Individual provider Active NPI

Alexis J Blackwelder, FNP

  • Family Nurse Practitioner
  • Sioux Falls, SD
National Provider Identifier
1588291744
Registry record updated Dec 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
APN.0996628-NP Issued in CO
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

Updated by the provider on Dec 2, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
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 Former name

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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20231004002123 SD Practitioner - Nurse Practitioner 8224454210 Reassigns benefits to 1 organization

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
Sanford Medical CenterGroup PAC ID 8325950215, 847 clinicians

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

LicenseStateTypeSpecialty
APN.0996628-NPCOMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Sanford Medical Center Nurse Practitioner CurrentSince Sep 11, 2023 Accepting new patients
Poudre Valley Medical Group, LLC CurrentSince Aug 11, 2020 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.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

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

Verify at the official NPI Registry.