William P West, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

22837 Issued in WI

Practice address

4121 W Northwood CT
Janesville, WI 53545-8335

Phone

(608) 757-1823

NPI assigned

Mar 1, 2006

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Interoperability endpoints

• Direct secure messaging: william.west.1@15975.direct.athenahealth.com

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

{
    "created_epoch": "1141171200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1285601153",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4121 W NORTHWOOD CT",
            "city": "JANESVILLE",
            "state": "WI",
            "postal_code": "535458335",
            "telephone_number": "608-757-1823"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4121 W NORTHWOOD CT",
            "city": "JANESVILLE",
            "state": "WI",
            "postal_code": "535458335",
            "telephone_number": "608-757-1823"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WEST",
        "first_name": "WILLIAM",
        "middle_name": "P",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "22837",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stacy Marian Wepking, MPT
• Rebecca L Wergin
• Gregory J. Werner, DDS
• Betsy Sue West, DC
• James Joseph West, MD
• Nadine M Westby, SW
• Danielle J Westmoreland, APRN, PMHNP
• Rebecca L Westrick, SW
• Jack O Wheeler
• Joseph Darren Wheeler, MD

• Emergency Medicine Physician in Janesville, WI
• Providers in Janesville, WI by specialty
• Emergency Medicine Physician in Wisconsin

• 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.