Active NPI
Alexis J Blackwelder, FNP
- Family Nurse Practitioner
- Sioux Falls, SD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Nurse Practitioner
- License
- APN.0996628-NP
- Practice address
- 1210 W 18TH St Ste 100
Sioux Falls, SD 57104-4650 - Phone
- (605) 312-8500
- NPI assigned
- Mar 26, 2020
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nurse Practitioner | 363L00000X | CP002922 | SD | |
| Family Nurse Practitioner | 363LF0000X | APN.0996628-NP | CO | Primary |
| Nurse Practitioner | 363L00000X | C-APN.0002185 | CO |
Addresses
Primary practice location
1210 W 18TH St Ste 100
Sioux Falls, SD 57104-4650
Mailing address
2695 Rocky Mountain Ave Ste 150
Loveland, CO 80538-9071
Phone (970) 624-2422
Other names 1
- Alexis Joyce Frankhauser
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in SD
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2020
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1301 W 18TH St
Sioux Falls, SD 57105-0401
Phone (605) 312-2200
1305 W 18TH St
Sioux Falls, SD 57105-0401
Phone (605) 312-7300
4405 E 26TH St
Sioux Falls, SD 57103-4187
Phone (605) 332-2883
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| APN.0996628-NP | CO | MD | Family Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Sanford Medical Center | Nurse Practitioner | Current | Accepting new patients |
| Poudre Valley Medical Group, LLC | Current | Accepting new patients | |
| Poudre Valley Medical Group, LLC | Current | Accepting new patients |
Locations
4404 Barranca Ln
Castle Rock, CO 80104
Phone (720) 733-5260
1400 E Boulder St
Ste 700
Colorado Springs, CO 80909
Phone (719) 365-7172
8890 N Union Blvd
Colorado Springs, CO 80920
Phone (719) 364-5633
4110 Briargate Pkwy
Ste 405
Colorado Springs, CO 80920
Phone (719) 365-7300
175 Inverness Dr W
Ste 300
Englewood, CO 80112
Phone (720) 516-9092
8155 Piney River Ave
Ste 100
Littleton, CO 80125
Phone (303) 265-3370
2695 Rocky Mountain Ave
Ste 150
Loveland, CO 80538
Phone (970) 624-2412
1210 W 18th St
Ste 100
Sioux Falls, SD 57104
Phone (605) 312-8500
4405 E 26th St
Sioux Falls, SD 57103
Phone (605) 328-9000
1305 W 18th St
Sioux Falls, SD 57105
Phone (605) 312-7300
Organizations & group practices 3
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.
-
dba Edith Sanford Breast Specialty Clinic
- Family Medicine Physician
- Sioux Falls, SD
- NPI 1093090342
Nurse Practitioner
-
dba UCHealth Medical Group
- General Practice Physician
- Loveland, CO
- NPI 1225356868
-
dba UCHealth Medical Group
- General Practice Physician
- Loveland, CO
- NPI 1366763260
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Sanford USD Medical Center
- Air Ambulance
- Sioux Falls, SD
- NPI 1023299708
Hospital
-
dba Edith Sanford Breast Specialty Clinic
- Family Medicine Physician
- Sioux Falls, SD
- NPI 1093090342
Hospital
-
dba Sanford USD Medical Center
- General Acute Care Hospital
- Sioux Falls, SD
- NPI 1821017880
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1585180800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764633600000",
"number": "1588291744",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2695 ROCKY MOUNTAIN AVE STE 150",
"city": "LOVELAND",
"state": "CO",
"postal_code": "805389071",
"telephone_number": "970-624-2422"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1210 W 18TH ST STE 100",
"city": "SIOUX FALLS",
"state": "SD",
"postal_code": "571044650",
"telephone_number": "605-312-8500"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BLACKWELDER",
"first_name": "ALEXIS",
"middle_name": "J",
"credential": "FNP",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-03-26",
"last_updated": "2025-12-02",
"certification_date": "2025-12-02",
"status": "A"
},
"taxonomies": [
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "SD",
"license": "CP002922",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "CO",
"license": "APN.0996628-NP",
"primary": true
},
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "CO",
"license": "C-APN.0002185",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "ALEXIS",
"last_name": "FRANKHAUSER",
"middle_name": "JOYCE",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Sioux Falls, SD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.