Individual provider Active NPI

Krista Elkin, CRNA

  • Certified Registered Nurse Anesthetist
  • Billings, MT
National Provider Identifier
1033165022
Registry record updated Dec 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
101087 Issued in MT
Practice address
940 N 30TH St
Billings, MT 59101-0742
Phone
(406) 248-7186
NPI assigned
May 25, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 12, 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 101087 MT Primary

Addresses

Primary practice location

940 N 30TH St
Billings, MT 59101-0742

Mailing address

PO Box 1155
Billings, MT 59103-1155
Phone (406) 248-3290

Other names 1

  • Krista R Ramirez Former name

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20151030001507 MT Practitioner - Certified Registered Nurse Anesthetist (Crna) 3577535848 Reassigns benefits to 3 organizations
Practice locations: Billings, MT

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
101087MTMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Billings Clinic Current Accepting new patients
Billings Clinic CurrentSince Oct 14, 2024 Accepting new patients
Memorial Hospital Association CurrentSince Nov 21, 2025 Accepting new patients
Memorial Hospital Association CurrentSince Jul 1, 2025 Accepting new patients
Memorial Hospital Association CurrentSince Jul 1, 2025 Accepting new patients
Billings Clinic CurrentSince Oct 14, 2024 Accepting new patients
Baycare Anesthesia Associates LLC Past Accepting new patients
North Pinellas Anesthesia Associates, PA Nurse Anesthetist, Certified Registered PastSince May 7, 2023 Accepting new patients
Zephyrhills Anesthesiology Associates LLC PastSince Jul 28, 2025 Accepting new patients

Locations

2800 10th Ave N
Billings, MT 59101
Phone (406) 248-3290

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 and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1148515200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765497600000",
    "number": "1033165022",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1155",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591031155",
            "telephone_number": "406-248-3290",
            "fax_number": "406-248-3346"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "940 N 30TH ST",
            "city": "BILLINGS",
            "state": "MT",
            "postal_code": "591010742",
            "telephone_number": "406-248-7186"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ELKIN",
        "first_name": "KRISTA",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-25",
        "last_updated": "2025-12-12",
        "certification_date": "2025-12-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MT",
            "license": "101087",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KRISTA",
            "last_name": "RAMIREZ",
            "middle_name": "R",
            "credential": "CRNA",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Billings, MT

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 12, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.