Boris Trifunovic, M.D. PHD
Internal Medicine Physician · Santa Ana, CA
Boris Trifunovic, M.D. PHD is an internal medicine physician with a practice address in Santa Ana, California, and NPI 1487697249, issued on Jun 13, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Boris Trifunovic
- Credential
- M.D. PHD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 17321 MS
Self-reported in NPPES; status is on the state search - Practice location
- 3401 S Harbor Blvd, Santa Ana, CA 92704
- Phone
- (714) 427-7800
- Enumerated
- Jun 13, 2006
- Record last updated
- Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 01901035 MS
- Medicare enrollment
- Enrolled (PECOS I20111114000403); 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 3401 S Harbor Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Boris Trifunovic in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average internal medicine physician in 2024
663 Medicare Part D claims for 410 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Doxycycline Monohydrate104 claims
- Prednisone54 claims
- Albuterol Sulfate Hfa50 claims
- Mupirocin49 claims
- Amoxicillin-Clavulanate Potass29 claims
- Cephalexin29 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
- Southern California Permanente Medical GroupSanta Ana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Boris Trifunovic among 17,696 internal medicine physician records in California
Boris Trifunovic, M.D. PHD 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
- Graduated1988 · 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).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Santa Ana → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ronnie Alas, M.D.Santa Ana, CA 927041306267026
- Robert Castro, DOSanta Ana, CA 927041285777813
- Robin Hatam, D.O.Santa Ana, CA 927041194053785
- Iyad Houshan, M.D.Santa Ana, CA 927041497773287
- Wesam Houshan, MDSanta Ana, CA 927041356467112
- Ajay Meka, M.D.Santa Ana, CA 927041063527976
- Meena Meka, M.D.Santa Ana, CA 927041013338722
- Madhavi Mulye, M.D.Santa Ana, CA 927041205056470
Common questions
What is Boris Trifunovic, M.D. PHD's NPI number?
Boris Trifunovic, M.D. PHD's National Provider Identifier (NPI) is 1487697249, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Boris Trifunovic, M.D. PHD located?
The NPPES record lists a practice address at 3401 S Harbor Blvd, Santa Ana, CA, 92704. Phone: (714) 427-7800. Providers update this record themselves, so call before visiting.
How can I verify Boris Trifunovic, M.D. PHD's license?
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 Boris Trifunovic, M.D. PHD prescribe under Medicare Part D?
In 2024, Boris Trifunovic, M.D. PHD had 663 Medicare Part D claims for 410 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.