Elizabeth Niffenegger, SLP

Primary specialty

Speech-Language PathologistTaxonomy code 235Z00000X

Practice address

6200 E Cornell Ave
Denver, CO 80222-7013

Phone

(303) 902-3462

NPI assigned

Jan 2, 2014

Last updated

Mar 16, 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

Other identifiers 1

Other names 1

• Elizabeth Kellogg Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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.

• Lisa Niffenegger, LLC

  • Speech-Language Pathologist
  • Denver, CO
  • NPI 1184248205
  NPD Authorized official

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

{
    "created_epoch": "1388620800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742083200000",
    "number": "1669893061",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6200 E CORNELL AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802227013",
            "telephone_number": "303-902-3462"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6200 E CORNELL AVE",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802227013",
            "telephone_number": "303-902-3462"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NIFFENEGGER",
        "first_name": "ELIZABETH",
        "credential": "SLP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-01-02",
        "last_updated": "2025-03-16",
        "certification_date": "2025-03-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "62982834",
            "state": "CO"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ELIZABETH",
            "last_name": "KELLOGG",
            "credential": "SLP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Elizabeth Ann Nies, RDH
• Elisabeth Anne Nietch, CMT, LMT
• Brittany Nieto, MA, LPC
• Alison Nieves, LCSW
• Enid Nieves
• Carol Annette Niforatos, D.D.S
• Christopher J Nightengale, MD
• John Marshall Nigro III
• Nikaos Counseling Colorado
• Nikki Jupe Nutrition LLC (Fueling Fundamentals)

• Speech-Language Pathologist in Denver, CO
• Providers in Denver, CO by specialty
• Speech-Language Pathologist in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 16, 2025; 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.