Individual provider Active NPI

Erika Frey

  • Acute Care Nurse Practitioner
  • Williston, ND
National Provider Identifier
1225929680
Registry record updated Oct 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
203680 Issued in ND
Practice address
1301 15TH Ave W
Williston, ND 58801-3821
Phone
(701) 774-7400
NPI assigned
Jul 14, 2025
Sex
Female
Sole proprietor
No

Organizations & group practices 3

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 1

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

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mercy Medical Center 78 clinicians

Practice addresses (Care Compare)

1213 15TH Ave W
Williston, ND 58801-3895
Phone (701) 572-7651

Hospital & facility affiliations

  • CHI St Alexius Health Williston Hospital, Williston, ND, CCN 351334

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ND
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251126003137 ND Practitioner - Nurse Practitioner 6002308954 Reassigns benefits to 2 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
R52806NDMDRegistered Nurse
203680NDMDAcute Care Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Medical Center Current Accepting new patients
Mercy Medical Center CurrentSince Dec 1, 2025 Accepting new patients
Mercy Home Care CurrentSince Dec 1, 2025 Accepting new patients

Locations

3369 Solutions Ctr
Chicago, IL 60677

1213 15th Ave W
Williston, ND 58801
Phone (701) 572-7641

1301 15th Ave W
Williston, ND 58801
Phone (701) 774-7400

Specialties & licenses 2

NPPES NPI Registry
Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X 203680 ND Primary
Registered Nurse 163W00000X R52806 ND

Addresses

NPPES NPI Registry

Primary practice location

1301 15TH Ave W
Williston, ND 58801-3821

Mailing address

2325 17TH Ave W
Williston, ND 58801-2507
Phone (406) 230-1061

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Oct 22, 2025.

{
    "created_epoch": "1752451200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761091200000",
    "number": "1225929680",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2325 17TH AVE W",
            "city": "WILLISTON",
            "state": "ND",
            "postal_code": "588012507",
            "telephone_number": "406-230-1061"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1301 15TH AVE W",
            "city": "WILLISTON",
            "state": "ND",
            "postal_code": "588013821",
            "telephone_number": "701-774-7400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FREY",
        "first_name": "ERIKA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-07-14",
        "last_updated": "2025-10-22",
        "certification_date": "2025-10-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "ND",
            "license": "203680",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "ND",
            "license": "R52806",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Williston, ND

Sources for this page

Verify at the official NPI Registry.