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

Emergency Medicine

Sergio A. Hernandez, MD

Works at hospitals in Glendora, CA · Covina, CA · California

Summary

Sergio A. Hernandez, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Glendora, CA and Covina, CA. NPI 1346404456. 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 Sergio A. Hernandez, 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
18Years since medical school (graduated 2008)
University Of California, San Francisco School Of MedicineMedical school
MaleGender (as listed)
Cep America - CaliforniaGroup practice

Quick answers

Which hospitals does Sergio A. Hernandez work at?
Medicare's official clinician data lists Sergio A. Hernandez at 2 hospitals: Emanate Health Foothill Presbyterian Hospital and Emanate Health Inter-Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sergio A. Hernandez see patients?
Medicare's clinician data lists 2 practice locations, including Covina, CA and Glendora, CA. Call before your visit to confirm the address.
What is Sergio A. Hernandez's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Sergio A. Hernandez accept Medicare assignment?
Yes. Medicare's clinician data says Sergio A. Hernandez 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 Sergio A. Hernandez?
(626) 331-7331, as listed in official Medicare / NPI Registry data.
What is Sergio A. Hernandez's NPI number?
1346404456. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sergio A. Hernandez works

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

Group practices

Medicare enrollment lists Sergio A. Hernandez 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 California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All emergency medicine doctors in California →

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Francisco School Of Medicine
Graduation year2008
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346404456
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