THOMAS CHAO O.D.
NPI 1801974860
Optometrist in Brooklyn, NY

Q: What is Thomas Chao's NPI number?

The NPI number for Thomas Chao is 1801974860. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Q: What is Thomas Chao'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 Thomas Chao was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 November 01, 2006PECOS EnrolledAccepts Medicare Assignment

7801 4TH AVE, BROOKLYN, NY 11209(718) 836-6661(718) 836-0801 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Thomas Chao O.d. NPPES

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

THOMAS CHAO O.D. (NPI 1801974860) is an individual optometrist in Brooklyn, New York, licensed in New York (004983) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1989).

NPPES Registry Identity

NPI1801974860

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameTHOMAS CHAOCredential: O.D.

Location Address7801 4TH AVEBrooklyn, NY 11209-3701

Mailing Address6254 97th Pl, Apt 3hRego Park, NY 11374-1346 · (718) 836-6661 · Fax (718) 836-0801

Phone(718) 836-6661

Fax(718) 836-0801

Sole ProprietorNo

Medical School CMSOtherGraduated 1989

Enumeration DateNovember 1, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1801974860 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 · 004983

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.

7801 4TH AVE, Brooklyn, NY 11209

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Other Identifiers 1

Medicare ID-Type UnspecifiedC45672NY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross Blue Shield of Wyoming, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Thomas Chao O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517862261

PECOS Enrollment IDI20031204001094

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 Thomas Chao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Open Door Family Medical Center, Inc.

27 mi

Federally Qualified Health Center (FQHC)

689 MAMARONECK AVE
Mamaroneck, NY 10543

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

NPI 1487194155 (914) 732-0233

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 11209 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$83.44 typical visit price

range $21.66 – $164.45

Typical copayment $20.86 (range $5.41 – $41.11)

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 4

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

DR. JOVIN C LOMBARDO M.D.

Ophthalmology

7801 4TH AVE
BROOKLYN, NY 11209

Kings County (718) 836-6661

JAMES J LOMBARDO M.D.

Ophthalmology

7801 4TH AVE
BROOKLYN, NY 11209

Kings County (718) 836-6661

LOMBARDO OPHTHALMOLOGY OF BAY RIDGE, P.C.

Ophthalmology

7801 4TH AVE
BROOKLYN, NY 11209

Kings County (718) 836-6661

DR. JOHN W LOMBARDO M.D.

Ophthalmology

7801 4TH AVE
BROOKLYN, NY 11209

Kings County (718) 836-6661

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 Thomas Chao's NPI number?

The NPI number for Thomas Chao is 1801974860. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Thomas Chao located?

Thomas Chao practices at 7801 4th Ave, Brooklyn, NY 11209. The listed phone number is (718) 836-6661.

What is Thomas Chao's specialty?

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

Is Thomas Chao enrolled in Medicare?

Yes. Thomas Chao is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Thomas Chao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Chao reassigns Medicare benefits to Open Door Family Medical Center, Inc. (Mamaroneck, NY). 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 Thomas Chao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Chao accept?

Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana and Oscar Health list Thomas Chao 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 Thomas Chao was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.