Tonja Matthias, D.C.

Primary specialty

ChiropractorTaxonomy code 111N00000X

License

2004028769 Issued in MO

Practice address

36 Fenton PLZ
Fenton, MO 63026-4110

Phone

(314) 574-1907

Fax

(636) 600-0670

NPI assigned

Nov 21, 2009

Sex

Female

Sole proprietor

Yes

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

Enrollment records 1

Specialty

Chiropractic

Education

Logan College of Chiropractic, 2001

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

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

• First Stop Chiropractic LLC

  • Chiropractor
  • Fenton, MO
  • NPI 1699485797
  Medicare reassignment NPD Authorized official
• Back on Track Eureka, LLC

  dba Back on Track

  • Chiropractor
  • Eureka, MO
  • NPI 1417747783
  NPD (past)

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

{
    "created_epoch": "1258761600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766966400000",
    "number": "1861720336",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "36 FENTON PLZ",
            "city": "FENTON",
            "state": "MO",
            "postal_code": "630264110",
            "telephone_number": "314-574-1907",
            "fax_number": "636-600-0670"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "36 FENTON PLZ",
            "city": "FENTON",
            "state": "MO",
            "postal_code": "630264110",
            "telephone_number": "314-574-1907",
            "fax_number": "636-600-0670"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATTHIAS",
        "first_name": "TONJA",
        "name_prefix": "Dr.",
        "credential": "D.C.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2009-11-21",
        "last_updated": "2025-12-29",
        "certification_date": "2025-12-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "MO",
            "license": "2004028769",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael Harry Mastromichalis, M.D.
• Matrix Psychiatric Home and Health Care, L.L.C.
• Matrix Psychiatric Home Care
• Millicent Matronia
• Julie Matthews, OTR
• Megan C. McBride, D.O.
• Ana Elizabeth McCorkhill-Jones, RN
• Kailey Jean McCutchen, NP
• Kelsey McDonald, DC
• Kathleen McDonough, MSW, LCSW

• Chiropractor in Fenton, MO
• Providers in Fenton, MO by specialty
• Chiropractor in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 29, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.