Active NPI
Steven Ray Horn, MD
- Diagnostic Radiology Physician
- Casper, WY
National Provider Identifier
1649247909
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Diagnostic Radiology Physician
- License
- 4018A
- Practice address
- 419 South Washington Street
Suite 101
Casper, WY 82601 - Phone
- (307) 265-1620
- Fax
- (307) 237-1074
- NPI assigned
- Mar 7, 2006
- Last updated
- Jul 13, 2026
- 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 |
|---|---|---|---|---|
| Diagnostic Radiology Physician | 2085R0202X | 4018A | WY | Primary |
Addresses
Primary practice location
419 South Washington Street
Suite 101
Casper, WY 82601
Mailing address
419 South Washington Street
Suite 101
Casper, WY 82601
Phone (307) 265-1620
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- HHS exclusion list flag
- CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found.
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 4018A | WY | MD | Diagnostic Radiology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1141689600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1649247909",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "419 SOUTH WASHINGTON STREET",
"address_2": "SUITE 101",
"city": "CASPER",
"state": "WY",
"postal_code": "82601",
"telephone_number": "307-265-1620",
"fax_number": "307-237-1074"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "419 SOUTH WASHINGTON STREET",
"address_2": "SUITE 101",
"city": "CASPER",
"state": "WY",
"postal_code": "82601",
"telephone_number": "307-265-1620",
"fax_number": "307-237-1074"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HORN",
"first_name": "STEVEN",
"middle_name": "RAY",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-03-07",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0202X",
"taxonomy_group": "",
"desc": "Radiology, Diagnostic Radiology",
"state": "WY",
"license": "4018A",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Casper, WY
- Catherine Hopman, MS, CCC-SLP
- Sandra J Hoppe, OTR/L
- Rocky Allen Hopson Jr.
- Ryan Patrick Hopson
- Horizon Behavioral Health and Wellness, LLC
- Hospitalist Medicine Physicians of Wyoming-TCG, LLC
- Hospitalist Services of Wyoming LLC
- Jennifer Rae Houser, BCBA
- Teresa Michelle Howard, FNP-C, CBN
- William Howell, LPC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.