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

Emergency Medicine

Leo Viray, MD

Works at hospitals in Santa Ana, CA · California

Summary

Leo Viray, MD (Emergency Medicine) is listed by Medicare at 1 hospital in Santa Ana, CA. NPI 1932729738. 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 Leo Viray, 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
6Years since medical school (graduated 2020)
MaleGender (as listed)
Cep America - CaliforniaGroup practice

Quick answers

Which hospitals does Leo Viray work at?
Medicare's official clinician data lists Leo Viray at 1 hospital: Orange County Global Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Leo Viray see patients?
Medicare's clinician data lists 1 practice location in Santa Ana, CA. Call before your visit to confirm the address.
What is Leo Viray's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Leo Viray accept Medicare assignment?
Yes. Medicare's clinician data says Leo Viray 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 Leo Viray?
(714) 835-3555, as listed in official Medicare / NPI Registry data.
What is Leo Viray's NPI number?
1932729738. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Leo Viray works

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

Group practices

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

  • Cep America - California1,292 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Santa Ana

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

All emergency medicine doctors in Santa Ana →

Clinician information

CredentialMD
Graduation year2020
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932729738
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