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Emergency Medicine

Robert J. Katzer, MD

Works at hospitals in Orange, CA · California

Summary

Robert J. Katzer, MD (Emergency Medicine) is listed by Medicare at 1 hospital in Orange, CA. NPI 1467612580. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Robert J. Katzer, 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
May acceptAccepts Medicare assignment
18Years since medical school (graduated 2008)
Temple University School Of MedicineMedical school
MaleGender (as listed)
Regents of the University ofGroup practice (+1 more)

Quick answers

Which hospitals does Robert J. Katzer work at?
Medicare's official clinician data lists Robert J. Katzer at 1 hospital: UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Robert J. Katzer see patients?
Medicare's clinician data lists 2 practice locations, including Avalon, CA and Orange, CA. Call before your visit to confirm the address.
What is Robert J. Katzer's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Robert J. Katzer accept Medicare assignment?
Medicare's clinician data says Robert J. Katzer may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is the phone number for Robert J. Katzer?
(310) 510-0700, as listed in official Medicare / NPI Registry data.
What is Robert J. Katzer's NPI number?
1467612580. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Robert J. Katzer works

Medicare's Facility Affiliation Data lists Robert J. Katzer 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 Robert J. Katzer is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Robert J. Katzer as a member of these groups (CMS data updated 2026-10-02).

  • Regents of the University of129 clinicians in the group
  • Avalon Medical Development Corporation30 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Avalon

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

All emergency medicine doctors in Avalon →

Clinician information

CredentialMD
Medical schoolTemple University School Of Medicine
Graduation year2008
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1467612580
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