Individual provider Active NPI

Nadeen Z. Sweis, MD

  • Family Medicine Physician
  • Lake Geneva, WI
National Provider Identifier
1720469539
Registry record updated Sep 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
70318-20 Issued in WI
Practice address
350 Peller Rd
Lake Geneva, WI 53147-4543
Phone
(262) 249-0221
Fax
(262) 249-0633
NPI assigned
Jun 17, 2015
Last updated
Sep 29, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 29, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 4301107823 MI
Family Medicine Physician 207Q00000X 70318-20 WI Primary

Addresses

Primary practice location

350 Peller Rd
Lake Geneva, WI 53147-4543

Mailing address

350 Peller Rd
Lake Geneva, WI 53147-4543
Phone (262) 249-0221

Other practice location 1

4611 Campus Ridge
Midland, MI 48670-6122
Phone (989) 839-3500

Other practice location 2

839 N Wisconsin St
Elkhorn, WI 53121-1138
Phone (262) 741-1400

Other identifiers 4

IdentifierTypeStateIssuer
K400603142OtherWIWI MEDICARE
1720469539OtherWIBCBSWI
1765OtherWIMERCYCARE INSURANCE
1720469539MedicaidWI

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20211227000335 IL Practitioner - Family Practice 0244543726 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
First Docs PCGroup PAC ID 0547626871, 181 clinicians

Practice addresses (Care Compare)

471 W Terra Cotta Ave
Crystal Lake, IL 60014-3434
Phone (609) 585-1122

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Health System Corporation Current Accepting new patients
First Docs PC CurrentSince Jun 30, 2025 Accepting new patients
Mercy Health System Corporation CurrentSince Oct 9, 2019 Accepting new patients
Mercy Health System Corporation CurrentSince Oct 9, 2019 Accepting new patients
Mymichigan Medical Center Midland Family Medicine Past Accepting new patients
Mymichigan Medical Center Midland Past Accepting new patients

Locations

2401 Harnish Dr
Algonquin, IL 60102
Phone (847) 458-5440

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

471 W Terra Cotta Ave
Crystal Lake, IL 60014
Phone (815) 455-0550

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

550 Ridgeview Dr
McHenry, IL 60050
Phone (800) 455-6768

1525 Oxford Ln
Naperville, IL 60565
Phone (224) 441-7428

839 N Wisconsin St
Elkhorn, WI 53121
Phone (262) 723-5055

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

350 Peller Rd
Lake Geneva, WI 53147
Phone (262) 245-0221

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Fair Oaks Health Care CenterCrystal Lake, IL, CCN 145917 Skilled nursing facility Operational/Managerial Control
Adp of the SNF
Sep 1, 2025
Sep 1, 2025

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 4

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": "1434499200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1720469539",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "350 PELLER RD",
            "city": "LAKE GENEVA",
            "state": "WI",
            "postal_code": "531474543",
            "telephone_number": "262-249-0221",
            "fax_number": "262-249-0633"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "350 PELLER RD",
            "city": "LAKE GENEVA",
            "state": "WI",
            "postal_code": "531474543",
            "telephone_number": "262-249-0221",
            "fax_number": "262-249-0633"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4611 Campus Ridge",
            "address_purpose": "LOCATION",
            "city": "Midland",
            "state": "MI",
            "postal_code": "486706122",
            "country_code": "US",
            "telephone_number": "989-839-3500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "839 N Wisconsin St",
            "address_purpose": "LOCATION",
            "city": "Elkhorn",
            "state": "WI",
            "postal_code": "531211138",
            "country_code": "US",
            "telephone_number": "262-741-1400",
            "fax_number": "262-741-1401",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SWEIS",
        "first_name": "NADEEN",
        "middle_name": "Z.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-06-17",
        "last_updated": "2026-09-29",
        "certification_date": "2021-04-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MI",
            "license": "4301107823",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WI",
            "license": "70318-20",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "WI MEDICARE",
            "identifier": "K400603142",
            "state": "WI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBSWI",
            "identifier": "1720469539",
            "state": "WI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MERCYCARE INSURANCE",
            "identifier": "1765",
            "state": "WI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1720469539",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Lake Geneva, WI

Sources for this page

Verify at the official NPI Registry.