Individual provider Active NPI

Riley Pierce, CRNA

  • Certified Registered Nurse Anesthetist
  • Little Rock, AR
National Provider Identifier
1255124244
Registry record updated Dec 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
4771672 Issued in ID
Practice address
4301 W Markham St
Little Rock, AR 72205-7199
Phone
(501) 686-5224
NPI assigned
May 23, 2025
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 4, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 4771672 ID Primary

Addresses

Primary practice location

4301 W Markham St
Little Rock, AR 72205-7199

Mailing address

4301 W Markham St
Little Rock, AR 72205-7101
Phone (501) 686-5224

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ID

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251218000607 ID Practitioner - Certified Registered Nurse Anesthetist (Crna) 4082109962 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mountain View Hospital LLCGroup PAC ID 4486562774, 272 clinicians

Practice addresses (Care Compare)

2325 Coronado St
Idaho Falls, ID 83404-7407
Phone (208) 557-2700

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
4771672IDMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Mountain View Hospital LLC CurrentSince Nov 1, 2025 Accepting new patients

Locations

2325 Coronado St
Idaho Falls, ID 83404
Phone (208) 528-7686

Organizations & group practices 1

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.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1747958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764806400000",
    "number": "1255124244",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4301 W MARKHAM ST",
            "city": "LITTLE ROCK",
            "state": "AR",
            "postal_code": "722057101",
            "telephone_number": "501-686-5224"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4301 W MARKHAM ST",
            "city": "LITTLE ROCK",
            "state": "AR",
            "postal_code": "722057199",
            "telephone_number": "501-686-5224"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PIERCE",
        "first_name": "RILEY",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-05-23",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "ID",
            "license": "4771672",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Little Rock, AR

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 4, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.

Verify at the official NPI Registry.