NPPES file of Aug 9, 2026

Theresa T. Nguyen, O.D.

Optometrist · Saint Louis, MO

Theresa T. Nguyen, O.D. is an optometrist with a practice address in Saint Louis, Missouri, and NPI 1649406067, issued on Jun 1, 2009. Check the license (Missouri 2010005351, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649406067
Name
Theresa T. Nguyen
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
2010005351 MO
2617 OK
Self-reported in NPPES; status is on the state search
Practice location
1 Jefferson Barracks Dr, Saint Louis, MO 63125
Phone
(314) 652-4100
Enumerated
Jun 1, 2009
Record last updated
Dec 9, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(314) 894-5775
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 1,242 in Missouri → Look up another NPI →

Also registered at 1 Jefferson Barracks Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Carla AdderleySpeech-Language Pathologist1902196017
  2. Brandy Adelsberger, RDRegistered Dietitian1225281710
  3. Anupam Agarwal, MDGeriatric Medicine (Family Medicine) Physician1316996580
  4. Lisa Akers-Smith, RD, LDRegistered Dietitian1255766598
  5. Omar Al-Roubaie, PHARM.D.Pharmacist1891986055
  6. Lauren Albinson-Robertson, PSY.D.Clinical Psychologist1821404211

Verify Theresa T. Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2010005351    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $210.96

1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Theresa Nguyen$210.96
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Theresa T. Nguyen among 1,242 optometrist records in Missouri

Theresa T. Nguyen, O.D. is one of 1,242 optometrist records with a practice address in Missouri. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 61% of them.

  • NPI issued2009 · 61% of these records are older, 37% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2019 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Missouri

There are 1,242 optometrist records in Missouri.

All 1,242 in Missouri → Every provider in Saint Louis → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Olta Cuci, O.D.Saint Louis, MO 631251639484405
  2. Theresa Oliver, ODSaint Louis, MO 631251427588185
  3. Michael Rohde, O.D.Saint Louis, MO 631251023014024
  4. Jennifer Sutter, O.D.Saint Louis, MO 631251841604287
  5. Monika BirchardSaint Louis, MO 631241750249223
  6. Paige Diepenbrock, ODSaint Louis, MO 631261962070235
  7. Lauren Dust, ODSaint Louis, MO 631241952040701
  8. Karla Hafford, ODSaint Louis, MO 631261548660517

Common questions

What is Theresa T. Nguyen, O.D.'s NPI number?

Theresa T. Nguyen, O.D.'s National Provider Identifier (NPI) is 1649406067, issued on Jun 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Theresa T. Nguyen, O.D. located?

The NPPES record lists a practice address at 1 Jefferson Barracks Dr, Saint Louis, MO, 63125. Phone: (314) 652-4100. Providers update this record themselves, so call before visiting.

How can I verify Theresa T. Nguyen, O.D.'s license?

NPPES lists Missouri license number 2010005351, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.