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DR. NGOC TRIEU O.D.
NPI 1245462472
Optometrist in Torrance, CA

Active since August 21, 2009PECOS Enrolled
3525 W CARSON ST STE 30A, TORRANCE, CA 90503(310) 370-0016 Get Directions Write a Review

NPPES record last updated: December 1, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Ngoc Trieu O.d. NPPES

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

DR. NGOC TRIEU O.D. (NPI 1245462472) is an individual optometrist in Torrance, California, licensed in California (13721) and active in the NPI registry since August 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1245462472
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. NGOC TRIEUCredential: O.D.
Location Address3525 W CARSON ST STE 30ATorrance, CA 90503-5738
Mailing Address3525 W Carson St Ste 30aTorrance, CA 90503-5738
Phone(310) 370-0016
Sole ProprietorNo
Enumeration DateAugust 21, 2009
Last NPPES UpdateDecember 1, 2021
✔ NPI 1245462472 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 · 13721
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.
3525 W CARSON ST STE 30A, Torrance, CA 90503
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Ngoc Trieu 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Ngoc Trieu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
4.3 mi
Health Maintenance Organization
25825 VERMONT AVE
Harbor City, CA 90710
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1598797011 (310) 325-5111
Thomas S Tooma M D A Professional Corporation
30 mi
Ophthalmology
4220 VON KARMAN AVE STE 100
Newport Beach, CA 92660
  • Reassigned Medicare billing, California enrollment
  • 48 clinicians in this Medicare group
NPI 1922129865 (492) 847-4289

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90503 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.

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 Ngoc Trieu's NPI number?

The NPI number for Ngoc Trieu is 1245462472. It was assigned to this individual provider in the NPPES registry on August 21, 2009.

Where is Ngoc Trieu located?

Ngoc Trieu practices at 3525 W Carson St Ste 30A, Torrance, CA 90503. The listed phone number is (310) 370-0016.

What is Ngoc Trieu's specialty?

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

Is Ngoc Trieu enrolled in Medicare?

Yes. Ngoc Trieu is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ngoc Trieu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ngoc Trieu reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Harbor City, CA) and Thomas S Tooma M D A Professional Corporation (Newport Beach, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ngoc Trieu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ngoc Trieu was last updated on December 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.