Karl Richard Harer, D.C.

Primary specialty

ChiropractorTaxonomy code 111N00000X

License

DC17899 Issued in CA

Practice address

4517 Market St
Suite 1
Ventura, CA 93003-7710

Phone

(805) 650-5929

Fax

(805) 650-5947

NPI assigned

Oct 19, 2005

Sex

Male

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

Enrolled in CA

Enrollment records 1

Medicare enrollment (NPD)

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Eric G Mortensen Chiropractic Inc

  • Chiropractor
  • Ventura, CA
  • NPI 1518407592
  Medicare reassignment NPD
• Karl R. Harer Chiropractic, Incorporated

  • Chiropractor
  • Ventura, CA
  • NPI 1154591592
  Authorized official Same address or phone

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

{
    "created_epoch": "1129680000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1659360865",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4517 MARKET ST",
            "address_2": "SUITE 1",
            "city": "VENTURA",
            "state": "CA",
            "postal_code": "930037710",
            "telephone_number": "805-650-5929",
            "fax_number": "805-650-5947"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4517 MARKET ST",
            "address_2": "SUITE 1",
            "city": "VENTURA",
            "state": "CA",
            "postal_code": "930037710",
            "telephone_number": "805-650-5929",
            "fax_number": "805-650-5947"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARER",
        "first_name": "KARL",
        "middle_name": "RICHARD",
        "name_prefix": "Dr.",
        "credential": "D.C.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-19",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "CA",
            "license": "DC17899",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kaylee Michelle Jones Hantke
• William Harbison
• Harbor Family and Pediatric Medical (Channel Islands Medical Group)
• Joan Harden, SLPCCC
• Taylor Arlana Hardge
• Damayea Isatu Hargett, MD
• Laura Harman, M.D.
• Mariana Harms, M.S., MFT
• Reis Thomas Harney, MD
• Jessica Haro, BCBA

• Chiropractor in Ventura, CA
• Providers in Ventura, CA by specialty
• Chiropractor in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.