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

Emergency Medicine

Elvin K. Diaz, DO

Works at hospitals in Hanford, CA · Reedley, CA · Tulare, CA … · California

Summary

Elvin K. Diaz, DO (Emergency Medicine) is listed by Medicare at 4 hospitals in Hanford, CA, Reedley, CA and Tulare, CA and other places. NPI 1235766445. 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 Elvin K. Diaz, 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 Elvin K. Diaz work at?
Medicare's official clinician data lists Elvin K. Diaz at 4 hospitals: Adventist Health Hanford, Adventist Health Reedley, Adventist Health Tulare and Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Elvin K. Diaz see patients?
Medicare's clinician data lists 2 practice locations, including Reedley, CA and Tulare, CA. Call before your visit to confirm the address.
What is Elvin K. Diaz's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Elvin K. Diaz accept Medicare assignment?
Yes. Medicare's clinician data says Elvin K. Diaz 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 Elvin K. Diaz?
(559) 638-8155, as listed in official Medicare / NPI Registry data.
What is Elvin K. Diaz's NPI number?
1235766445. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Elvin K. Diaz works

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

Group practices

Medicare enrollment lists Elvin K. Diaz 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 Reedley

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

All emergency medicine doctors in Reedley →

Clinician information

CredentialDO
Graduation year2020
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1235766445
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