Doctor profile · Federal record

Dr. Thomas Chao, O.D.

Optometrist (CMS: Optometry) · Brooklyn, NY

  • NPI 1801974860
  • Accepts Medicare
  • 37 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
7801 4Th Ave
Brooklyn, NY 112093701
(718) 836-6661
fax (718) 836-0801
Mailing address
6254 97Th Pl, Apt 3H
Rego Park, NY 113741346

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
New York #004983

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801974860. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
81
Distinct HCPCS
3
Medicare allowed
$8,886
HCPCS Description Services Patients Avg allowed
92012 Established patient problem focused exam of visual system 41 41 $105
92014 Established patient complete exam of visual system 28 28 $146
92133 Imaging of optic nerve 12 11 $43

In context: peer comparison

Among 78 peers in this city , average services per provider: 112. This provider delivers 0.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
715
Patients
226
Total drug cost
$35,790
Drug Type Claims Patients Total cost
Latanoprost Generic 294 77 $5,039
Brimonidine Tartrate Generic 114 37 $2,115
Timolol Maleate Generic 72 24 $3,968
Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) Brand 50 41 $781
Azelastine Hcl Generic 45 15 $1,114
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 37 0 $1,015
Sulfacetamide-Prednisolone (Sulfacetamide/Prednisolone Sp) Brand 27 21 $317
Prednisolone Acetate Generic 21 0 $1,492
Lumigan (Bimatoprost) Brand 16 0 $4,574
Restasis (Cyclosporine) Brand 15 0 $14,281

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Chao's medical specialty?
Dr. Thomas Chao practices Optometrist in Brooklyn, NY.
Where does Dr. Thomas Chao practice?
Dr. Thomas Chao practices at 7801 4Th Ave, Brooklyn, NY 112093701. Office phone: 7188366661.
What is Dr. Thomas Chao's NPI?
Dr. Thomas Chao's National Provider Identifier (NPI) is 1801974860, issued by NPPES.
Does Dr. Thomas Chao accept Medicare assignment?
Yes. Dr. Thomas Chao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Chao commonly perform?
Top Medicare-reported procedures in 2023: Established patient problem focused exam of visual system (HCPCS 92012); Established patient complete exam of visual system (HCPCS 92014); Imaging of optic nerve (HCPCS 92133). Source: CMS Medicare Physician & Other Practitioners file.