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Emergency Medicine

Matthew Ishiki, MD

Works at hospitals in Bakersfield, CA · Delano, CA · Hanford, CA … · California

Summary

Matthew Ishiki, MD (Emergency Medicine) is listed by Medicare at 5 hospitals in Bakersfield, CA, Delano, CA and Hanford, CA and other places. NPI 1023767332. 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 Matthew Ishiki, 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
5Years since medical school (graduated 2021)
University Of California, Davis School Of MedicineMedical school
MaleGender (as listed)
Cep America - CaliforniaGroup practice

Quick answers

Which hospitals does Matthew Ishiki work at?
Medicare's official clinician data lists Matthew Ishiki at 5 hospitals: Adventist Health Bakersfield, Adventist Health Delano, Adventist Health Hanford, Adventist Health Tulare and Kaweah Health Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Matthew Ishiki see patients?
Medicare's clinician data lists 1 practice location in Hanford, CA. Call before your visit to confirm the address.
What is Matthew Ishiki's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Matthew Ishiki accept Medicare assignment?
Yes. Medicare's clinician data says Matthew Ishiki 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 Matthew Ishiki?
(559) 582-9000, as listed in official Medicare / NPI Registry data.
What is Matthew Ishiki's NPI number?
1023767332. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Matthew Ishiki works

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

Group practices

Medicare enrollment lists Matthew Ishiki 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 Hanford

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

All emergency medicine doctors in Hanford →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Davis School Of Medicine
Graduation year2021
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1023767332
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