Individual provider Active NPI

Duffy M Casey, MD

  • Obstetrics & Gynecology Physician
  • Minocqua, WI
National Provider Identifier
1346478161
Registry record updated Sep 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
82138 Issued in WI
Practice address
9576 Highway 70
Minocqua, WI 54548-9067
Phone
(715) 358-1000
NPI assigned
Jul 1, 2009
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 9, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X MD 17116 HI
Obstetrics & Gynecology Physician 207V00000X 82138 WI Primary

Addresses

Primary practice location

9576 Highway 70
Minocqua, WI 54548-9067

Mailing address

1881 Nani Street
Wailuku, HI 96793
Phone (808) 871-7772

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in HI, 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
I20140502000217 HI Practitioner - Obstetrics/Gynecology 0345473187 Reassigns benefits to 1 organization
I20221004001025 WI Practitioner - Obstetrics/Gynecology 0345473187 Reassigns benefits to 9 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Eastern Virginia Medical School, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Community Clinic of Maui IncGroup PAC ID 2466365440, shared by 4 NPIs, 20 clinicians

Practice addresses (Care Compare)

1881 Nani St
Wailuku, HI 96793-1811
Phone (808) 871-7772

670 Waiale Rd
Apt a
Wailuku, HI 96793-2376
Phone (808) 872-4099

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD 17116HIMDObstetrics & Gynecology Physician
82138WIMDObstetrics & Gynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Memorial Hospital Inc CurrentSince Aug 22, 2022 Accepting new patients
Community Clinic of Maui, Inc. Current Accepting new patients
MCHS Hospitals Inc Current Accepting new patients
Community Clinic of Maui, Inc. CurrentSince Feb 25, 2014 Accepting new patients
Flambeau Hospital Inc CurrentSince Aug 22, 2022 Accepting new patients
Community Clinic of Maui, Inc. CurrentSince Feb 25, 2014 Accepting new patients
MCHS Hospitals Inc CurrentSince Aug 22, 2022 Accepting new patients
Beaver Dam Community Hospitals Inc CurrentSince Aug 22, 2022 Accepting new patients
Beaver Dam Community Hospitals Inc CurrentSince Aug 22, 2022 Accepting new patients
MCHS Hospitals Inc CurrentSince Aug 22, 2022 Accepting new patients
Flambeau Hospital Inc CurrentSince Aug 22, 2022 Accepting new patients
Marshfield Clinic Inc CurrentSince Aug 22, 2022 Accepting new patients
Lakeview Medical Center Inc of Rice Lake CurrentSince Aug 22, 2022 Accepting new patients
Community Clinic of Maui, Inc. PastSince Apr 14, 2024 Accepting new patients
Maui Health System a Kaiser Foundation Hospitals LLC Past Accepting new patients

Locations

1881 Nani St
Wailuku, HI 96793
Phone (808) 871-7772

705 S University Ave
Beaver Dam, WI 53916
Phone (920) 885-6090

3501 Golf Rd
Eau Claire, WI 54701
Phone (715) 858-4200

1000 Starr Ave
Eau Claire, WI 54703
Phone (715) 858-4850

1000 N Oak Ave
Marshfield, WI 54449
Phone (715) 387-5111

1102 S Center Ave
Merrill, WI 54452
Phone (715) 536-3399

9576 State Highway 70
Minocqua, WI 54548
Phone (715) 358-1000

N3708 River Ave
Neillsville, WI 54456
Phone (715) 743-3101

1700 W Stout St
Rice Lake, WI 54868
Phone (715) 236-6133

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 and National Provider Directory roles.

View all 15

NPI Registry JSON

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

{
    "created_epoch": "1246406400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788912000000",
    "number": "1346478161",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1881 NANI STREET",
            "city": "WAILUKU",
            "state": "HI",
            "postal_code": "96793",
            "telephone_number": "808-871-7772",
            "fax_number": "808-303-2774"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9576 HIGHWAY 70",
            "city": "MINOCQUA",
            "state": "WI",
            "postal_code": "545489067",
            "telephone_number": "715-358-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASEY",
        "first_name": "DUFFY",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-07-01",
        "last_updated": "2026-09-09",
        "certification_date": "2024-04-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "HI",
            "license": "MD 17116",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WI",
            "license": "82138",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Minocqua, WI

Sources for this page

Verify at the official NPI Registry.