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Pediatric Medicine

Sean R. Dornbush, DO

Works at hospitals in Orange, CA · California

Summary

Dr. Sean R. Dornbush, DO is a pediatrician at 101 The City Dr S, Orange, CA 92868. Phone: (714) 456-7890. Accepts Medicare assignment. NPI 1538798236. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Pediatrician (Medicare lists Pediatric Medicine)
  • Address: 101 The City Dr S, Orange, CA 92868 · Directions
  • Phone: (714) 456‑7890
  • Medicare: Accepts Medicare assignment
  • Hospital: UCI Health-Orange
  • Group practice: The Regents of the University of California-Irvine
  • Medical school: Lincoln Mem Univ, Debusk Col Of Osteopathic Med · graduated 2020 (6 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Sean R. Dornbush, 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 Sean R. Dornbush accept Medicare assignment?
Yes. Medicare's clinician data says Sean R. Dornbush 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 Sean R. Dornbush's NPI number?
1538798236. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sean R. Dornbush works

Medicare's Facility Affiliation Data lists Sean R. Dornbush 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.

  • UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Sean R. Dornbush is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sean R. Dornbush as a member of this group (CMS data updated October 2, 2026).

  • The Regents of the University of California-Irvine125 clinicians in the group

Specialties

Find other Pediatric Medicine doctors in California →

Other pediatricians in Orange

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

All pediatricians in Orange →

Other clinicians in The Regents of the University of California-Irvine

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

Clinician information

CredentialDO
Medical schoolLincoln Mem Univ, Debusk Col Of Osteopathic Med
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538798236
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians