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

General Surgery

Thomas Arnold, MD

Works at hospitals in Redlands, CA · Banning, CA · California

Summary

Thomas Arnold, MD (General Surgery) is listed by Medicare at 2 hospitals in Redlands, CA and Banning, CA. NPI 1497043558. 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 Thomas Arnold, 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

General SurgeryPrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
MaleGender (as listed)
Redlands Surgical AssociatesGroup practice

Quick answers

Which hospitals does Thomas Arnold work at?
Medicare's official clinician data lists Thomas Arnold at 2 hospitals: Redlands Community Hospital and San Gorgonio Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
What is Thomas Arnold's specialty?
Medicare lists General Surgery as the primary specialty.
Does Thomas Arnold accept Medicare assignment?
Yes. Medicare's clinician data says Thomas Arnold 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 Thomas Arnold's NPI number?
1497043558. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Thomas Arnold works

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

Group practices

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

  • Redlands Surgical Associates3 clinicians in the group

Specialties

Find other General Surgery doctors in California →

Other general surgeons in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All general surgeons in California →

Clinician information

CredentialMD
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1497043558
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