Active NPI
Keenan Larsen, DO
- Internal Medicine Physician
- Jbsa Ft Sam Houston, TX
National Provider Identifier
1962025817
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 34.017348
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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.