DR. SYLVIAN HIEN UNG O.D.
NPI 1659338291
Optometrist in Austin, TX

Q: What is Sylvian Ung's NPI number?

The NPI number for Sylvian Ung is 1659338291. It was assigned to this individual provider in the NPPES registry on April 27, 2006.

Q: What is Sylvian Ung'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 Sylvian Ung was last updated on February 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since April 27, 2006

1700 S MO PAC EXPY, AUSTIN, TX 78746(512) 327-7000(512) 314-1660 Get Directions Write a Review

NPPES record last updated: February 23, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 23, 2021, Jun 2, 2020, Mar 22, 2016 (3 updates tracked since 2016).

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About Dr. Sylvian Hien Ung O.d. NPPES

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

DR. SYLVIAN HIEN UNG O.D. (NPI 1659338291) is an individual optometrist in Austin, Texas, licensed in Texas (6802TG) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1659338291

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameDR. SYLVIAN HIEN UNGCredential: O.D.

Location Address1700 S MO PAC EXPYAustin, TX 78746

Mailing Address5717 Balcones DrAustin, TX 78731-4203 · (512) 327-7000 · Fax (512) 314-1660

Phone(512) 327-7000

Fax(512) 314-1660

Sole ProprietorNo

Enumeration DateApril 27, 2006

Last NPPES UpdateFebruary 23, 20213 updates tracked since enumeration

NPPES CertifiedFebruary 23, 2021

✔ NPI 1659338291 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

Licenses✔ Licensed in TX · 6802TG✔ Licensed in GA · OPT001741

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.

1700 S MO PAC EXPY, Austin, TX 78746

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Other Providers at the Same Location NPPES 5

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

DR. ROBIN KAYE WATSON O.D.

Optometrist