NPIMap

Organization Active NPI

Horizons ABA Colorado LLC

  • Behavior Analyst
  • Denver, CO
National Provider Identifier
1750134573
Registry record updated Jun 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Behavior AnalystTaxonomy code 103K00000X
Legal business name
HORIZONS ABA COLORADO LLC
Practice address
100 Fillmore St FL 5
Denver, CO 80206-4916
Phone
(888) 933-8248
Fax
(310) 935-3368
NPI assigned
Apr 10, 2024
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jun 27, 2026

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

Authorized official

Name
Alexander Apfel
Title
Co-Founder
Phone
(888) 933-8248

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Behavior AnalystGroup: 193200000X MULTI-SPECIALTY GROUP 103K00000X Primary

Addresses

Primary practice location

100 Fillmore St FL 5
Denver, CO 80206-4916

Mailing address

100 Fillmore St FL 5
Denver, CO 80206-4916
Phone (888) 933-8248

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 7

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1712707200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1782518400000",
    "number": "1750134573",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 FILLMORE ST FL 5",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802064916",
            "telephone_number": "888-933-8248",
            "fax_number": "310-935-3368"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 FILLMORE ST FL 5",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802064916",
            "telephone_number": "888-933-8248",
            "fax_number": "310-935-3368"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "HORIZONS ABA COLORADO LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2024-04-10",
        "last_updated": "2026-06-27",
        "certification_date": "2026-06-27",
        "status": "A",
        "authorized_official_last_name": "APFEL",
        "authorized_official_first_name": "ALEXANDER",
        "authorized_official_title_or_position": "CO-FOUNDER",
        "authorized_official_telephone_number": "888-933-8248"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Behavior Analyst",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 27, 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.