Active NPI
Kelsi Erin Leigh Alexander, D.O.
- Pediatric Nephrology Physician
- Wauwatosa, WI
National Provider Identifier
1407475536
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Nephrology Physician
- License
- 80053-21
- Practice address
- 999 N 92ND St
Wauwatosa, WI 53226-4875 - Phone
- (414) 266-7539
- NPI assigned
- Apr 9, 2020
- Last updated
- Oct 7, 2026
- 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 |
|---|---|---|---|---|
| Pediatric Nephrology Physician | 2080P0210X | 80053-21 | WI | Primary |
Addresses
Primary practice location
999 N 92ND St
Wauwatosa, WI 53226-4875
Mailing address
999 N 92ND St
Wauwatosa, WI 53226-4875
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)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 80053-21 | WI | MD | Pediatric Nephrology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1586390400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1791331200000",
"number": "1407475536",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "999 N 92ND ST",
"city": "WAUWATOSA",
"state": "WI",
"postal_code": "532264875"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "999 N 92ND ST",
"city": "WAUWATOSA",
"state": "WI",
"postal_code": "532264875",
"telephone_number": "414-266-7539"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ALEXANDER",
"first_name": "KELSI",
"middle_name": "ERIN LEIGH",
"credential": "D.O.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-04-09",
"last_updated": "2026-10-07",
"certification_date": "2026-10-07",
"status": "A"
},
"taxonomies": [
{
"code": "2080P0210X",
"taxonomy_group": "",
"desc": "Pediatrics, Pediatric Nephrology",
"state": "WI",
"license": "80053-21",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Wauwatosa, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 7, 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.