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Gastroenterology

Kenneth J. Chang, MD

Works at hospitals in Newport Beach, CA · California

Summary

Kenneth J. Chang, MD (Gastroenterology) is listed by Medicare at 1 hospital in Newport Beach, CA. NPI 1518047604. 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 Kenneth J. Chang, 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

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
41Years since medical school (graduated 1985)
Warren Alpert Medical School Of Brown UniversityMedical school
MaleGender (as listed)
Hoag ClinicGroup practice

Quick answers

Which hospitals does Kenneth J. Chang work at?
Medicare's official clinician data lists Kenneth J. Chang at 1 hospital: Hoag Memorial Hospital Presbyterian. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Kenneth J. Chang see patients?
Medicare's clinician data lists 3 practice locations, including Newport Beach, CA and San Clemente, CA. Call before your visit to confirm the address.
What is Kenneth J. Chang's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does Kenneth J. Chang accept Medicare assignment?
Yes. Medicare's clinician data says Kenneth J. Chang 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 Kenneth J. Chang?
(949) 829-5533, as listed in official Medicare / NPI Registry data.
What is Kenneth J. Chang's NPI number?
1518047604. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kenneth J. Chang works

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

Group practices

Medicare enrollment lists Kenneth J. Chang as a member of this group (CMS data updated 2026-10-02).

  • Hoag Clinic460 clinicians in the group

Specialties

Find other Gastroenterology doctors in California →

Other gastroenterologists in Newport Beach

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

All gastroenterologists in Newport Beach →

Clinician information

CredentialMD
Medical schoolWarren Alpert Medical School Of Brown University
Graduation year1985
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1518047604
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