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Emergency Medicine

Matthew M. Thomas, MD

Works at hospitals in San Diego, CA · California

Summary

Matthew M. Thomas, MD (Emergency Medicine) is listed by Medicare at 1 hospital in San Diego, CA. NPI 1922079110. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Matthew M. Thomas, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
26Years since medical school (graduated 2000)
Columbia University College Of Physicians And SurgeonsMedical school
MaleGender (as listed)
San Diego Emergency Physicians IncGroup practice

Quick answers

Which hospitals does Matthew M. Thomas work at?
Medicare's official clinician data lists Matthew M. Thomas at 1 hospital: Sharp Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Matthew M. Thomas see patients?
Medicare's clinician data lists 1 practice location in San Diego, CA. Call before your visit to confirm the address.
What is Matthew M. Thomas's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Matthew M. Thomas accept Medicare assignment?
Yes. Medicare's clinician data says Matthew M. Thomas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Matthew M. Thomas?
(858) 939-3400, as listed in official Medicare / NPI Registry data.
What is Matthew M. Thomas's NPI number?
1922079110. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Matthew M. Thomas works

Medicare's Facility Affiliation Data lists Matthew M. Thomas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Matthew M. Thomas is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Matthew M. Thomas as a member of this group (CMS data updated 2026-10-02).

  • San Diego Emergency Physicians Inc39 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 →

Clinician information

CredentialMD
Medical schoolColumbia University College Of Physicians And Surgeons
Graduation year2000
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1922079110
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians