GABRIELLE ELIZABETH MERTZ DDS
NPI 1609765247
Dentist in O Fallon, MO

Q: What is Gabrielle Mertz's NPI number?

The NPI number for Gabrielle Mertz is 1609765247. It was assigned to this individual provider in the NPPES registry on June 30, 2025.

Q: What is Gabrielle Mertz's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Q: When was this NPI record last updated?

The NPPES record for Gabrielle Mertz was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since June 30, 2025PECOS Enrolled

3009 HIGHWAY K, O FALLON, MO 63368(636) 379-7552(636) 379-7553 Get Directions Write a Review

NPPES record last updated: June 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Gabrielle Elizabeth Mertz Dds NPPES

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

GABRIELLE ELIZABETH MERTZ DDS (NPI 1609765247) is an individual dentist in O Fallon, Missouri, licensed in Missouri (2025022931) and active in the NPI registry since June 2025. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609765247

Entity TypeIndividualFemale

Primary Taxonomy122300000X

Provider Legal NameGABRIELLE ELIZABETH MERTZCredential: DDS

Location Address3009 HIGHWAY KO Fallon, MO 63368-8696

Mailing Address3009 Highway KO Fallon, MO 63368-8696 · (636) 379-7552 · Fax (636) 379-7553

Phone(636) 379-7552

Fax(636) 379-7553

Sole ProprietorNo

Enumeration DateJune 30, 2025

NPPES CertifiedJune 30, 2025

✔ NPI 1609765247 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers

Taxonomy Code122300000X

License✔ Licensed in MO · 2025022931

Definition

A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

3009 HIGHWAY K, O Fallon, MO 63368

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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 (PECOS)

Gabrielle Elizabeth Mertz Dds is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63368 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

$86.32 typical visit price

range $55.65 – $169.38

Typical copayment $21.58 (range $13.91 – $42.34)

Most-billed visit code 99203

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 6

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

DR. JENNIFER SOPRYCH DMD

Dentist (General Practice)

3009 HIGHWAY K
O FALLON, MO 63368

St. Charles County (636) 379-7552

ERIC JOSEPH FRITSCHE

Dentist

3009 HIGHWAY K
O FALLON, MO 63368

St. Charles County (636) 379-7552

ALEX SHARIFIAN DDS OFALLON MODERN DENTISTRY PC

Dentist (General Practice)

3009 HIGHWAY K
O'FALLON, MO 63368

St. Charles County (636) 379-7552

DR. LOGAN WILLIAM SMITH DDS

Dentist (General Practice)

3009 HIGHWAY K
O FALLON, MO 63368

St. Charles County (636) 379-7552

TYLER LEAVITT DDS

Dentist

3009 HIGHWAY K
O FALLON, MO 63368

St. Charles County (636) 379-7552

JACQUELYN ANI AKMAKJIAN DMD

Dentist (General Practice)

3009 HIGHWAY K
O FALLON, MO 63368

St. Charles County (636) 379-7552

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 Gabrielle Mertz's NPI number?

The NPI number for Gabrielle Mertz is 1609765247. It was assigned to this individual provider in the NPPES registry on June 30, 2025.

Where is Gabrielle Mertz located?

Gabrielle Mertz practices at 3009 Highway K, O Fallon, MO 63368. The listed phone number is (636) 379-7552.

What is Gabrielle Mertz's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

Is Gabrielle Mertz enrolled in Medicare?

Yes. Gabrielle Mertz is registered in the Medicare PECOS enrollment system.

What insurance does Gabrielle Mertz 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 13 other insurers list Gabrielle Mertz 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 Gabrielle Mertz was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.