Active NPI
Steven J Prock, CRNA
- Certified Registered Nurse Anesthetist
- Eau Claire, WI
National Provider Identifier
1194718445
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Certified Registered Nurse Anesthetist
- License
- 54733
- Practice address
- 1221 Whipple St
Eau Claire, WI 54703-5270 - Phone
- (715) 838-3311
- NPI assigned
- Aug 23, 2005
- 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 |
|---|---|---|---|---|
| Certified Registered Nurse Anesthetist | 367500000X | 54733 | WI | Primary |
Addresses
Primary practice location
1221 Whipple St
Eau Claire, WI 54703-5270
Mailing address
2107 Heights Dr
Eau Claire, WI 54701-6130
Phone (715) 834-8721
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 43285500 | 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
- Certified Registered Nurse
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 54733 | WI | MD | Neurology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1124755200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1194718445",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2107 HEIGHTS DR",
"city": "EAU CLAIRE",
"state": "WI",
"postal_code": "547016130",
"telephone_number": "715-834-8721",
"fax_number": "715-834-3087"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1221 WHIPPLE ST",
"city": "EAU CLAIRE",
"state": "WI",
"postal_code": "547035270",
"telephone_number": "715-838-3311"
}
],
"practiceLocations": [],
"basic": {
"last_name": "PROCK",
"first_name": "STEVEN",
"middle_name": "J",
"credential": "CRNA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-08-23",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "WI",
"license": "54733",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "43285500",
"state": "WI"
}
],
"endpoints": [],
"other_names": []
}Other providers in Eau Claire, WI
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.