Doctor profile · Federal record

Dr. Madeline Nguyen, O.D.

Optometrist (CMS: Optometry) · Houston, TX

  • NPI 1366456469
  • 20 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
505 J Davis Armistead Bldg
Houston, TX 772042020
(713) 743-2020

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Texas #6950T

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366456469. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
123
Distinct HCPCS
5
Medicare allowed
$9,581
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 35 21 $87
92083 Exam of visual field with extended testing 26 14 $60
92012 Established patient problem focused exam of visual system 23 19 $87
92250 Photography of the retina 21 16 $36
99214 Established patient office or other outpatient visit, 30-39 minutes 18 18 $124

In context: peer comparison

Among 114 peers in Houston Optometrist, average services per provider: 60. This provider delivers 2.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$559
Transactions
9
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Alcon Vision LLC 6 $293.04
Sight Sciences, INC. 1 $143.24
CooperVision INC. 2 $122.62

By nature of payment

Food and Beverage
$559

Frequently asked questions

Auto-generated from federal data
What is Dr. Madeline Nguyen's medical specialty?
Dr. Madeline Nguyen practices Optometrist in Houston, TX.
Where does Dr. Madeline Nguyen practice?
Dr. Madeline Nguyen practices at 505 J Davis Armistead Bldg, Houston, TX 772042020. Office phone: 7137432020.
What is Dr. Madeline Nguyen's NPI?
Dr. Madeline Nguyen's National Provider Identifier (NPI) is 1366456469, issued by NPPES.
Does Dr. Madeline Nguyen accept Medicare assignment?
Dr. Madeline Nguyen does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Madeline Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Exam of visual field with extended testing (HCPCS 92083); Established patient problem focused exam of visual system (HCPCS 92012). Source: CMS Medicare Physician & Other Practitioners file.