Active NPI
Duane Haenfler, CRNA
- Certified Registered Nurse Anesthetist
- Rapid City, SD
National Provider Identifier
1154414696
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Certified Registered Nurse Anesthetist
- License
- R017871
- Practice address
- 353 Fairmont Blvd
Rapid City, SD 57701-7375 - Phone
- (605) 719-8289
- Fax
- (605) 719-7680
- NPI assigned
- Oct 2, 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 |
|---|---|---|---|---|
| Certified Registered Nurse Anesthetist | 367500000X | R017871 | SD | Primary |
Addresses
Primary practice location
353 Fairmont Blvd
Rapid City, SD 57701-7375
Mailing address
PO Box 3450
Rapid City, SD 57709-3450
Phone (605) 719-8289
Other identifiers 4
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0007771 | Other | SD | WELLMARK |
| 5750087 | Medicaid | SD | |
| 5750088 | Medicaid | SD | |
| 0007982 | Other | SD | WELLMARK |
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 0123 | SD | MD | Physician Assistant |
| R017871 | SD | MD | Certified Registered Nurse Anesthetist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| West River Anesthesiology Consultants PC | Past | Accepting new patients |
Organizations & group practices 1
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.
-
- Anesthesiology Physician
- Rapid City, SD
- NPI 1396775284
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1159747200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789257600000",
"number": "1154414696",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 3450",
"city": "RAPID CITY",
"state": "SD",
"postal_code": "577093450",
"telephone_number": "605-719-8289",
"fax_number": "605-719-7680"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "353 FAIRMONT BLVD",
"city": "RAPID CITY",
"state": "SD",
"postal_code": "577017375",
"telephone_number": "605-719-8289",
"fax_number": "605-719-7680"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HAENFLER",
"first_name": "DUANE",
"credential": "CRNA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-10-02",
"last_updated": "2026-09-13",
"status": "A"
},
"taxonomies": [
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "SD",
"license": "R017871",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "WELLMARK",
"identifier": "0007771",
"state": "SD"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "5750087",
"state": "SD"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "5750088",
"state": "SD"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "WELLMARK",
"identifier": "0007982",
"state": "SD"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Rapid City, SD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 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.