Active NPI
Robert P Sievert, D.O.
- Emergency Medicine Physician
- Fort Atkinson, WI
National Provider Identifier
1003895467
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- 24621-021
- Practice address
- 611 Sherman Ave E
Fort Atkinson, WI 53538-1960 - Phone
- (920) 568-5330
- Fax
- (920) 568-5075
- NPI assigned
- Jan 13, 2006
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 24621-021 | WI | Primary |
Addresses
Primary practice location
611 Sherman Ave E
Fort Atkinson, WI 53538-1960
Mailing address
6400 Industrial Loop
Greendale, WI 53129-2452
Phone (414) 423-4100
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 30018200 | Medicaid | WI |
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 |
|---|---|---|---|
| 24621-021 | WI | MD | Emergency Medicine Physician |
Interoperability endpoints
- robert.sievert@direct.forthc.com
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1137110400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1003895467",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6400 INDUSTRIAL LOOP",
"city": "GREENDALE",
"state": "WI",
"postal_code": "531292452",
"telephone_number": "414-423-4100",
"fax_number": "414-423-4134"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "611 SHERMAN AVE E",
"city": "FORT ATKINSON",
"state": "WI",
"postal_code": "535381960",
"telephone_number": "920-568-5330",
"fax_number": "920-568-5075"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SIEVERT",
"first_name": "ROBERT",
"middle_name": "P",
"name_prefix": "Dr.",
"credential": "D.O.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-01-13",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "WI",
"license": "24621-021",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "30018200",
"state": "WI"
}
],
"endpoints": [],
"other_names": []
}Other providers in Fort Atkinson, WI
- Shopko Stores Operating Co LLC (ShopKo Pharmacy 051)
- Shopko Stores Operating Co. LLC (ShopKo Optical 051)
- Shoptikal LLC (Shopko Optical 4051)
- Showalter, Inc (Rock River Dental)
- Leslie Leigh Showalter, D.D.S.
- Luke Joseph Smith, D.C.
- Nichole Lynn Smith, REGISTERED NURSE
- Samuel C Smith, PHD
- Nathan Spangler, CRNA
- Jenna N Specchio, SLP
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.