Mariah Nicole Hartzell, MS, CCC-SLP

Primary specialty

Speech-Language PathologistTaxonomy code 235Z00000X

License

5471 Issued in OK

Practice address

1900 NW Expressway Ste 450
Oklahoma City, OK 73118-1849

Phone

(405) 254-7869

NPI assigned

Aug 18, 2017

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Master of Science

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.

• Eastern New Mexico University

  dba ENMU Speech Hearing Outreach Rehabilitation Center

  • Speech-Language Pathologist
  • Portales, NM
  • NPI 1356115273
  NPD (past)

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

{
    "created_epoch": "1503014400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788134400000",
    "number": "1336665694",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1900 NW EXPRESSWAY STE 450",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731181849",
            "telephone_number": "405-254-7869"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1900 NW EXPRESSWAY STE 450",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731181849",
            "telephone_number": "405-254-7869"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARTZELL",
        "first_name": "MARIAH",
        "middle_name": "NICOLE",
        "credential": "MS, CCC-SLP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-08-18",
        "last_updated": "2026-08-31",
        "certification_date": "2026-08-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "OK",
            "license": "5471",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• James Travis Hartsfield
• Lily Anna Hartsock, DMD
• James Hartsuck, M.D.
• Hartwick Counseling Services, LLC
• Richard F Harty, MD
• Harvey a Drapkin DO PLLC
• Harvey C Jenkins PH D M D PLLC
• Sherry Renee Harvey Tuley, BHRS
• Albert K Harvey, D.O.
• Alexander William Harvey

• Speech-Language Pathologist in Oklahoma City, OK
• Providers in Oklahoma City, OK by specialty
• Speech-Language Pathologist in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 31, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.