Active NPI
John Ardis Linfoot Jr., M.D., M.P.H.
- Critical Care Medicine (Internal Medicine) Physician
- Fort Sam Houston, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Critical Care Medicine (Internal Medicine) Physician
- License
- M1205
- Practice address
- Brooke Army Medical Center, McHe-QD/ Credentials
3851 Roger Brooke Dr
Fort Sam Houston, TX 78234-6200 - Phone
- (210) 916-5250
- Fax
- (210) 916-1602
- NPI assigned
- Oct 25, 2005
- 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 |
|---|---|---|---|---|
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | M1205 | TX | Primary |
Addresses
Primary practice location
Brooke Army Medical Center, McHe-QD/ Credentials
3851 Roger Brooke Dr
Fort Sam Houston, TX 78234-6200
Mailing address
1517 Cordillera Trce
Boerne, TX 78006-4233
Phone (830) 230-5097
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Hospitalist Medicine Physicians of Texas, PLLC | Current | Accepting new patients |
Locations
1500 S Main St
Ft Worth, TX 76104
Phone (817) 921-3431
7600 Beechnut St
Houston, TX 77074
Phone (713) 456-5000
18951 N Memorial Dr
Humble, TX 77338
Phone (281) 319-8409
551 Hill Country Dr
Kerrville, TX 78028
Phone (830) 257-5414
2600 Saint Michael Dr
Texarkana, TX 75503
Phone (903) 614-1000
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 and National Provider Directory roles.
-
- Internal Medicine Physician
- Humble, TX
- NPI 1629307095
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1130198400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1316937899",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1517 CORDILLERA TRCE",
"city": "BOERNE",
"state": "TX",
"postal_code": "780064233",
"telephone_number": "830-230-5097",
"fax_number": "830-230-5097"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "BROOKE ARMY MEDICAL CENTER, MCHE-QD/ CREDENTIALS",
"address_2": "3851 ROGER BROOKE DR",
"city": "FORT SAM HOUSTON",
"state": "TX",
"postal_code": "782346200",
"telephone_number": "210-916-5250",
"fax_number": "210-916-1602"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LINFOOT",
"first_name": "JOHN",
"middle_name": "ARDIS",
"name_prefix": "Dr.",
"name_suffix": "Jr.",
"credential": "M.D., M.P.H.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-10-25",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "TX",
"license": "M1205",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Fort 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 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.