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DR. MARIA NGUYEN TANTSITS OD
NPI 1528683190
Optometrist in Saint Louis, MO

Active since June 10, 2020PECOS EnrolledAccepts Medicare Assignment
621 S NEW BALLAS RD STE 140A, SAINT LOUIS, MO 63141(314) 251-6410(314) 251-4392 Get Directions Write a Review

NPPES record last updated: January 23, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 23, 2026, Jun 13, 2024, Jun 10, 2020 (3 updates tracked since 2020).

About Dr. Maria Nguyen Tantsits Od NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARIA NGUYEN TANTSITS OD (NPI 1528683190) is an individual optometrist in Saint Louis, Missouri, licensed in Missouri (2020015819) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Saint Louis, and is a graduate of University Of Missouri St Louis - School Of Optometry (2020).

NPPES Registry Identity

NPI1528683190
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameDR. MARIA NGUYEN TANTSITSCredential: OD
Location Address621 S NEW BALLAS RD STE 140ASaint Louis, MO 63141-8254
Mailing Address621 S New Ballas Rd Ste 140aSaint Louis, MO 63141-8254 · (314) 251-6410 · Fax (314) 251-4392
Phone(314) 251-6410
Fax(314) 251-4392
Sole ProprietorNo
Medical School CMSUniversity Of Missouri St Louis - School Of OptometryGraduated 2020
Enumeration DateJune 10, 2020
Last NPPES UpdateJanuary 23, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 23, 2026
✔ NPI 1528683190 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in MO · 2020015819
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
621 S NEW BALLAS RD STE 140A, Saint Louis, MO 63141
Open in Google Maps ↗

Secondary Practice Location 1

Location 134 Hampton Village PlzSaint Louis, MO 63109-2127 · Phone (314) 752-2679

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Maria Nguyen Tantsits Od is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID345662300
PECOS Enrollment IDI20200619000937
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
24 services19 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BARBARA A AALBERS OD
Optometrist
621 S NEW BALLAS RD STE 140A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6430
CATHY LYNN EDWARDS O.D.
Optometrist
621 S NEW BALLAS RD STE 140A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6430
MELISSA S WILCOX-ERARD OD
Optometrist
621 S NEW BALLAS RD STE 140A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6430
DR. DAVID L GREEN OD
Optometrist
621 S NEW BALLAS RD STE 140A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6430

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maria Tantsits's NPI number?

The NPI number for Maria Tantsits is 1528683190. It was assigned to this individual provider in the NPPES registry on June 10, 2020.

Where is Maria Tantsits located?

Maria Tantsits practices at 621 S New Ballas Rd Ste 140A, Saint Louis, MO 63141. The listed phone number is (314) 251-6410.

What is Maria Tantsits's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Maria Tantsits enrolled in Medicare?

Yes. Maria Tantsits is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Maria Tantsits accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 10 other insurers list Maria Tantsits as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Maria Tantsits was last updated on January 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.