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DR. DIEM NGOC TRAN O.D.
NPI 1629065792
Optometrist in Brea, CA

Active since October 04, 2005PECOS Enrolled
605 E IMPERIAL HWY, SUITE C, BREA, CA 92821(714) 460-3489(714) 257-1662 Get Directions Write a Review

NPPES record last updated: September 19, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Diem Ngoc Tran O.d. NPPES

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

DR. DIEM NGOC TRAN O.D. (NPI 1629065792) is an individual optometrist in Brea, California, licensed in California (12660T) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629065792
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. DIEM NGOC TRANCredential: O.D.
Location Address605 E IMPERIAL HWY, SUITE CBrea, CA 92821-5627
Mailing Address17588 Ivy PlaceFountain Valley, CA 92708-7723 · (714) 460-3489 · Fax (714) 257-1662
Phone(714) 460-3489
Fax(714) 257-1662
Sole ProprietorYes
Enumeration DateOctober 4, 2005
Last NPPES UpdateSeptember 19, 2018
✔ NPI 1629065792 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 · 12660T
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.
605 E IMPERIAL HWY, Brea, CA 92821
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma 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)

Dr. Diem Ngoc Tran 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 92821 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.

VISIONCARE OF CALIFORNIA
Optometrist
605 E IMPERIAL HWY, C
BREA, CA 92821
Orange County (714) 257-1660
MELODY F. VEGA
Optometrist
605 E IMPERIAL HWY, SUITE C
BREA, CA 92821
Orange County (714) 257-1660

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 Diem Tran's NPI number?

The NPI number for Diem Tran is 1629065792. It was assigned to this individual provider in the NPPES registry on October 4, 2005.

Where is Diem Tran located?

Diem Tran practices at 605 E Imperial Hwy Suite C, Brea, CA 92821. The listed phone number is (714) 460-3489.

What is Diem Tran's specialty?

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

Is Diem Tran enrolled in Medicare?

Yes. Diem Tran is registered in the Medicare PECOS enrollment system.

What insurance does Diem Tran accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Diem Tran 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 Diem Tran was last updated on September 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.