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Ophthalmology

Garrick W. Chak, MD

Sees patients in Los Angeles, CA · California

Summary

Garrick W. Chak, MD (Ophthalmology) is enrolled with Medicare at 1 practice location in Los Angeles, CA. NPI 1497047526. 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 Garrick W. Chak, 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
16Years since medical school (graduated 2010)
University Of Rochester School Of Medicine And DentistryMedical school
MaleGender (as listed)
Southern California Permanente Medical GroupGroup practice

Quick answers

Where does Garrick W. Chak see patients?
Medicare's clinician data lists 1 practice location in Los Angeles, CA. Call before your visit to confirm the address.
What is Garrick W. Chak's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Garrick W. Chak accept Medicare assignment?
Yes. Medicare's clinician data says Garrick W. Chak 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 Garrick W. Chak?
(800) 954-8000, as listed in official Medicare / NPI Registry data.
What is Garrick W. Chak's NPI number?
1497047526. 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 Garrick W. Chak is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Garrick W. Chak 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 Ophthalmology doctors in California →

Other ophthalmologists in Los Angeles

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

All ophthalmologists in Los Angeles →

Clinician information

CredentialMD
Medical schoolUniversity Of Rochester School Of Medicine And Dentistry
Graduation year2010
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1497047526
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