Tammy T. Nguyen
Optometrist · Tigard, OR
Tammy T. Nguyen is an optometrist with a practice address in Tigard, Oregon, and NPI 1457973992, issued on May 7, 2020. Check the license (Oregon ATI4550, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy T. Nguyen
- Primary taxonomy
- Optometrist 152W00000X
- License number
- ATI4550 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9169 SW Burnham St, Tigard, OR 97223
- Phone
- (503) 639-5115
- Enumerated
- May 7, 2020
- Record last updated
- Jul 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201118001096); accepts Medicare assignment
- Medical or professional school
- Pacific University - College Of Optometry, 2020
- Entity
- Type 1 · individual
Also registered at 9169 SW Burnham St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bradley Smith, ODOptometrist1699769380
- Elaine WynerOptometrist1740643337
Verify Tammy T. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license ATI4550Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average optometrist in 2024
83 Medicare Part D claims for 24 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Latanoprost39 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: $351.11
3 payments; by number, the most common kind was food and beverage; the largest payer was Johnson & Johnson Vision Care, 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 2 group practices
- Murray Scholls Optique IncBeaverton, OR
- West Linn Vision Center IncWest Linn, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
38 optometrist records list a practice address in Tigard
They are 38 of the 3,081 NPPES records with a practice address in Tigard, and 944 optometrist records in Oregon.
All 38 in Tigard → All 944 in Oregon → Every provider in Tigard →
Other optometrist records in Oregon
- James Adamek, ODEagle Point, OR1568660199
- Brittany Adams, O.D.Albany, OR1265732978
- Makayla Adams, ODMyrtle Creek, OR1790461911
- Shelly Adams, O.D.White City, OR1396908075
- Samuel Adelman, O.D.Happy Valley, OR1043545122
- Brett Agost, O.D.Gresham, OR1326030883
- Dane AgostGresham, OR1376461657
- Andrew Aker, O.D.Portland, OR1154520906
- Joseph An, O.D.Gresham, OR1235271511
- Anna Anderson, O.D.Portland, OR1376707984
Common questions
What is Tammy T. Nguyen's NPI number?
Tammy T. Nguyen's National Provider Identifier (NPI) is 1457973992, issued on May 7, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Tammy T. Nguyen located?
The NPPES record lists a practice address at 9169 SW Burnham St, Tigard, OR, 97223. Phone: (503) 639-5115. Providers update this record themselves, so call before visiting.
How can I verify Tammy T. Nguyen's license?
NPPES lists Oregon license number ATI4550, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy T. Nguyen prescribe under Medicare Part D?
In 2024, Tammy T. Nguyen had 83 Medicare Part D claims for 24 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.