Individual provider Active NPI

Emily Kathleen Wilczak, M.D.

  • Surgery Physician
  • Lake Geneva, WI
National Provider Identifier
1386969400
Registry record updated Oct 18, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
036136945 Issued in IL
Practice address
N2950 Wi-67
Lake Geneva, WI 53147
Phone
(815) 229-7580
NPI assigned
Mar 31, 2010
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 18, 2023

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Surgery Physician 208600000X 036136945 IL Primary

Addresses

Primary practice location

N2950 Wi-67
Lake Geneva, WI 53147

Mailing address

N2950 Wi-67
Lake Geneva, WI 53147
Phone (608) 756-6138

Other practice location 1

875 South Route 31
Crystal Lake, IL 60014-8190
Phone (779) 220-5500

Other practice location 2

901 Grant St
Harvard, IL 60033-1821
Phone (815) 943-5431

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20150424000402 IL Practitioner - General Surgery 3678726544 Reassigns benefits to 2 organizations
I20180531000807 WI Practitioner - General Surgery 3678726544 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Michigan State University College of Human Medicine
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mercy Health System CorporationGroup PAC ID 7416860440, shared by 14 NPIs, 749 clinicians

Practice addresses (Care Compare)

901 Grant St
Harvard, IL 60033-1821
Phone (815) 943-5431

N2950 State Rd
Suite 67
Lake Geneva, WI 53147-2655
Phone (262) 245-0535

Hospital & facility affiliations

  • Mercy Walworth Hospital & Medical Center Hospital, Lake Geneva, WI, CCN 521357

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Health System Corporation CurrentSince Apr 26, 2018 Accepting new patients
Mercy Harvard Hospital Inc CurrentSince Dec 1, 2025 Accepting new patients
Mercy Health System Corporation Current Accepting new patients
Mercy Health System Corporation CurrentSince Apr 26, 2018 Accepting new patients
Mercy Harvard Hospital Inc CurrentSince Dec 1, 2025 Accepting new patients
Mercy Health System Corporation Past Accepting new patients

Locations

29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652

875 S State Route 31
Crystal Lake, IL 60014
Phone (779) 220-5500

348 S Division St
Harvard, IL 60033
Phone (815) 943-1122

901 Grant St
Harvard, IL 60033
Phone (815) 943-5431

1000 Mineral Point Ave
Janesville, WI 53548
Phone (608) 261-6868

N2950 State Road 67
Lake Geneva, WI 53147
Phone (262) 245-0535

Organizations & group practices 6

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1269993600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1697587200000",
    "number": "1386969400",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "N2950 WI-67",
            "city": "LAKE GENEVA",
            "state": "WI",
            "postal_code": "53147",
            "telephone_number": "608-756-6138"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "N2950 WI-67",
            "city": "LAKE GENEVA",
            "state": "WI",
            "postal_code": "53147",
            "telephone_number": "815-229-7580"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "875 South Route 31",
            "address_purpose": "LOCATION",
            "city": "Crystal Lake",
            "state": "IL",
            "postal_code": "600148190",
            "country_code": "US",
            "telephone_number": "779-220-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "901 Grant St",
            "address_purpose": "LOCATION",
            "city": "Harvard",
            "state": "IL",
            "postal_code": "600331821",
            "country_code": "US",
            "telephone_number": "815-943-5431",
            "fax_number": "815-943-0659",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILCZAK",
        "first_name": "EMILY",
        "middle_name": "KATHLEEN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-03-31",
        "last_updated": "2023-10-18",
        "certification_date": "2023-10-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IL",
            "license": "036136945",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lake Geneva, WI

Sources for this page

Verify at the official NPI Registry.