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Ophthalmology

Annie Nguyen, MD

Works at hospitals in Los Angeles, CA · California

Summary

Dr. Annie Nguyen, MD is an ophthalmologist at 1500 San Pablo St, Los Angeles, CA 90033. Phone: (800) 872-2273. Accepts Medicare assignment. In 2024, Annie Nguyen had 504 Original Medicare patients and 1,045 services. NPI 1851711733. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 1500 San Pablo St, Los Angeles, CA 90033 · Directions (5 more locations)
  • Phone: (800) 872‑2273
  • Medicare: Accepts Medicare assignment
  • Hospital: Keck Hospital of USC
  • Group practice: USC Care Medical Group Inc
  • Medical school: Harvard Medical School · graduated 2014 (12 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Annie Nguyen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Annie Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Annie Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Annie Nguyen see?
In 2024, CMS data shows 504 Original Medicare patients and 1,045 services for Annie Nguyen. This counts Original Medicare only and measures volume, not quality.
What is Annie Nguyen's NPI number?
1851711733. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Annie Nguyen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients504
Services billed to Medicare1,045
Different services or procedures44
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)349 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)140 services
  3. Established patient complete exam of visual system (92014)131 services
  4. Measurement of corneal curvature and depth of eye (92136)71 services
  5. Removal of cataract with insertion of prosthetic lens (66984)56 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure74%
  • Arthritis58%
  • Diabetes37%
  • Osteoporosis29%
  • Ischemic heart disease28%

Hospitals where Annie Nguyen works

Medicare's Facility Affiliation Data lists Annie Nguyen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Annie Nguyen is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Annie Nguyen as a member of this group (CMS data updated October 2, 2026).

  • USC Care Medical Group Inc1,380 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 →

Other clinicians in USC Care Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1851711733
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians