Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TAMMY NGUYEN OD
NPI 1245124346
Optometrist in Dallas, TX

Q: What is Tammy Nguyen's NPI number?

The NPI number for Tammy Nguyen is 1245124346. It was assigned to this individual provider in the NPPES registry on June 4, 2025.

Q: What is Tammy Nguyen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Tammy Nguyen was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.

Active since June 04, 2025PECOS Enrolled

8055 CHURCHILL WAY, DALLAS, TX 75251(469) 680-7561 Get Directions Write a Review

NPPES record last updated: October 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 15, 2026, Jun 4, 2025 (2 updates tracked since 2025).

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About Tammy Nguyen Od NPPES

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

TAMMY NGUYEN OD (NPI 1245124346) is an individual optometrist in Dallas, Texas, licensed in Texas (11424) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS and is a graduate of University Of Houston - College Of Optometry (2023).

NPPES Registry Identity

NPI1245124346

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameTAMMY NGUYENCredential: OD

Location Address8055 CHURCHILL WAYDallas, TX 75251-2149

Mailing Address8055 Churchill WayDallas, TX 75251-2149 · (469) 680-7561

Phone(469) 680-7561

Sole ProprietorNo

Medical School CMSUniversity Of Houston - College Of OptometryGraduated 2023

Enumeration DateJune 4, 2025

Last NPPES UpdateOctober 15, 20262 updates tracked since enumeration

NPPES CertifiedOctober 15, 2026

✔ NPI 1245124346 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 TX · 11424

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.

8055 CHURCHILL WAY, Dallas, TX 75251

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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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tammy Nguyen Od is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1355805805

PECOS Enrollment IDI20260715002184

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 Reassignment

Medicare enrollment records show Tammy Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Farah Hassam LLC

0.1 mi

Optometrist

8055 CHURCHILL WAY
Dallas, TX 75251

Reassigned Medicare billing, Texas enrollment
5 clinicians in this Medicare group

NPI 1194256164 (469) 680-7561

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 75251 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

$131.01 typical visit price

range $57.18 – $172.86

Typical copayment $32.75 (range $14.29 – $43.21)

Most-billed visit code 99204

Established Patient

$71.28 typical visit price

range $18.48 – $141.20

Typical copayment $17.82 (range $4.62 – $35.30)

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 8

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

COSTCO WHOLESALE CORPORATION

Hearing Aid Equipment