Active NPI
Clayton Milner, M.D.
- Family Medicine Physician
- Spencer, IA
National Provider Identifier
1790028298
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- MD-43808
- Practice address
- 1200 Grand Ave
Spencer, IA 51301-3501 - Phone
- (785) 393-8223
- NPI assigned
- Apr 3, 2013
- Sex
- Male
- 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 |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | MD-43808 | IA | Primary |
Addresses
Primary practice location
1200 Grand Ave
Spencer, IA 51301-3501
Mailing address
PO Box 2314
Sioux City, IA 51106-0314
Phone (785) 393-8223
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: No
- Medical equipment: Yes
- Home health: No
- Power mobility devices: Yes
- Hospice: No
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD-43808 | IA | MD | Family Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1364947200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785196800000",
"number": "1790028298",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 2314",
"city": "SIOUX CITY",
"state": "IA",
"postal_code": "511060314",
"telephone_number": "785-393-8223",
"fax_number": "785-393-8223"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1200 GRAND AVE",
"city": "SPENCER",
"state": "IA",
"postal_code": "513013501",
"telephone_number": "785-393-8223"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MILNER",
"first_name": "CLAYTON",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2013-04-03",
"last_updated": "2026-07-28",
"certification_date": "2026-07-28",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "IA",
"license": "MD-43808",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Spencer, IA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2026; 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.