Trang Nguyen, D.O.
Internal Medicine Physician · Wildomar, CA
Trang Nguyen, D.O. is an internal medicine physician with a practice address in Wildomar, California, and NPI 1861836207, issued on Apr 27, 2013. Check the license (California 20A15645, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Trang Nguyen
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A15645 CA
Self-reported in NPPES; status is on the state search - Practice location
- 36485 Inland Valley Dr, Wildomar, CA 92595
- Phone
- (951) 304-7187
- Enumerated
- Apr 27, 2013
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170925003620); 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 36485 Inland Valley Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jillian Bennett, ACNPEmergency Registered Nurse1306423496
- Jennine Borchert, P.A.-C.Emergency Medicine Physician1912012600
- Lisa Bornmann, P.A.-CPhysician Assistant1083729891
- Terry Cartell, P.T.Physical Therapist1851518385
- A Davila, M.D.Emergency Medicine Physician1508808544
- Joseph Demattia, P.A.-CPhysician Assistant1265547087
Verify Trang Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A15645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
110 Medicare Part D claims for 57 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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
- Acute Care Associates OF California PCWildomar, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Trang Nguyen among 17,696 internal medicine physician records in California
Trang Nguyen, D.O. 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2012 · median 2004 among the 11,065 with a school on file
- Record last updated2018 · 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).
12 internal medicine physician records list a practice address in Wildomar
They are 12 of the 937 NPPES records with a practice address in Wildomar, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Wildomar → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pranav Barve, M.D.Wildomar, CA 925951972899839
- Kevin ChandrasenaWildomar, CA 925951144614447
- Elvis ChernyshovWildomar, CA 925951154797462
- Danny Nguyen, D.OWildomar, CA 925951073046926
- Norman Orr, D.O.Wildomar, CA 925951871859553
- Jee-Hyon Park, M.D.Wildomar, CA 925951306006192
- Purnima Patel, MDWildomar, CA 925951023054269
- Priyanka Patel, M.D.Wildomar, CA 925951275945230
Common questions
What is Trang Nguyen, D.O.'s NPI number?
Trang Nguyen, D.O.'s National Provider Identifier (NPI) is 1861836207, issued on Apr 27, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Trang Nguyen, D.O. located?
The NPPES record lists a practice address at 36485 Inland Valley Dr, Wildomar, CA, 92595. Phone: (951) 304-7187. Providers update this record themselves, so call before visiting.
How can I verify Trang Nguyen, D.O.'s license?
NPPES lists California license number 20A15645, 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 Trang Nguyen, D.O. prescribe under Medicare Part D?
In 2024, Trang Nguyen, D.O. had 110 Medicare Part D claims for 57 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.