Individual provider Active NPI

Theresa L. Simmons, C.R.N.A.

  • Certified Registered Nurse Anesthetist
  • Gillette, WY
National Provider Identifier
1538258520
Registry record updated Feb 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
101379 Issued in NE
Practice address
501 S Burma Ave
Gillette, WY 82716-3426
Phone
(307) 688-1524
Fax
(307) 687-7243
NPI assigned
Oct 11, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 27, 2026

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 101379 NE Primary

Addresses

Primary practice location

501 S Burma Ave
Gillette, WY 82716-3426

Mailing address

1000 Pole Creek Crossing
Sidney, NE 69162-2900
Phone (308) 254-5825

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WY, SD, NE3 enrollments

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20040220001085 WY Practitioner - Certified Registered Nurse Anesthetist (Crna) 6709771371 Reassigns benefits to 1 organization
I20081119000042 SD Practitioner - Certified Registered Nurse Anesthetist (Crna) 6709771371 Reassigns benefits to 1 organization
I20161227000119 NE Practitioner - Certified Registered Nurse Anesthetist (Crna) 6709771371 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1000 Pole Creek Xing
Sidney, NE 69162-2901
Phone (308) 254-5825

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
101379NEMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Cheyenne County Hospital Association CurrentSince Dec 19, 2016 Accepting new patients
Ivinson Memorial Hospital CurrentSince Feb 16, 2018 Accepting new patients
Avera St. Mary's CurrentSince Apr 6, 2013 Accepting new patients
Avera St Marys Current Accepting new patients
Avera St Marys Nurse Anesthetist, Certified Registered CurrentSince Apr 6, 2013 Accepting new patients
Ivinson Memorial Hospital CurrentSince Feb 16, 2018 Accepting new patients
Cheyenne County Hospital Association Inc CurrentSince Dec 19, 2016 Accepting new patients

Locations

645 Osage St
Sidney, NE 69162
Phone (308) 254-5825

1000 Pole Creek Xing
Sidney, NE 69162
Phone (308) 254-5825

3116 Willett Dr
Laramie, WY 82072
Phone (307) 742-6319

255 N 30th St
Laramie, WY 82072
Phone (307) 742-2141

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 1

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": "1160524800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772150400000",
    "number": "1538258520",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 POLE CREEK CROSSING",
            "city": "SIDNEY",
            "state": "NE",
            "postal_code": "691622900",
            "telephone_number": "308-254-5825"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "501 S BURMA AVE",
            "city": "GILLETTE",
            "state": "WY",
            "postal_code": "827163426",
            "telephone_number": "307-688-1524",
            "fax_number": "307-687-7243"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIMMONS",
        "first_name": "THERESA",
        "middle_name": "L.",
        "credential": "C.R.N.A.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-10-11",
        "last_updated": "2026-02-27",
        "certification_date": "2026-02-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "NE",
            "license": "101379",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Gillette, WY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 27, 2026; 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.