NPPES file of Aug 9, 2026

Nancy Luong, O.D.

Optometrist · Los Angeles, CA

Nancy Luong, O.D. is an optometrist with a practice address in Los Angeles, California, and NPI 1336424928, issued on Oct 15, 2011. Check the license (California 14216, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336424928
Name
Nancy Luong
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
14216 CA
Self-reported in NPPES; status is on the state search
Practice location
4403 S Vermont Ave, Los Angeles, CA 90037
Phone
(323) 232-1234
Enumerated
Oct 15, 2011
Record last updated
Jan 20, 2026
Fax
(323) 232-3789
Medicare enrollment
Enrolled (PECOS I20120413000047); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 8,308 in California → Look up another NPI →

Also registered at 4403 S Vermont Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sylvia Arcos, ODOptometrist1336207232
  2. Parinder Dhillon, O.D.Optometrist1053687764
  3. Ann Duong, ODOptometrist1750397691
  4. Virginia Estrada, ODOptometrist1679728927
  5. Lilia Gelfand, ODOptometrist1063560076
  6. Miguel Guerrero, ODOptometrist1659387595

Verify Nancy Luong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 14216    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Bills Medicare through one group practice

  1. Harold Katzman M D IncLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nancy Luong among 8,308 optometrist records in California

Nancy Luong, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 61% of them.

  • NPI issued2011 · 61% of these records are older, 36% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2011 · median 2008 among the 3,573 with a school on file
  • Record last updated2026 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in California

There are 8,308 optometrist records in California.

All 8,308 in California → Every provider in Los Angeles → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Sylvia Arcos, ODLos Angeles, CA 900371336207232
  2. Tony Carnevali, O.D.Los Angeles, CA 900371760479497
  3. Melissa Contreras, O.D.Los Angeles, CA 900371376855502
  4. Parinder Dhillon, O.D.Los Angeles, CA 900371053687764
  5. Ann Duong, ODLos Angeles, CA 900371750397691
  6. Gail Ellias, O.D.Los Angeles, CA 900371285671594
  7. Virginia Estrada, ODLos Angeles, CA 900371679728927
  8. Lilia Gelfand, ODLos Angeles, CA 900371063560076

Common questions

What is Nancy Luong, O.D.'s NPI number?

Nancy Luong, O.D.'s National Provider Identifier (NPI) is 1336424928, issued on Oct 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Nancy Luong, O.D. located?

The NPPES record lists a practice address at 4403 S Vermont Ave, Los Angeles, CA, 90037. Phone: (323) 232-1234. Providers update this record themselves, so call before visiting.

How can I verify Nancy Luong, O.D.'s license?

NPPES lists California license number 14216, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.