Andrew Williams

Primary specialty

Assistant Behavior AnalystTaxonomy code 106E00000X

License

0-24-15174 Issued in CO

Practice address

2120 E la Salle St
Colorado Springs, CO 80909-2218

Phone

(719) 466-4809

Fax

(719) 368-8399

NPI assigned

Sep 23, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Electronic endpoints 2

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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.

• Elizabeth Ostendorf LLC

  • Behavior Analyst
  • Colorado Springs, CO
  • NPI 1932539582
  NPD
• Elizabeth Ostendorf LLC

  • Behavior Analyst
  • Colorado Springs, CO
  • NPI 1346815099
  NPD (past)
• Elizabeth Ostendorf LLC

  • Behavior Analyst
  • Colorado Springs, CO
  • NPI 1851966501
  NPD (past)

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

{
    "created_epoch": "1600819200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780963200000",
    "number": "1851908933",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2120 E LA SALLE ST",
            "city": "COLORADO SPRINGS",
            "state": "CO",
            "postal_code": "809092218",
            "telephone_number": "719-466-4809",
            "fax_number": "719-368-8399"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2120 E LA SALLE ST",
            "city": "COLORADO SPRINGS",
            "state": "CO",
            "postal_code": "809092218",
            "telephone_number": "719-466-4809",
            "fax_number": "719-368-8399"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "ANDREW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-09-23",
        "last_updated": "2026-06-09",
        "certification_date": "2026-06-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106E00000X",
            "taxonomy_group": "",
            "desc": "Assistant Behavior Analyst",
            "state": "CO",
            "license": "0-24-15174",
            "primary": true
        },
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": "CO",
            "license": null,
            "primary": false
        },
        {
            "code": "106S00000X",
            "taxonomy_group": "",
            "desc": "Behavior Technician",
            "state": "CO",
            "license": "RBT-20-136364",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "andrew.williams@coloradobehavior.com",
            "affiliation": "N",
            "endpointDescription": "provider email",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "direct provider email for health information",
            "address_1": "7011 Campus Dr Ste 205",
            "city": "Colorado Springs",
            "state": "CO",
            "country_code": "US",
            "postal_code": "809203104",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "andrew.williams@coloradobehavior.com",
            "affiliation": "N",
            "endpointDescription": "work email",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "work",
            "address_1": "2120 E La Salle St",
            "city": "Colorado Springs",
            "state": "CO",
            "country_code": "US",
            "postal_code": "809092218",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Amanda Williams, LMT
• Amanda Beth Williams, MSW-I
• Amber Williams, RN
• Ami Williams
• Anaudia Williams
• Ashley A Williams, PH.D.
• Benjamin W Williams, PA-C
• Bethany Williams
• Brejana Laree Williams, LMT
• Brianne Eve Williams, BCBA

• Assistant Behavior Analyst in Colorado Springs, CO
• Providers in Colorado Springs, CO by specialty
• Assistant Behavior Analyst in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 9, 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.