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

Ophthalmology

Barbara Shang, MD

Sees patients in Irvine, CA · California

Summary

Barbara Shang, MD (Ophthalmology) is enrolled with Medicare at 1 practice location in Irvine, CA. NPI 1316047228. 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 Barbara Shang, 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

OphthalmologyPrimary specialty
YesAccepts Medicare assignment
29Years since medical school (graduated 1997)
University Of California, Geffen School Of MedicineMedical school
FemaleGender (as listed)

Quick answers

Where does Barbara Shang see patients?
Medicare's clinician data lists 1 practice location in Irvine, CA. Call before your visit to confirm the address.
What is Barbara Shang's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Barbara Shang accept Medicare assignment?
Yes. Medicare's clinician data says Barbara Shang 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 Barbara Shang?
(949) 726-1888, as listed in official Medicare / NPI Registry data.
What is Barbara Shang's NPI number?
1316047228. 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 Barbara Shang is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Ophthalmology doctors in California →

Other ophthalmologists in Irvine

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

All ophthalmologists in Irvine →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year1997
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1316047228
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