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Hospitalist

Alexandra E. Thomson, MD

Works at hospitals in Los Angeles, CA · Santa Monica, CA · California

Summary

Alexandra E. Thomson, MD (Hospitalist) is listed by Medicare at 2 hospitals in Los Angeles, CA and Santa Monica, CA. NPI 1801374459. 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 Alexandra E. Thomson, 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

HospitalistPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
Mercer University School Of MedicineMedical school
FemaleGender (as listed)
The Regents of the University of CaliforniaGroup practice

Quick answers

Which hospitals does Alexandra E. Thomson work at?
Medicare's official clinician data lists Alexandra E. Thomson at 2 hospitals: Ronald Reagan UCLA Medical Center and Santa Monica - UCLA Med Ctr & Orthopaedic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Alexandra E. Thomson see patients?
Medicare's clinician data lists 3 practice locations, including Santa Monica, CA and Los Angeles, CA. Call before your visit to confirm the address.
What is Alexandra E. Thomson's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does Alexandra E. Thomson accept Medicare assignment?
Yes. Medicare's clinician data says Alexandra E. Thomson 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 Alexandra E. Thomson?
(310) 458-2381, as listed in official Medicare / NPI Registry data.
What is Alexandra E. Thomson's NPI number?
1801374459. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Alexandra E. Thomson works

Medicare's Facility Affiliation Data lists Alexandra E. Thomson 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 Alexandra E. Thomson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Alexandra E. Thomson as a member of this group (CMS data updated 2026-10-02).

  • The Regents of the University of California1,462 clinicians in the group

Specialties

Find other Hospitalist doctors in California →

Other hospitalists in Santa Monica

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

All hospitalists in Santa Monica →

Clinician information

CredentialMD
Medical schoolMercer University School Of Medicine
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801374459
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