPES record lists a practice address at 29798 Haun RD, Sun City, CA, 92586. Phone: (951) 301-9339. Providers update this record themselves, so call before visiting.
How can I verify Brian Linh Nguyen, M.D.'s license?
NPPES lists California license number A53427, 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 Brian Linh Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Brian Linh Nguyen, M.D. had 13,822 Medicare Part D claims for 1,427 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.