Karen Marie O'Connor, R.PH.

Primary specialty

PharmacistTaxonomy code 183500000X

License

12420-40 Issued in WI

Practice address

403 Gateway Ave
Mauston, WI 53948-1402

Phone

(608) 847-7814

NPI assigned

Dec 7, 2020

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Registered Pharmacist

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.

• Walgreen Co

  • Pharmacy
  • Mauston, WI
  • NPI 1285649186
  NPD
• Walgreen Co

  • Pharmacy
  • Longview, TX
  • NPI 1629956545
  NPD (past)

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

{
    "created_epoch": "1607299200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750291200000",
    "number": "1962008961",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "E11039 WYNSONG DR",
            "city": "BARABOO",
            "state": "WI",
            "postal_code": "539139377",
            "telephone_number": "608-356-2907"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "403 GATEWAY AVE",
            "city": "MAUSTON",
            "state": "WI",
            "postal_code": "539481402",
            "telephone_number": "608-847-7814"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'CONNOR",
        "first_name": "KAREN",
        "middle_name": "MARIE",
        "credential": "R.PH.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-12-07",
        "last_updated": "2025-06-19",
        "certification_date": "2025-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "183500000X",
            "taxonomy_group": "",
            "desc": "Pharmacist",
            "state": "WI",
            "license": "12420-40",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "OTHERS",
            "endpointTypeDescription": "Other URL",
            "endpoint": "Baraboo",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Baraboo",
            "address_1": "E11039 Wynsong Dr",
            "city": "Baraboo",
            "state": "WI",
            "country_code": "US",
            "postal_code": "539139377",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Maxwell Owen Nell
• Dennis Keith Ness, M.D.
• Eric Michael Ness, M.D.
• Laiken Kay Noble, CNM
• Jason A. Nuttall, ATC, LAT
• Ryan O'Hern, LPC-IT
• Paige Odegard, MA PSYCHOLOGY
• Max Olesevich, M.D.
• Angela Olson, PA-C
• Lisa C Olson, PA-C

• Pharmacist in Mauston, WI
• Providers in Mauston, WI by specialty
• Pharmacist in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 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.