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KATHERINE LE NGUYEN O.D.
NPI 1821549775
Optometrist in Redondo Beach, CA

Active since October 16, 2016PECOS Enrolled
1815 HAWTHORNE BLVD STE 236, REDONDO BEACH, CA 90278(310) 370-1618 Get Directions Write a Review

NPPES record last updated: November 18, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Nov 18, 2025, Oct 16, 2016 (2 updates tracked since 2016).

About Katherine Le Nguyen O.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE LE NGUYEN O.D. (NPI 1821549775) is an individual optometrist in Redondo Beach, California, licensed in California (33591) and active in the NPI registry since October 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821549775
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameKATHERINE LE NGUYENCredential: O.D.
Location Address1815 HAWTHORNE BLVD STE 236Redondo Beach, CA 90278-3437
Mailing Address1815 Hawthorne Blvd Ste 236Redondo Beach, CA 90278-3437
Phone(310) 370-1618
Sole ProprietorYes
Enumeration DateOctober 16, 2016
Last NPPES UpdateNovember 18, 20252 updates tracked since enumeration
NPPES CertifiedNovember 18, 2025
✔ NPI 1821549775 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CA · 33591
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
1815 HAWTHORNE BLVD STE 236, Redondo Beach, CA 90278
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine Le Nguyen O.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90278 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. NATALIE JUSTINA SKOKANDIC OD
Optometrist
1815 HAWTHORNE BLVD STE 236
REDONDO BEACH, CA 90278
Los Angeles County (310) 370-1618
SOUTHBAY GALLERIA OPTOMETRIC
Optometrist
1815 HAWTHORNE BLVD STE 236
REDONDO BEACH, CA 90278
Los Angeles County (310) 370-9598

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Nguyen's NPI number?

The NPI number for Katherine Nguyen is 1821549775. It was assigned to this individual provider in the NPPES registry on October 16, 2016.

Where is Katherine Nguyen located?

Katherine Nguyen practices at 1815 Hawthorne Blvd Ste 236, Redondo Beach, CA 90278. The listed phone number is (310) 370-1618.

What is Katherine Nguyen's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Katherine Nguyen enrolled in Medicare?

Yes. Katherine Nguyen is registered in the Medicare PECOS enrollment system.

What insurance does Katherine Nguyen accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 12 other insurers list Katherine Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Katherine Nguyen was last updated on November 18, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.