Active NPI
Maria A Ludens, MD
- Internal Medicine Physician
- Mitchell, SD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 17752
- Practice address
- 1900 Grassland Dr
Mitchell, SD 57301-6335 - Phone
- (605) 995-7000
- NPI assigned
- Mar 27, 2022
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 17752 | SD | Primary |
Addresses
Primary practice location
1900 Grassland Dr
Mitchell, SD 57301-6335
Mailing address
44663 262ND St
Canistota, SD 57012-6424
Phone (605) 421-9841
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: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 2022
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1900 Grassland Dr
Suite 103
Mitchell, SD 57301-6386
Phone (605) 995-7000
609 Garfield Ave
Murdo, SD 57559-4100
Phone (605) 669-2121
Hospital & facility affiliations
- Avera Queen of Peace
- Avera McKennan Hospital & University Health Center
- Firesteel Healthcare Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 17752 | SD | MD | Internal Medicine Physician |
| 0656 | SD | MD | Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Rural Health Care, Inc | Current | Accepting new patients | |
| Avera Queen of Peace | Internal Medicine | Current | Accepting new patients |
| Rural Health Care, Inc | Internal Medicine | Current | Accepting new patients |
| Avera Queen of Peace | Current | Accepting new patients | |
| Rural Health Care, Inc. | Current | Accepting new patients | |
| Avera Queen of Peace | Current | Accepting new patients | |
| Avera Queen of Peace | Past | Accepting new patients |
Locations
1900 Grassland Dr
Mitchell, SD 57301
Phone (605) 655-1220
1900 Grassland Dr
Ste 103
Mitchell, SD 57301
Phone (605) 995-4900
525 N Foster St
Mitchell, SD 57301
Phone (605) 995-2000
Organizations & group practices 7
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.
-
- Federally Qualified Health Center (FQHC)
- Murdo, SD
- NPI 1720076441
-
- Hospitalist Physician
- Mitchell, SD
- NPI 1205359031
-
- Critical Access Hospital
- Wessington Springs, SD
- NPI 1316942204
-
- Internal Medicine Physician
- Mitchell, SD
- NPI 1528348406
-
- Federally Qualified Health Center (FQHC)
- Mitchell, SD
- NPI 1669027678
Internal Medicine
-
- Federally Qualified Health Center (FQHC)
- Marshall, MN
- NPI 1740944602
-
- Rural Health Clinic/Center
- Howard, SD
- NPI 1326043092
Hospital & facility affiliations 25
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Sioux Falls, SD
- NPI 1154531630
-
- General Acute Care Hospital
- Sioux Falls, SD
- NPI 1184834764
-
- Endocrinology, Diabetes & Metabolism Physician
- Sioux Falls, SD
- NPI 1396711016
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1648339200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1761696000000",
"number": "1194475681",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "44663 262ND ST",
"city": "CANISTOTA",
"state": "SD",
"postal_code": "570126424",
"telephone_number": "605-421-9841"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1900 GRASSLAND DR",
"city": "MITCHELL",
"state": "SD",
"postal_code": "573016335",
"telephone_number": "605-995-7000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LUDENS",
"first_name": "MARIA",
"middle_name": "A",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2022-03-27",
"last_updated": "2025-10-29",
"certification_date": "2025-10-29",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "SD",
"license": "17752",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Mitchell, SD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 29, 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.