Individual provider Active NPI

Keenan Larsen, DO

  • Internal Medicine Physician
  • Jbsa Ft Sam Houston, TX
National Provider Identifier
1962025817
Registry record updated Jul 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
34.017348 Issued in OH
Practice address
3551 Roger Brooke Dr
Jbsa Ft Sam Houston, TX 78234-4504
Phone
(210) 916-0797
NPI assigned
May 27, 2020
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 34.017348 OH Primary

Addresses

Primary practice location

3551 Roger Brooke Dr
Jbsa Ft Sam Houston, TX 78234-4504

Mailing address

3551 Roger Brooke Dr
Jbsa Ft Sam Houston, TX 78234-4504
Phone (210) 916-0797

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

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

NPI Registry JSON

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

{
    "created_epoch": "1590537600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782950400000",
    "number": "1962025817",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3551 ROGER BROOKE DR",
            "city": "JBSA FT SAM HOUSTON",
            "state": "TX",
            "postal_code": "782344504",
            "telephone_number": "210-916-0797"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3551 ROGER BROOKE DR",
            "city": "JBSA FT SAM HOUSTON",
            "state": "TX",
            "postal_code": "782344504",
            "telephone_number": "210-916-0797"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSEN",
        "first_name": "KEENAN",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-05-27",
        "last_updated": "2026-07-02",
        "certification_date": "2026-07-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OH",
            "license": "34.017348",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Jbsa Ft Sam Houston, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.