Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Benjamin J. Trevias, MD

Works at hospitals in San Diego, CA · California

Summary

Dr. Benjamin J. Trevias, MD is an emergency medicine doctor at 4647 Zion Ave, San Diego, CA 92120. Phone: (619) 528-5000. Accepts Medicare assignment. In 2024, Benjamin J. Trevias had 15 Original Medicare patients and 15 services. NPI 1215341862. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 4647 Zion Ave, San Diego, CA 92120 · Directions
  • Phone: (619) 528‑5000
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaiser Foundation Hospital - San Diego
  • Group practice: Southern California Permanente Medical Group
  • Medical school: George Washington University School Of Medicine · graduated 2014 (12 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Benjamin J. Trevias, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Benjamin J. Trevias accept Medicare assignment?
Yes. Medicare's clinician data says Benjamin J. Trevias accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Benjamin J. Trevias see?
In 2024, CMS data shows 15 Original Medicare patients and 15 services for Benjamin J. Trevias. This counts Original Medicare only and measures volume, not quality.
What is Benjamin J. Trevias's NPI number?
1215341862. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Benjamin J. Trevias, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients15
Services billed to Medicare15
Different services or procedures3
Participating Medicare providerYes
Average age of these patients61

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol73%

Hospitals where Benjamin J. Trevias works

Medicare's Facility Affiliation Data lists Benjamin J. Trevias at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Benjamin J. Trevias is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Benjamin J. Trevias as a member of this group (CMS data updated October 2, 2026).

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in San Diego

Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.

All emergency medicine doctors in San Diego →

Other clinicians in Southern California Permanente Medical Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year2014 (12 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1215341862
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians