DR. GRACE KA-YUN WOO O.D.
NPI 1336204023
Optometrist in New York, NY

Q: What is Grace Woo's NPI number?

The NPI number for Grace Woo is 1336204023. It was assigned to this individual provider in the NPPES registry on December 25, 2006.

Q: What is Grace Woo'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 Grace Woo was last updated on July 11, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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 December 25, 2006PECOS Enrolled

205 E 64TH ST, SUITE 101, NEW YORK, NY 10065(212) 888-4100(212) 888-4111 Get Directions Write a Review

NPPES record last updated: July 11, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Grace Ka-yun Woo O.d. NPPES

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

DR. GRACE KA-YUN WOO O.D. (NPI 1336204023) is an individual optometrist in New York, New York, licensed in New York (007055) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336204023

Entity TypeIndividualFemale

Primary Taxonomy152W00000X

Provider Legal NameDR. GRACE KA-YUN WOOCredential: O.D.

Location Address205 E 64TH ST, SUITE 101New York, NY 10065-6635

Mailing Address205 E 64th St, Suite 101New York, NY 10065-6635 · (212) 888-4100 · Fax (212) 888-4111

Phone(212) 888-4100

Fax(212) 888-4111

Sole ProprietorYes

Enumeration DateDecember 25, 2006

Last NPPES UpdateJuly 11, 2011

✔ NPI 1336204023 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 NY · 007055

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.

205 E 64TH ST, New York, NY 10065

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Other Identifiers 1

Medicaid714554275AGA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Health Insurance, Oscar Health Maintenance Organization of Florida 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. Grace Ka-yun Woo 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 Reassignments

Medicare enrollment records show Grace Woo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sightrite Inc

3.9 mi

Optometrist

153 DIVISION AVE
Brooklyn, NY 11211

Reassigned Medicare billing, New York enrollment
75 clinicians in this Medicare group

NPI 1336562644 (718) 633-2455

Sight Services P.C.

12 mi

Optometrist

65 JAY ST
Newark, NJ 07103

Reassigned Medicare billing, New Jersey enrollment
Medicare enrollment name: Sight Services PC
17 clinicians in this Medicare group

NPI 1255720124 (718) 633-2455

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 10065 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

$150.24 typical visit price

range $65.69 – $198.19

Typical copayment $37.56 (range $16.42 – $49.54)

Most-billed visit code 99204

Established Patient

$81.44 typical visit price

range $21.20 – $160.66

Typical copayment $20.36 (range $5.30 – $40.16)

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 14

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

HARMON OPHTHALMOLOGY P.C

Ophthalmology

205 E 64TH ST, SUITE 101
NEW YORK, NY 10065

New York County (212) 888-4100

MS. NEENA MAHAJAN NP

Nurse Practitioner (Acute Care)

205 E 64TH ST
NEW YORK, NY 10065

New York County (646) 449-1000

MICHELLE WISNIEWSKI PA

Physician Assistant

205 E 64TH ST
NEW YORK, NY 10065

New York County (646) 449-1021

ROMAN ISAAC, MD

Clinic/Center (Medical Specialty)

205 E 64TH ST, SUITE 402
NEW YORK, NY 10065

New York County (212) 759-4553

GREGORY K HARMON MD

Ophthalmology

205 E 64TH ST, SUITE 101
NEW YORK, NY 10065

New York County (212) 888-4100

DR. STEPHANIE KU O.D.

Optometrist

205 E 64TH ST, SUITE 101
NEW YORK, NY 10065

New York County (212) 888-4100

JOSE MIGUEL FLORES MARTINEZ MD

Urology

205 E 64TH ST
NEW YORK, NY 10065

New York County (646) 449-1095

COLLEEN HANNON

Nurse Practitioner (Family)

205 E 64TH ST
NEW YORK, NY 10065

New York County (646) 888-4232

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 Grace Woo's NPI number?

The NPI number for Grace Woo is 1336204023. It was assigned to this individual provider in the NPPES registry on December 25, 2006.

Where is Grace Woo located?

Grace Woo practices at 205 E 64th St Suite 101, New York, NY 10065. The listed phone number is (212) 888-4100.

What is Grace Woo's specialty?

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

Is Grace Woo enrolled in Medicare?

Yes. Grace Woo is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Grace Woo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grace Woo reassigns Medicare benefits to 2 organizations: Sightrite Inc (Brooklyn, NY) and Sight Services P.C. (Newark, NJ). Each 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 Grace Woo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Grace Woo accept?

Health plans from Oscar Health, Oscar Health Insurance, Oscar Health Maintenance Organization of Florida, Oscar Health Plan of North Carolina, Inc and Oscar Health Plan, Inc. and 3 other insurers list Grace Woo 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 Grace Woo was last updated on July 11, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.