KATHERINE YAU, OPTOMETRIST, PLLC
NPI 1649033523
Optometrist in New York, NY

Q: What is Katherine Yau, Optometrist, PLLC's NPI number?

The NPI number for Katherine Yau, Optometrist, PLLC is 1649033523. It was assigned to this organization in the NPPES registry on February 2, 2024. The provider is doing business as New York Vision Associates.

Q: What is Katherine Yau, Optometrist, PLLC's specialty?

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

Active since February 02, 2024

1 W 34TH ST STE 402, NEW YORK, NY 10001(212) 213-3737 Get Directions Write a Review

NPPES record last updated: March 11, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 11, 2026, Dec 15, 2025 (2 updates tracked since 2025).

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About Katherine Yau, Optometrist, Pllc NPPES

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

KATHERINE YAU, OPTOMETRIST, PLLC (NPI 1649033523), doing business as New York Vision Associates, is a healthcare organization registered as an optometrist in New York, New York and active in the NPI registry since February 2024. The organization maintains 2 additional practice locations and lists Katherine Wong, Owner/optometrist, as its authorized official.

NPPES Registry Identity

NPI1649033523

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameKATHERINE YAU, OPTOMETRIST, PLLC

Location Address1 W 34TH ST STE 402New York, NY 10001-3011

Mailing Address185 Madison Ave Fl 2New York, NY 10016-0069 · (212) 213-3737 · Fax (212) 213-3787

Phone(212) 213-3737

Organization SubpartNo

Authorized OfficialKatherine WongOwner/optometrist · (212) 213-3737

Enumeration DateFebruary 2, 2024

Last NPPES UpdateMarch 11, 20262 updates tracked since enumeration

NPPES CertifiedMarch 11, 2026

✔ NPI 1649033523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

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.

1 W 34TH ST STE 402, New York, NY 10001

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Other Names 1

Doing Business AsNew York Vision Associates

Secondary Practice Locations 2

Location 11 W 34th St Ste 402New York, NY 10001-3011 · Phone (212) 213-3737 · Fax (212) 213-3787

Location 2185 Madison Ave Fl 2New York, NY 10016-0069 · Phone (212) 213-3737 · Fax (212) 213-3787

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, BlueCross BlueShield of Tennessee, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine Yau, Optometrist, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Katherine Yau, Optometrist, PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Katherine Yau, O.D.

Optometry

NPI 1720376056

1 W 34TH ST STE 402
New York, NY 10001

(212) 213-3737

✔ PECOS✔ Accepts MedicareSame address

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

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 Katherine Yau, Optometrist, PLLC's NPI number?

The NPI number for Katherine Yau, Optometrist, PLLC is 1649033523. It was assigned to this organization in the NPPES registry on February 2, 2024. The provider is doing business as New York Vision Associates.

Where is Katherine Yau, Optometrist, PLLC located?

Katherine Yau, Optometrist, PLLC is located at 1 W 34th St Ste 402, New York, NY 10001. The listed phone number is (212) 213-3737.

What is Katherine Yau, Optometrist, PLLC's specialty?

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

Is Katherine Yau, Optometrist, PLLC enrolled in Medicare?

Yes. Katherine Yau, Optometrist, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Katherine Yau, Optometrist, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Optometry) reassigns their Medicare billing to Katherine Yau, Optometrist, PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Katherine Yau, Optometrist, PLLC accept?

Health plans from Anthem Blue Cross and Blue Shield, BlueCross BlueShield of Tennessee and Oscar Health list Katherine Yau, Optometrist, PLLC 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 Katherine Yau, Optometrist, PLLC was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.