Brian Trinh, DO
Internal Medicine Physician · Chula Vista, CA
Brian Trinh, DO is an internal medicine physician with a practice address in Chula Vista, California, and NPI 1518545946, issued on Mar 29, 2021. Check the license (California 20A21497, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Trinh
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A21497 CA
Self-reported in NPPES; status is on the state search - Practice location
- 435 H St, Chula Vista, CA 91910
- Phone
- (858) 260-7825
- Enumerated
- Mar 29, 2021
- Record last updated
- Jul 22, 2024
- Medicare enrollment
- Enrolled (PECOS I20240905003588); 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 435 H St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brian Trinh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A21497Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
165 Medicare Part D claims for 41 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Metformin Hcl18 claims
- Losartan Potassium15 claims
- Atorvastatin Calcium12 claims
- Gabapentin11 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
- Scripps Health Inpatient Providers Medical Group IncChula Vista, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Trinh among 17,696 internal medicine physician records in California
Brian Trinh, DO 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 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2021 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 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).
81 internal medicine physician records list a practice address in Chula Vista
They are 81 of the 5,329 NPPES records with a practice address in Chula Vista, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Chula Vista → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andres BustamanteChula Vista, CA 919101720199227
- Michael Chambers, M.D.Chula Vista, CA 919101740298843
- Rocio Flores, MDChula Vista, CA 919101881607067
- Hector Heredia-Martinez, M.D.Chula Vista, CA 919101699882365
- Alejandro Hinojosa-Valencia, MDChula Vista, CA 919101083701411
- Tom-Oliver Klein, MDChula Vista, CA 919101235161787
- Perry Montoya, M.DChula Vista, CA 919101003826256
- Taikeun Park, MDChula Vista, CA 919101831175918
Common questions
What is Brian Trinh, DO's NPI number?
Brian Trinh, DO's National Provider Identifier (NPI) is 1518545946, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Brian Trinh, DO located?
The NPPES record lists a practice address at 435 H St, Chula Vista, CA, 91910. Phone: (858) 260-7825. Providers update this record themselves, so call before visiting.
How can I verify Brian Trinh, DO's license?
NPPES lists California license number 20A21497, 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 Trinh, DO prescribe under Medicare Part D?
In 2024, Brian Trinh, DO had 165 Medicare Part D claims for 41 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.