Individual provider Active NPI

Landon Mitchell Frank

  • Internal Medicine Physician
  • Tahlequah, OK
National Provider Identifier
1427625714
Registry record updated Aug 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
8183 Issued in OK
Practice address
1400 E Downing St
Tahlequah, OK 74464-3324
Phone
(918) 456-0641
NPI assigned
Jun 7, 2021
Last updated
Aug 12, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 12, 2025

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
Internal Medicine Physician 207R00000X 8183 OK Primary

Addresses

Primary practice location

1400 E Downing St
Tahlequah, OK 74464-3324

Mailing address

1400 E Downing St
Tahlequah, OK 74464-3324
Phone (918) 456-0641

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OK
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
I20250725001899 OK Practitioner - Internal Medicine 7719494772 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Oklahoma State University College of Osteopathic Medicine, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Northeastern Health SystemGroup PAC ID 1456255025, 105 clinicians

Practice addresses (Care Compare)

1400 E Downing St
Tahlequah, OK 74464-3324
Phone (918) 456-0641

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Northeastern Health System CurrentSince Aug 1, 2025 Accepting new patients
Northeastern Health System CurrentSince Aug 1, 2025 Accepting new patients
Northeastern Health System Current Accepting new patients
Northeastern Health System Past Accepting new patients

Locations

1373 E Boone St
Ste 2300
Tahlequah, OK 74464
Phone (918) 207-0025

1400 E Downing St
Tahlequah, OK 74464
Phone (918) 456-0641

Interoperability endpoints

  • FHIR API: https://fhir-myrecord.cerner.com/r4/932b43fb-c766-413c-a343-640549d20cb3/

Organizations & group practices 4

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 6

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": "1623024000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1427625714",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1400 E DOWNING ST",
            "city": "TAHLEQUAH",
            "state": "OK",
            "postal_code": "744643324",
            "telephone_number": "918-456-0641"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 E DOWNING ST",
            "city": "TAHLEQUAH",
            "state": "OK",
            "postal_code": "744643324",
            "telephone_number": "918-456-0641"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FRANK",
        "first_name": "LANDON",
        "middle_name": "MITCHELL",
        "name_prefix": "Mr.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-06-07",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OK",
            "license": "8183",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tahlequah, OK

Sources for this page

Verify at the official NPI Registry.