Active NPI
Chadwick Nierva
- Internal Medicine Physician
- Las Vegas, NV
National Provider Identifier
1225880883
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- LL4692
- Practice address
- 6655 S Cimarron Rd Ste 100
Las Vegas, NV 89113-2181 - Phone
- (702) 853-3561
- NPI assigned
- Apr 4, 2024
- 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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | LL4692 | NV | Primary |
Addresses
Primary practice location
6655 S Cimarron Rd Ste 100
Las Vegas, NV 89113-2181
Mailing address
6655 S Cimarron Rd Ste 100
Las Vegas, NV 89113-2181
Phone (702) 853-3564
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
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1712188800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787875200000",
"number": "1225880883",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6655 S CIMARRON RD STE 100",
"city": "LAS VEGAS",
"state": "NV",
"postal_code": "891132181",
"telephone_number": "702-853-3564"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6655 S CIMARRON RD STE 100",
"city": "LAS VEGAS",
"state": "NV",
"postal_code": "891132181",
"telephone_number": "702-853-3561"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NIERVA",
"first_name": "CHADWICK",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2024-04-04",
"last_updated": "2026-08-28",
"certification_date": "2026-08-28",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "NV",
"license": "LL4692",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Las Vegas, NV
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 28, 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.