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General Surgery

Deron J. Tessier, MD

Sees patients in Riverside, CA · Palm Springs, CA · California

Summary

Dr. Deron J. Tessier, MD is a general surgeon at 10800 Magnolia Ave, Riverside, CA 92505. Phone: (951) 353-2000. Accepts Medicare assignment. NPI 1902881469. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 10800 Magnolia Ave, Riverside, CA 92505 · Directions (1 more location)
  • Phone: (951) 353‑2000
  • Medicare: Accepts Medicare assignment
  • Group practice: Southern California Permanente Medical Group
  • Medical school: University Of California, Irvine, California College Of Medicine · graduated 2000 (26 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Deron J. Tessier, 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 Deron J. Tessier accept Medicare assignment?
Yes. Medicare's clinician data says Deron J. Tessier 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.
What is Deron J. Tessier's NPI number?
1902881469. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

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

Group practices

Medicare enrollment lists Deron J. Tessier 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 General Surgery doctors in California →

Other general surgeons in Riverside

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

All general surgeons in Riverside →

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 schoolUniversity Of California, Irvine, California College Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1902881469
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians