William Norman Werner, M.D., M.P.H.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Practice address

836 W Wellington Ave
Chicago, IL 60657-5147

Phone

(773) 296-5888

Fax

(773) 296-7925

NPI assigned

Nov 23, 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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Advocate North Side Health Network

  • Institutional Pharmacy
  • Chicago, IL
  • NPI 1114645470
  NPD (past)

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

{
    "created_epoch": "1132704000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1073596904",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4326 BOBOLINK TER",
            "city": "SKOKIE",
            "state": "IL",
            "postal_code": "600762004",
            "telephone_number": "847-673-5398",
            "fax_number": "773-296-7925"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "836 W WELLINGTON AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606575147",
            "telephone_number": "773-296-5888",
            "fax_number": "773-296-7925"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WERNER",
        "first_name": "WILLIAM",
        "middle_name": "NORMAN",
        "name_prefix": "Dr.",
        "credential": "M.D., M.P.H.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-23",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew Werner
• Mia Werner, PA-C
• Monica Werner
• Nina Werner, LCSW
• Sarah Ruth Werner, MD
• Kathleen Wernet, MS CCC/SLP
• Julia Wernke, PH.D.
• Michelle Weronke, RN
• Sarah E Werosh, MHS
• Barry Kent Wershil, MD

• Internal Medicine Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Internal Medicine Physician in Illinois

• 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.