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Gastroenterology

Paul Chang, MD

Sees patients in Los Angeles, CA · Santa Ana, CA · Anaheim, CA · California

Summary

Paul Chang, MD (Gastroenterology) is enrolled with Medicare at 5 practice locations in Los Angeles, CA, Santa Ana, CA and Anaheim, CA. NPI 1619104460. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Paul 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
YesOffers telehealth
17Years since medical school (graduated 2009)
MaleGender (as listed)
Southern California Permanente Medical GroupGroup practice

Quick answers

Where does Paul Chang see patients?
Medicare's clinician data lists 5 practice locations, including Los Angeles, CA, Santa Ana, CA and Anaheim, CA. Call before your visit to confirm the address.
What is Paul Chang's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does Paul Chang accept Medicare assignment?
Yes. Medicare's clinician data says Paul 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.
Does Paul Chang offer telehealth?
Medicare's clinician data says Paul Chang offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Paul Chang?
(323) 783-4011, as listed in official Medicare / NPI Registry data.
What is Paul Chang's NPI number?
1619104460. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Paul Chang is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other Gastroenterology doctors in California →

Other gastroenterologists in Los Angeles

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

All gastroenterologists in Los Angeles →

Clinician information

CredentialMD
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1619104460
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians