Active NPI
Alexis Mae Semmler, NP-C
- Nurse Practitioner
- Hawarden, IA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nurse Practitioner
- License
- CP002478
- Practice address
- 1111 11TH St
Hawarden, IA 51023-1903 - Phone
- (712) 551-3100
- NPI assigned
- Jan 10, 2019
- Last updated
- Nov 17, 2025
- 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 | CP002478 | SD | Primary |
| Nurse Practitioner | 363L00000X | A152481 | IA | |
| Family Nurse Practitioner | 363LF0000X | A152481 | IA |
Addresses
Primary practice location
1111 11TH St
Hawarden, IA 51023-1903
Mailing address
817 Trojan Ave
Hartford, SD 57033-2307
Phone (605) 595-4423
Other practice location 1
100 W Hwy 38
Suite G
Hartford, SD 57033
Phone (605) 595-4423
Other practice location 2
1111 11th St
Hawarden, IA 51023-1903
Phone (712) 551-3100
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IA, SD
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2018
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Sanford Health Network
Practice addresses (Care Compare)
701 3Rd Ave S
Clear Lake, SD 57226-2016
Phone (605) 874-2141
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| CP002478 | SD | MD | Nurse Practitioner |
| A152481 | IA | MD | Family Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Avera McKennan | Current | Accepting new patients | |
| Sanford Health Network | Nurse Practitioner | Current | Accepting new patients |
| Cass County Memorial Hospital | Current | Accepting new patients | |
| Avera McKennan | Current | Accepting new patients | |
| Cass County Memorial Hospital | Current | Accepting new patients | |
| Regional Health Services of Howard County | Current | Accepting new patients | |
| Sanford Health Network | Current | Accepting new patients | |
| Avera McKennan | Current | Accepting new patients | |
| Dallas County Hospital | Nurse Practitioner | Current | Accepting new patients |
| Avera McKennan | Current | Accepting new patients | |
| Avera McKennan | Current | Accepting new patients | |
| Sanford Health Network | Current | Accepting new patients | |
| Woodbury Emergency Group, PC | Nurse Practitioner | Current | Accepting new patients |
| Avera Holy Family | Current | Accepting new patients | |
| Sanford Health Network | Current | Accepting new patients | |
| Alexis Semmler, NP-C, PLLC | Nurse Practitioner | Current | Accepting new patients |
| Dallas County Hospital | Current | Accepting new patients | |
| Avera McKennan | Current | Accepting new patients | |
| Regional Health Services of Howard County | Current | Accepting new patients | |
| Avera McKennan | Current | Accepting new patients | |
| Sanford Health Network | Current | Accepting new patients | |
| Sanford Health Network | Current | Accepting new patients | |
| Dallas County Hospital | Current | Accepting new patients | |
| Cass County Memorial Hospital | Nurse Practitioner | Current | Accepting new patients |
Locations
1501 E 10th St
Atlantic, IA 50022
Phone (712) 243-2850
235 8th Ave W
Cresco, IA 52136
Phone (319) 547-2101
1111 11th St
Hawarden, IA 51023
Phone (712) 551-3100
610 10th St
Perry, IA 50220
Phone (515) 465-3547
801 5th St
Sioux City, IA 51101
Phone (712) 279-2010
1200 1st Ave E
Spencer, IA 51301
Phone (712) 264-6164
200 Corporate Blvd
Lafayette, LA 70508
701 3rd Ave S
Clear Lake, SD 57226
Phone (605) 874-2141
20 S Plum St
Vermillion, SD 57069
Phone (605) 624-2611
Interoperability endpoints
- alexis.semmler@avera.sdhealthlink.net
Organizations & group practices 25
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba Avera Holy Family Hospital
- Critical Access Hospital
- Estherville, IA
- NPI 1508810177
-
- Critical Access Hospital
- Atlantic, IA
- NPI 1093760944
-
- Critical Access Hospital
- Atlantic, IA
- NPI 1861597122
Nurse Practitioner
-
- Critical Access Hospital
- Cresco, IA
- NPI 1730283326
-
- Emergency Medicine Physician
- Sioux City, IA
- NPI 1447813316
Nurse Practitioner
-
dba Avera Dells Area Hospital
- Critical Access Hospital
- Dell Rapids, SD
- NPI 1154350064
-
dba Avera Medical Group Womens Health Specialists Sioux Falls
- Obstetrics & Gynecology Physician
- Sioux Falls, SD
- NPI 1336111962
IA
-
dba Avera McKennan Behavioral Health Clinic
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Sioux Falls, SD
- NPI 1699009944
-
dba Sanford Chamberlain Medical Center
- Critical Access Hospital
- Chamberlain, SD
- NPI 1134140825
-
dba Sanford Care Center Vermillion
- Critical Access Hospital
- Vermillion, SD
- NPI 1790721280
-
dba Sanford Clear Lake Medical Center
- Critical Access Hospital
- Clear Lake, SD
- NPI 1851305296
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Avera Holy Family Hospital
- Critical Access Hospital
- Estherville, IA
- NPI 1508810177
-
dba Avera Dells Area Hospital
- Critical Access Hospital
- Dell Rapids, SD
- NPI 1154350064
-
dba Sanford Clinic Vermillion
- Family Medicine Physician
- Vermillion, SD
- NPI 1013921733
Hospital
-
dba Sanford Care Center Vermillion
- Critical Access Hospital
- Vermillion, SD
- NPI 1790721280
-
dba Sanford Clear Lake Medical Center
- Critical Access Hospital
- Clear Lake, SD
- NPI 1851305296
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1547078400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763337600000",
"number": "1861965089",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "817 TROJAN AVE",
"city": "HARTFORD",
"state": "SD",
"postal_code": "570332307",
"telephone_number": "605-595-4423"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1111 11TH ST",
"city": "HAWARDEN",
"state": "IA",
"postal_code": "510231903",
"telephone_number": "712-551-3100"
}
],
"practiceLocations": [
{
"address_1": "100 W Hwy 38",
"address_2": "Suite G",
"address_purpose": "LOCATION",
"city": "Hartford",
"state": "SD",
"postal_code": "57033",
"country_code": "US",
"telephone_number": "605-595-4423",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1111 11th St",
"address_purpose": "LOCATION",
"city": "Hawarden",
"state": "IA",
"postal_code": "510231903",
"country_code": "US",
"telephone_number": "712-551-3100",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "SEMMLER",
"first_name": "ALEXIS",
"middle_name": "MAE",
"credential": "NP-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2019-01-10",
"last_updated": "2025-11-17",
"certification_date": "2025-11-17",
"status": "A"
},
"taxonomies": [
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "SD",
"license": "CP002478",
"primary": true
},
{
"code": "363L00000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner",
"state": "IA",
"license": "A152481",
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "IA",
"license": "A152481",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Hawarden, IA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 17, 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.