John Truong, M.D.
Internal Medicine Physician · Santa Clara, CA
John Truong, M.D. is an internal medicine physician with a practice address in Santa Clara, California, and NPI 1972894707, issued on Apr 27, 2011. Check the license (California A123151, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Truong
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A123151 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2734 EL Camino Real, Santa Clara, CA 95051
- Phone
- (408) 241-3801
- Enumerated
- Apr 27, 2011
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141020001725); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2011
- 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 2734 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kathleen Coquia, D.OFamily Medicine Physician1447784400
- Saroja Dandamudi, M.D.Internal Medicine Physician1891768826
- Emanuel Elias, M.D.Family Medicine Physician1376860395
- Asma Habib, MDInternal Medicine Physician1033225784
Verify John Truong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A123151Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,063 Medicare Part D claims for 331 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Atorvastatin Calcium188 claims
- Lisinopril111 claims
- Amlodipine Besylate99 claims
- Losartan Potassium90 claims
- Tamsulosin Hcl83 claims
- Fluticasone Propionate71 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
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Truong among 17,696 internal medicine physician records in California
John Truong, 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 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
140 internal medicine physician records list a practice address in Santa Clara
They are 140 of the 3,436 NPPES records with a practice address in Santa Clara, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Clara → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Emily Cabebe, MDSanta Clara, CA 950511356307474
- Saroja Dandamudi, M.D.Santa Clara, CA 950511891768826
- Richard Delfs, MDSanta Clara, CA 950511417034372
- Asma Habib, MDSanta Clara, CA 950511033225784
- Lynn Huang, MDSanta Clara, CA 950511073690913
- Vijay Jain, MDSanta Clara, CA 950511073520342
- David Juan, M.D.Santa Clara, CA 950511205877222
- Parul Kumar, MDSanta Clara, CA 950511538176755
Common questions
What is John Truong, M.D.'s NPI number?
John Truong, M.D.'s National Provider Identifier (NPI) is 1972894707, issued on Apr 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is John Truong, M.D. located?
The NPPES record lists a practice address at 2734 EL Camino Real, Santa Clara, CA, 95051. Phone: (408) 241-3801. Providers update this record themselves, so call before visiting.
How can I verify John Truong, M.D.'s license?
NPPES lists California license number A123151, 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 John Truong, M.D. prescribe under Medicare Part D?
In 2024, John Truong, M.D. had 2,063 Medicare Part D claims for 331 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.