Gabrielle Elizabeth Mertz, DDS

Primary specialty

DentistTaxonomy code 122300000X

License

2025022931 Issued in MO

Practice address

3009 Highway K
O Fallon, MO 63368-8696

Phone

(636) 379-7552

Fax

(636) 379-7553

NPI assigned

Jun 30, 2025

Last updated

Jun 30, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MO

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Alex Sharifian DDS Ofallon Modern Dentistry PC

  dba O'Fallon Modern Dentistry

  • General Practice Dentistry
  • O'Fallon, MO
  • NPI 1407281314
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1751241600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751241600000",
    "number": "1609765247",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3009 HIGHWAY K",
            "city": "O FALLON",
            "state": "MO",
            "postal_code": "633688696",
            "telephone_number": "636-379-7552",
            "fax_number": "636-379-7553"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3009 HIGHWAY K",
            "city": "O FALLON",
            "state": "MO",
            "postal_code": "633688696",
            "telephone_number": "636-379-7552",
            "fax_number": "636-379-7553"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERTZ",
        "first_name": "GABRIELLE",
        "middle_name": "ELIZABETH",
        "credential": "DDS",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-06-30",
        "last_updated": "2025-06-30",
        "certification_date": "2025-06-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "MO",
            "license": "2025022931",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew Meier
• Matthew Paul Melander, DO
• Margaretta Lynn Mendenhall, M.D.
• Menm, LLC (Miracle-Ear)
• Mercy Pharmacy Services LLC
• Allison Mesler
• Meta Pharmacy Solutions
• Metro Area Surgical Assistants, LLC
• Metro Area Surgical Assistants, LLC
• Amanda Rose Metz, DNP, WHNP-BC

• Dentist in O'Fallon, MO
• Providers in O'Fallon, MO by specialty
• Dentist in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.