Theresa Q. Nguyen, O.D.
Optometrist · Austin, TX
Theresa Q. Nguyen, O.D. is an optometrist with a practice address in Austin, Texas, and NPI 1851727820, issued on Sep 22, 2013. Check the license (Texas 9877, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Theresa Q. Nguyen
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 9877 TX
654 NM
Self-reported in NPPES; status is on the state search - Practice location
- 901 S Mopac Expy, Austin, TX 78746
- Phone
- (512) 347-0255
- Enumerated
- Sep 22, 2013
- Record last updated
- Jan 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200110000899); accepts Medicare assignment
- Medical or professional school
- University Of Houston - College Of Optometry, 2013
- Entity
- Type 1 · individual
8 nearest optometrist records → All 5,006 in Texas → Look up another NPI →
Also registered at 901 S Mopac Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Zaramella, DDSGeneral Practice Dentistry1548767023
Verify Theresa Q. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 9877Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average optometrist in 2024
226 Medicare Part D claims for 73 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 86% of claims.
Most prescribed
- Latanoprost33 claims
- Cequa32 claims
- Vyzulta30 claims
- Xiidra29 claims
- Miebo25 claims
- Lotemax Sm19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,031.87
39 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dell Laser Consultants, P.A.Austin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa Q. Nguyen among 5,006 optometrist records in Texas
Theresa Q. Nguyen, O.D. is one of 5,006 optometrist records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 59% of them.
- NPI issued2013 · 59% of these records are older, 38% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2013 · median 2010 among the 2,894 with a school on file
- Record last updated2021 · 59% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Texas
There are 5,006 optometrist records in Texas.
All 5,006 in Texas → Every provider in Austin → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Honour Cessac, ODAustin, TX 787461417950759
- Derek Cunningham, O.D.Austin, TX 787461265407084
- Susan Elizondo, O.D.Austin, TX 787461073814216
- Julie Gorn, O.D.Austin, TX 787461710112511
- Gregg Kamnetz, O.D.Austin, TX 787461043258668
- Raeann Murray, O.D.Austin, TX 787461437405131
- Alexandra Nelson, O.D.Austin, TX 787461356783641
- Shelley Poirrier, O.D.Austin, TX 787461487706206
Common questions
What is Theresa Q. Nguyen, O.D.'s NPI number?
Theresa Q. Nguyen, O.D.'s National Provider Identifier (NPI) is 1851727820, issued on Sep 22, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Q. Nguyen, O.D. located?
The NPPES record lists a practice address at 901 S Mopac Expy, Austin, TX, 78746. Phone: (512) 347-0255. Providers update this record themselves, so call before visiting.
How can I verify Theresa Q. Nguyen, O.D.'s license?
NPPES lists Texas license number 9877, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Theresa Q. Nguyen, O.D. prescribe under Medicare Part D?
In 2024, Theresa Q. Nguyen, O.D. had 226 Medicare Part D claims for 73 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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.
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.