Dennis Yk Wen, MD

Primary specialty

Neurological Surgery PhysicianTaxonomy code 207T00000X

License

036-095129 Issued in IL

Practice address

87 N Airlite St Ste 220
Elgin, IL 60123-4995

Phone

(847) 695-6611

Fax

(847) 695-8069

NPI assigned

Oct 11, 2005

Last updated

May 29, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in IL

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 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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.

• Dennis Wen

  • Neurological Surgery Physician
  • Elgin, IL
  • NPI 1245424993
  Authorized official Same address or phone

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

{
    "created_epoch": "1128988800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748476800000",
    "number": "1689662066",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 MARMON LN",
            "city": "BARRINGTON",
            "state": "IL",
            "postal_code": "600104025",
            "telephone_number": "847-710-8860",
            "fax_number": "682-316-8126"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "87 N AIRLITE ST STE 220",
            "city": "ELGIN",
            "state": "IL",
            "postal_code": "601234995",
            "telephone_number": "847-695-6611",
            "fax_number": "847-695-8069"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WEN",
        "first_name": "DENNIS",
        "middle_name": "YK",
        "name_prefix": "Mr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-10-11",
        "last_updated": "2025-05-29",
        "certification_date": "2025-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "IL",
            "license": "036-095129",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "21602371",
            "state": "IL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036095129",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Esther Marie Weiss, CNS
• Lauren Ann Weitz, D.D.S.
• Well Baby Care PC
• Charles Wells, PEL, LCSW
• Sarah Welz
• Debra A Werth-Dachsteiner, OTR/L,CHT,CLT-UE
• Lisa Marie Wesa, M.A.
• Dawn M Wesner, BA
• Derek Wesolowski, MSPT
• Emily Westel, PA-C

• Neurological Surgery Physician in Elgin, IL
• Providers in Elgin, IL by specialty
• Neurological Surgery Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 29, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.