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DR. NGAN K TO O.D.
NPI 1902239965
Optometrist in San Antonio, TX

Active since August 14, 2013PECOS Enrolled
7239 SW LOOP 410, SAN ANTONIO, TX 78227(210) 623-1741(210) 623-1751 Get Directions Write a Review

NPPES record last updated: April 8, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Ngan K To O.d. NPPES

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

DR. NGAN K TO O.D. (NPI 1902239965) is an individual optometrist in San Antonio, Texas, licensed in Texas (8170TG) and active in the NPI registry since August 2013. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1902239965
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. NGAN K TOCredential: O.D.
Location Address7239 SW LOOP 410San Antonio, TX 78227
Mailing Address7239 Sw Loop 410San Antonio, TX 78227 · (210) 623-1741 · Fax (210) 623-1751
Phone(210) 623-1741
Fax(210) 623-1751
Sole ProprietorYes
Enumeration DateAugust 14, 2013
Last NPPES UpdateApril 8, 2014
✔ NPI 1902239965 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 · 8170TG
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.
7239 SW LOOP 410, San Antonio, TX 78227
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Louisiana 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)

Dr. Ngan K To 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 Reassignment

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

Longview Wellness Center Inc
286 mi
Federally Qualified Health Center (FQHC)
825 MEDICAL DR
Tyler, TX 75701
  • Reassigned Medicare billing, Texas enrollment
  • 127 clinicians in this Medicare group
NPI 1558957662 (903) 758-2610

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 78227 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
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.

WAL-MART STORES TEXAS, LLC
Eyewear Supplier
7239 SW LOOP 410
SAN ANTONIO, TX 78227
Bexar County (479) 277-1242
ISEE CLARITY, LLC
Optometrist
7239 SW LOOP 410
SAN ANTONIO, TX 78227
Bexar County (210) 623-1741

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 Ngan To's NPI number?

The NPI number for Ngan To is 1902239965. It was assigned to this individual provider in the NPPES registry on August 14, 2013.

Where is Ngan To located?

Ngan To practices at 7239 SW Loop 410, San Antonio, TX 78227. The listed phone number is (210) 623-1741.

What is Ngan To's specialty?

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

Is Ngan To enrolled in Medicare?

Yes. Ngan To is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ngan To's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ngan To reassigns Medicare benefits to Longview Wellness Center Inc (Tyler, TX). The 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 Ngan To's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ngan To accept?

Health plans from Anthem Blue Cross and Blue Shield, Baylor Scott and White Health Plan, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana and Blue Cross and Blue Shield of Texas and 9 other insurers list Ngan To 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 Ngan To was last updated on April 8, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.