Individual provider Active NPI

Nathan Toenjes, DO

  • Family Medicine Physician
  • Casper, WY
National Provider Identifier
1821788654
Registry record updated Aug 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
18764A Issued in WY
Practice address
1522 E a St
Casper, WY 82601-2221
Phone
(307) 234-6161
NPI assigned
May 15, 2023
Last updated
Aug 13, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 13, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Family Medicine Physician 207Q00000X 18764A WY Primary

Addresses

Primary practice location

1522 E a St
Casper, WY 82601-2221

Mailing address

1522 E a St
Casper, WY 82601-2221
Phone (307) 234-6161

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WY
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240905003245 WY Order and Referring Only - Family PracticePractitioner - Family Practice 7113467184

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

Practice roles

OrganizationSpecialtyStatusNew patients
Freestone Family Medicine and Wellness PLLC Family Medicine Current Accepting new patients

Interoperability endpoints

  • Direct secure messaging: nathan.toenjes.1@30244.direct.athenahealth.com

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1684108800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786579200000",
    "number": "1821788654",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1522 E A ST",
            "city": "CASPER",
            "state": "WY",
            "postal_code": "826012221",
            "telephone_number": "307-234-6161",
            "fax_number": "307-234-7033"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1522 E A ST",
            "city": "CASPER",
            "state": "WY",
            "postal_code": "826012221",
            "telephone_number": "307-234-6161"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOENJES",
        "first_name": "NATHAN",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-05-15",
        "last_updated": "2026-08-13",
        "certification_date": "2026-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WY",
            "license": "18764A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Casper, WY

Sources for this page

Verify at the official NPI Registry.