Individual provider Active NPI

Karl Zimmerman

  • Behavior Analyst
  • Sussex, WI
National Provider Identifier
1821497074
Registry record updated Aug 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Behavior AnalystTaxonomy code 103K00000X
License
BACB267055 Issued in WI
Practice address
N64W24180 Main St
Sussex, WI 53089-3004
Phone
(719) 313-6124
NPI assigned
Aug 13, 2014
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 12, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Behavior Analyst 103K00000X BACB267055 WI Primary

Addresses

Primary practice location

N64W24180 Main St
Sussex, WI 53089-3004

Mailing address

N64W24180 Main St
Sussex, WI 53089-3004
Phone (719) 313-6124

Other practice location 1

1408 8th St
Alamogordo, NM 88310-5115
Phone (866) 273-2451

Other practice location 2

1200 Concord Ave Ste 185
Concord, CA 94520-5006
Phone (510) 268-8120

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
BACB267055WIMDBehavioral Analyst

Practice roles

OrganizationSpecialtyStatusNew patients
Behavior Change Institute, LLC. Behavior Analyst Past Accepting new patients
Wiebusch & Nicholson Center for Autism, Inc. Past Accepting new patients
Pediatric Neuropsychology and Treatment Associates, SC Past Accepting new patients

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1407888000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786492800000",
    "number": "1821497074",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "N64W24180 MAIN ST",
            "city": "SUSSEX",
            "state": "WI",
            "postal_code": "530893004",
            "telephone_number": "719-313-6124"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "N64W24180 MAIN ST",
            "city": "SUSSEX",
            "state": "WI",
            "postal_code": "530893004",
            "telephone_number": "719-313-6124"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1408 8th St",
            "address_purpose": "LOCATION",
            "city": "Alamogordo",
            "state": "NM",
            "postal_code": "883105115",
            "country_code": "US",
            "telephone_number": "866-273-2451",
            "fax_number": "866-608-5560",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1200 Concord Ave Ste 185",
            "address_purpose": "LOCATION",
            "city": "Concord",
            "state": "CA",
            "postal_code": "945205006",
            "country_code": "US",
            "telephone_number": "510-268-8120",
            "fax_number": "510-373-1738",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZIMMERMAN",
        "first_name": "KARL",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-08-13",
        "last_updated": "2026-08-12",
        "certification_date": "2026-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": "WI",
            "license": "BACB267055",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Sussex, WI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 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.