Individual provider Active NPI

Larry L Duenk, M.D.

  • Family Medicine Physician
  • Sheboygan, WI
National Provider Identifier
1649236985
Registry record updated Aug 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
31301-020 Issued in WI
Practice address
1703 N Taylor Dr
Sheboygan, WI 53081-1933
Phone
(920) 457-4438
NPI assigned
Apr 25, 2006
Last updated
Aug 7, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 7, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 31301-020 WI
Family Medicine Physician 207Q00000X 31301-020 WI Primary

Addresses

Primary practice location

1703 N Taylor Dr
Sheboygan, WI 53081-1933

Mailing address

4425 N Port Washington Rd
Glendale, WI 53212-1082
Phone (414) 727-6320

Other practice location 1

1121 E North Ave
Milwaukee, WI 53212-3515
Phone (414) 267-6502

Other practice location 2

220 W Capitol Dr
Glendale, WI 53212-1185
Phone (414) 727-6320

Other practice location 3

2400 W Villard Ave
Milwaukee, WI 53209-4901
Phone (414) 527-8348

Other identifiers 1

IdentifierTypeStateIssuer
31632000MedicaidWI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
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
I20040211000694 WI Practitioner - Family PracticePractitioner - Emergency Medicine 2769376631 Reassigns benefits to 5 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family PracticeAlso: Emergency Medicine
Education
Medical College of Wisconsin, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

220 W Capitol Dr
Milwaukee, WI 53212-1185
Phone (414) 727-6320

W180N8085 Town Hall Rd
FL 3
Menomonee Falls, WI 53051-3518
Phone (262) 251-1000

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
31301-020WIMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Columbia St. Mary's Hospital Milwaukee, Inc Family Medicine Current Accepting new patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Jul 1, 2023 Accepting new patients
Columbia St. Mary's Hospital Milwaukee, Inc Family Medicine CurrentSince Dec 1, 2009 Accepting new patients
Milwaukee Health Services, Inc. CurrentSince Jul 1, 2023 Accepting new patients
Milwaukee Health Services Inc CurrentSince Jul 1, 2023 Accepting new patients
Columbia St. Mary's Hospital Milwaukee Inc CurrentSince Dec 1, 2009 Accepting new patients
Milwaukee Health Services, Inc. Current Accepting new patients
Outreach Community Health Centers, Inc. CurrentSince Feb 13, 2024 Accepting new patients
DRS. Massaro & Kalenak S C Current Accepting new patients
Froedtert &the Medical College of Wisconsin Community Physicians, Inc. CurrentSince Jul 1, 2023 Accepting new patients
The Medical College of Wisconsin, Inc. Emergency Medicine CurrentSince Jul 1, 1992 Accepting new patients
Outreach Community Health Centers, Inc CurrentSince Feb 13, 2024 Accepting new patients
Sacred Heart Rehabilitation Institute, Inc Past Accepting new patients
Heart Emergency Physicians, LLP Emergency Medicine Past Accepting new patients
Boniface Orthopaedics, Inc. Past Accepting new patients

Locations

430 E Division St
Fond du Lac, WI 54935
Phone (920) 926-4200

N112W15415 Mequon Rd
Germantown, WI 53022
Phone (262) 250-7800

W168N11237 Western Ave
Germantown, WI 53022
Phone (262) 253-5060

220 W Capitol Dr
Glendale, WI 53212
Phone (414) 374-2400

2400 W Villard Ave
Glendale, WI 53209
Phone (414) 527-8000

6900 N Port Washington Rd
Glendale, WI 53217
Phone (414) 270-8100

7080 N Port Washington Rd
Glendale, WI 53217
Phone (414) 228-4940

N74W12501 Leatherwood Ct
Menomonee Falls, WI 53051
Phone (414) 454-4744

W180N8085 Town Hall Rd
Fl 3
Menomonee Falls, WI 53051

1121 E North Ave
Milwaukee, WI 53212
Phone (414) 267-6500

2555 N Mlk Dr
Milwaukee, WI 53212
Phone (414) 267-2022

8200 W Silver Spring Dr
Milwaukee, WI 53218
Phone (414) 760-3900

1317 W Grand Ave
Prt Washingtn, WI 53074
Phone (262) 268-6998

1414 N Taylor Dr
Ste 210
Sheboygan, WI 53081
Phone (262) 243-2500

10000 W Bluemound Rd
Wauwatosa, WI 53226
Phone (414) 456-3000

1155 N Mayfair Rd
Wauwatosa, WI 53226
Phone (414) 955-5990

8701 Watertown Plank Rd
Wauwatosa, WI 53226
Phone (414) 456-4100

9000 W Wisconsin Ave
Wauwatosa, WI 53226
Phone (414) 266-2625

801 S 70th St
West Allis, WI 53214
Phone (414) 773-6600

Interoperability endpoints

  • Direct secure messaging: lduenk5921@direct.froedtert.com

Organizations & group practices 15

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.

View all 15

NPI Registry JSON

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

{
    "created_epoch": "1145923200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786060800000",
    "number": "1649236985",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4425 N PORT WASHINGTON RD",
            "city": "GLENDALE",
            "state": "WI",
            "postal_code": "532121082",
            "telephone_number": "414-727-6320",
            "fax_number": "414-727-6328"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1703 N TAYLOR DR",
            "city": "SHEBOYGAN",
            "state": "WI",
            "postal_code": "530811933",
            "telephone_number": "920-457-4438"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1121 E North Ave",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532123515",
            "country_code": "US",
            "telephone_number": "414-267-6502",
            "fax_number": "414-267-3892",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "220 W Capitol Dr",
            "address_purpose": "LOCATION",
            "city": "Glendale",
            "state": "WI",
            "postal_code": "532121185",
            "country_code": "US",
            "telephone_number": "414-727-6320",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2400 W Villard Ave",
            "address_purpose": "LOCATION",
            "city": "Milwaukee",
            "state": "WI",
            "postal_code": "532094901",
            "country_code": "US",
            "telephone_number": "414-527-8348",
            "fax_number": "414-527-5069",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DUENK",
        "first_name": "LARRY",
        "middle_name": "L",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-25",
        "last_updated": "2026-08-07",
        "certification_date": "2026-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "31301-020",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WI",
            "license": "31301-020",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "31632000",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Sheboygan, WI

Sources for this page

Verify at the official NPI Registry.