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Emergency Medicine

Jerome Zarraga, DO

Works at hospitals in Valencia, CA · Orange, CA · California

Summary

Jerome Zarraga, DO (Emergency Medicine) is listed by Medicare at 2 hospitals in Valencia, CA and Orange, CA. NPI 1346697893. 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 Jerome Zarraga, 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
10Years since medical school (graduated 2016)
MaleGender (as listed)
Comprehensive Care IncGroup practice

Quick answers

Which hospitals does Jerome Zarraga work at?
Medicare's official clinician data lists Jerome Zarraga at 2 hospitals: Henry Mayo Newhall Hospital and UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jerome Zarraga see patients?
Medicare's clinician data lists 1 practice location in Placentia, CA. Call before your visit to confirm the address.
What is Jerome Zarraga's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Jerome Zarraga accept Medicare assignment?
Yes. Medicare's clinician data says Jerome Zarraga 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 Jerome Zarraga?
(714) 993-2000, as listed in official Medicare / NPI Registry data.
What is Jerome Zarraga's NPI number?
1346697893. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jerome Zarraga works

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

Group practices

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

  • Comprehensive Care Inc7 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Placentia

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

All emergency medicine doctors in Placentia →

Clinician information

CredentialDO
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346697893
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