Active NPI
Duffy M Casey, MD
- Obstetrics & Gynecology Physician
- Minocqua, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- 82138
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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, WI
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
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 Inc
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
| License | State | Type | Specialty |
|---|---|---|---|
| MD 17116 | HI | MD | Obstetrics & Gynecology Physician |
| 82138 | WI | MD | Obstetrics & Gynecology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Memorial Hospital Inc | Current | Accepting new patients | |
| Community Clinic of Maui, Inc. | Current | Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Community Clinic of Maui, Inc. | Current | Accepting new patients | |
| Flambeau Hospital Inc | Current | Accepting new patients | |
| Community Clinic of Maui, Inc. | Current | Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Beaver Dam Community Hospitals Inc | Current | Accepting new patients | |
| Beaver Dam Community Hospitals Inc | Current | Accepting new patients | |
| MCHS Hospitals Inc | Current | Accepting new patients | |
| Flambeau Hospital Inc | Current | Accepting new patients | |
| Marshfield Clinic Inc | Current | Accepting new patients | |
| Lakeview Medical Center Inc of Rice Lake | Current | Accepting new patients | |
| Community Clinic of Maui, Inc. | Past | 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.
-
- Clinic/Center
- Beaver Dam, WI
- NPI 1972188555
-
- Clinic/Center
- Park Falls, WI
- NPI 1194317966
-
- Critical Access Hospital
- Park Falls, WI
- NPI 1700963048
-
- Clinic/Center
- Rice Lake, WI
- NPI 1093201832
-
- Clinic/Center
- Marshfield, WI
- NPI 1952347981
-
- Clinic/Center
- Marshfield, WI
- NPI 1093221434
-
- Critical Access Hospital
- Ladysmith, WI
- NPI 1952890873
-
- Critical Access Hospital
- Neillsville, WI
- NPI 1346239373
-
- Community Health Clinic/Center
- Wailuku, HI
- NPI 1528042561
-
- Pharmacy
- Beaver Dam, WI
- NPI 1295771780
-
- Durable Medical Equipment & Medical Supplies
- Eau Claire, WI
- NPI 1558230847
-
- Community Health Clinic/Center
- Wailuku, HI
- NPI 1225281793
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 2026; 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.