William B Weir, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

85200 Issued in WI

Practice address

9200 W Wisconsin Ave
Milwaukee, WI 53226-3522

Phone

(414) 955-6450

Fax

(414) 955-0082

NPI assigned

Mar 14, 2006

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in IL, WI2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Emergency Medicine

Education

Other, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

The Medical College of Wisconsin IncGroup PAC ID 2668384371, 2,092 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Froedtert Memorial Lutheran Hospital Hospital, Milwaukee, WI, CCN 520177
• Froedtert Community Hospital Hospital, New Berlin, WI, CCN 520213
• Community Memorial Hospital Hospital, Menomonee Falls, WI, CCN 520103

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wweir854011@direct.froedtert.com
• Direct secure messaging: wweirmd13237@carlehiedirect.net

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.

• The Medical College of Wisconsin, Inc.

  • Internal Medicine Physician
  • Milwaukee, WI
  • NPI 1699720086

  Emergency Medicine

  Medicare reassignment Care Compare group NPD
• Froedtert &the Medical College of Wisconsin Community Physicians, Inc.

  • Internal Medicine Physician
  • Menomonee Falls, WI
  • NPI 1568787448
  Medicare reassignment NPD
• Carle Health Care Incorporated

  • Internal Medicine Physician
  • Urbana, IL
  • NPI 1154653947

  Emergency Medicine

  Medicare reassignment NPD
• Froedtert &the Medical College of Wisconsin Community Physicians, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Wauwatosa, WI
  • NPI 1154947224
  NPD
• Lafayette Emergency Physicians, Inc

  • Emergency Medicine Physician
  • Lebanon, IN
  • NPI 1891741641
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Community Memorial Hospital of Menomonee Falls Inc

  • General Acute Care Hospital
  • Menomonee Falls, WI
  • NPI 1609822881
  Care Compare affiliation
• Froedtert Health Neighborhood Hospital, LLC

  • General Acute Care Hospital
  • Oak Creek, WI
  • NPI 1134794506
  Care Compare affiliation
• Froedtert Health Neighborhood Hospital, LLC

  • General Acute Care Hospital
  • New Berlin, WI
  • NPI 1730710898
  Care Compare affiliation
• Froedtert Health Neighborhood Hospital, LLC

  • General Acute Care Hospital
  • Pewaukee, WI
  • NPI 1740805423
  Care Compare affiliation
• Froedtert Health Neighborhood Hospital, LLC

  • General Acute Care Hospital
  • Mequon, WI
  • NPI 1902474430
  Care Compare affiliation
• Froedtert Memorial Lutheran Hospital, Inc.

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1255334173
  Care Compare affiliation

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

{
    "created_epoch": "1142294400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741132800000",
    "number": "1811966781",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-955-6450",
            "fax_number": "414-955-0082"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9200 W WISCONSIN AVE",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532263522",
            "telephone_number": "414-955-6450",
            "fax_number": "414-955-0082"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WEIR",
        "first_name": "WILLIAM",
        "middle_name": "B",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-14",
        "last_updated": "2025-03-05",
        "certification_date": "2025-03-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IN",
            "license": "01059413A",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036-11786",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "85200",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1811966781",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Laura R Weins, MSN-FNP-BC
• Steven S Weinshel, MD
• Lisa Weinzatl, RPH
• Donald W Weir, LCSW
• Wendy A Weir
• David J Weis, O.D.
• Gabrielle Antonia Weis, DNP PMHNP-BC, APNP
• Jo M Weis, PHD
• Monica Lynne Weis, RD
• Amy J. Weisbrot, R.N.

• Emergency Medicine Physician in Milwaukee, WI
• Providers in Milwaukee, 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 Mar 5, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.