Active NPI
Nathan J Timmer, MD
- Family Medicine Physician
- Mitchell, SD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 9264
- Practice address
- 402 E Norway Ave
Mitchell, SD 57301-4790 - Phone
- (605) 990-5005
- Fax
- (605) 990-5006
- NPI assigned
- Jun 28, 2011
- Last updated
- Jul 8, 2025
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 9264 | SD | Primary |
Addresses
Primary practice location
402 E Norway Ave
Mitchell, SD 57301-4790
Mailing address
402 E Norway Ave
Mitchell, SD 57301-4790
Phone (605) 990-5005
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
- Family Practice
- Education
- Other, 2011
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Avera Queen of Peace
Practice addresses (Care Compare)
1900 Grassland Dr
Mitchell, SD 57301-6335
Phone (605) 995-7000
402 E Norway Ave
Mitchell, SD 57301-4790
Phone (605) 990-5005
Hospital & facility affiliations
- Avera @ Home
- Avera @ Home
- Avera Queen of Peace
- Firesteel Healthcare Center
- Avera Brady Health and Rehab
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Removal of skin lesions | 1-10 |
| Removal or shaving of skin growth | 1-10 |
| Skin biopsy | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Avera Queen of Peace | Current | Accepting new patients | |
| Complete Wellness Clinic, Inc. | Family Medicine | Current | Accepting new patients |
| Avera Queen of Peace | Current | Accepting new patients | |
| Avera Queen of Peace | Current | Accepting new patients | |
| Rural Health Care, Inc. | Current | Accepting new patients | |
| Rural Health Care, Inc | Current | Accepting new patients | |
| Rural Health Care, Inc | Current | Accepting new patients | |
| Avera Queen of Peace | Current | Accepting new patients | |
| Firesteel SNF Operations, LLC | 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
402 E Norway Ave
Mitchell, SD 57301
Phone (605) 990-5005
525 N Foster St
Mitchell, SD 57301
Phone (605) 995-2000
Interoperability endpoints
- https://fhir4.healow.com/fhir/r4/BCIHDD/Endpoint/BCIHDD
Organizations & group practices 9
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.
-
- Family Medicine Physician
- Mitchell, SD
- NPI 1245037027
-
dba AMG Hospitalists Mitchell
- Hospitalist Physician
- Mitchell, SD
- NPI 1205359031
-
dba Avera Queen of Peace Hospital
- Critical Access Hospital
- Mitchell, SD
- NPI 1992466635
-
dba Access Health - Murdo
- Federally Qualified Health Center (FQHC)
- Murdo, SD
- NPI 1720076441
-
dba Avera Weskota Memorial Medical Center
- Critical Access Hospital
- Wessington Springs, SD
- NPI 1316942204
-
dba Avera Medical Group Orthopedics & Sports Medicine
- Specialist
- Mitchell, SD
- NPI 1699972422
-
dba Access Health Kennebec
- Federally Qualified Health Center (FQHC)
- Kennebec, SD
- NPI 1740669381
-
dba Access Health Marshall
- Federally Qualified Health Center (FQHC)
- Marshall, MN
- NPI 1740944602
-
dba Firesteel Healthcare Center
- Skilled Nursing Facility
- Mitchell, SD
- NPI 1639883994
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Avera Brady Health and Rehab
- Skilled Nursing Facility
- Mitchell, SD
- NPI 1144225129
Nursing home
-
dba Avera Queen of Peace Hospital
- Critical Access Hospital
- Mitchell, SD
- NPI 1992466635
-
dba Firesteel Healthcare Center
- Skilled Nursing Facility
- Mitchell, SD
- NPI 1639883994
Nursing home
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1309219200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1751932800000",
"number": "1972890911",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "402 E NORWAY AVE",
"city": "MITCHELL",
"state": "SD",
"postal_code": "573014790",
"telephone_number": "605-990-5005",
"fax_number": "605-990-5006"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "402 E NORWAY AVE",
"city": "MITCHELL",
"state": "SD",
"postal_code": "573014790",
"telephone_number": "605-990-5005",
"fax_number": "605-990-5006"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TIMMER",
"first_name": "NATHAN",
"middle_name": "J",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2011-06-28",
"last_updated": "2025-07-08",
"certification_date": "2025-07-08",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "SD",
"license": "9264",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Mitchell, SD
- Olivia Thompson, M.A., CF-SLP
- Quentin O Thompson I, DC
- Katherine Caroline Thomsen, RDN/LN
- Stacy Rae Thomsen, MA,CCC/SLP
- Thread Counseling Services
- Kayla Jo Tolsma, PT
- Meghan Jeane Torgerson, FNP-C
- Total Renal Care Inc (Mitchell Dialysis)
- Total Renal Care, Inc. (DaVita Peritoneal Dialysis Program - Mitchell)
- University Physical Therapy
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.