Maria Nguyen Tantsits, OD
Optometrist · Saint Louis, MO
Maria Nguyen Tantsits, OD is an optometrist with a practice address in Saint Louis, Missouri, and NPI 1528683190, issued on Jun 10, 2020. Check the license (Missouri 2020015819, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria Nguyen Tantsits
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2020015819 MO
Self-reported in NPPES; status is on the state search - Practice location
- 621 S New Ballas RD Ste 140A, Saint Louis, MO 63141
- Phone
- (314) 251-6410
- Enumerated
- Jun 10, 2020
- Record last updated
- Jan 23, 2026
- Fax
- (314) 251-4392
- Medicare enrollment
- Enrolled (PECOS I20200619000937); accepts Medicare assignment
- Medical or professional school
- University Of Missouri St Louis - School Of Optometry, 2020
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,242 in Missouri → Look up another NPI →
Also registered at 621 S New Ballas RD Ste 140A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barbara Aalbers, ODOptometrist1366421158
- Cathy Edwards, O.D.Optometrist1366627697
- David Green, ODOptometrist1821180670
- Melissa Wilcox-Erard, ODOptometrist1760518666
Verify Maria Nguyen Tantsits in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2020015819Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average optometrist in 2024
32 Medicare Part D claims for 21 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Prednisolone Acetate12 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: $201.31
3 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision 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
- Mercy Clinic Ophthalmology LLCSaint Louis, MO
- Mercy Health Services LLCWashington, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Nguyen Tantsits among 1,242 optometrist records in Missouri
Maria Nguyen Tantsits, OD 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 2020, is newer than 85% of them.
- NPI issued2020 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2007 among the 768 with a school on file
- Record last updated2026 · 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
- Barbara Aalbers, ODSaint Louis, MO 631411366421158
- Todd Bellamy, O.D.Creve Coeur, MO 631411093711137
- Mary Blatt, ODSaint Louis, MO 631411437154499
- Tonya Bourn, O.D.Creve Coeur, MO 631411851340152
- Michelle Burghart, ODCreve Coeur, MO 631411932111929
- Thomas Cullinane, ODSt Louis, MO 631411669546354
- David Green, ODSaint Louis, MO 631411821180670
- John McGreal, ODSaint Louis, MO 631411689661886
Common questions
What is Maria Nguyen Tantsits, OD's NPI number?
Maria Nguyen Tantsits, OD's National Provider Identifier (NPI) is 1528683190, issued on Jun 10, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Maria Nguyen Tantsits, OD located?
The NPPES record lists a practice address at 621 S New Ballas RD Ste 140A, Saint Louis, MO, 63141. Phone: (314) 251-6410. Providers update this record themselves, so call before visiting.
How can I verify Maria Nguyen Tantsits, OD's license?
NPPES lists Missouri license number 2020015819, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Maria Nguyen Tantsits, OD prescribe under Medicare Part D?
In 2024, Maria Nguyen Tantsits, OD had 32 Medicare Part D claims for 21 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.