Active NPI
Mary J Degenhardt, CNS-BC, APNP, RN
- Gerontology Clinical Nurse Specialist
- Milwaukee, WI
National Provider Identifier
1881493062
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gerontology Clinical Nurse Specialist
- License
- 9259-33
- Practice address
- 5000 W National Ave
Milwaukee, WI 53295-0001 - Phone
- (414) 384-2000
- NPI assigned
- Mar 11, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gerontology Clinical Nurse Specialist | 364SG0600X | 9259-33 | WI | Primary |
Addresses
Primary practice location
5000 W National Ave
Milwaukee, WI 53295-0001
Mailing address
5000 W National Ave
Milwaukee, WI 53295-0001
Phone (414) 384-2000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Registered Nurse
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 9259-33 | WI | MD | Gerontology Clinical Nurse Specialist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1741651200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778025600000",
"number": "1881493062",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5000 W NATIONAL AVE",
"city": "MILWAUKEE",
"state": "WI",
"postal_code": "532950001",
"telephone_number": "414-384-2000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5000 W NATIONAL AVE",
"city": "MILWAUKEE",
"state": "WI",
"postal_code": "532950001",
"telephone_number": "414-384-2000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DEGENHARDT",
"first_name": "MARY",
"middle_name": "J",
"credential": "CNS-BC, APNP, RN",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-03-11",
"last_updated": "2026-05-06",
"certification_date": "2026-05-06",
"status": "A"
},
"taxonomies": [
{
"code": "364SG0600X",
"taxonomy_group": "",
"desc": "Clinical Nurse Specialist, Gerontology",
"state": "WI",
"license": "9259-33",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Milwaukee, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.