Active NPI
Matthew Tjahja
- Hospitalist Physician
- Knoxville, TN
National Provider Identifier
1467088450
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hospitalist Physician
- License
- 74198
- Practice address
- 1924 Alcoa Hwy # U56
Knoxville, TN 37920-1511 - Phone
- (865) 305-6446
- NPI assigned
- Mar 21, 2020
- Last updated
- Aug 28, 2026
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | NU | ||
| Internal Medicine Physician | 207R00000X | U2338 | TX | |
| Hospitalist Physician | 208M00000X | 74198 | TN | Primary |
Addresses
Primary practice location
1924 Alcoa Hwy # U56
Knoxville, TN 37920-1511
Mailing address
PO Box 844658
Dallas, TX 75284-4658
Phone (800) 994-0371
Other practice location 1
2401 S 31st St # MS 01161B
Temple, TX 76508-0001
Phone (254) 724-2111
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | mtjahja278324@direct.sw.org |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX, TN
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Texas a & M University System, HSC, College of Medicine, 2020
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
607 Camden St
Suite 108
San Antonio, TX 78215-2100
Phone (210) 253-3426
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Statcare Inpatient LLC | Internal Medicine | Current | Accepting new patients |
| Texas Liver Consultants PA | Current | Accepting new patients |
Locations
1901 Clinch Ave
Knoxville, TN 37916
Phone (865) 331-1111
607 Camden St
Ste 108
San Antonio, TX 78215
Phone (210) 325-8402
Organizations & group practices 2
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.
-
dba Texas Liver Institute
- Hepatology Physician
- San Antonio, TX
- NPI 1851638571
-
- Internal Medicine Physician
- Knoxville, TN
- NPI 1477086981
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Lenoir City, TN
- NPI 1609860659
-
dba Peninsula Div Parkwest MC
- General Acute Care Hospital
- Knoxville, TN
- NPI 1396739165
-
dba University Health
- General Acute Care Hospital
- San Antonio, TX
- NPI 1821011248
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1584748800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787875200000",
"number": "1467088450",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 844658",
"city": "DALLAS",
"state": "TX",
"postal_code": "752844658",
"telephone_number": "800-994-0371",
"fax_number": "254-215-9722"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1924 ALCOA HWY # U56",
"city": "KNOXVILLE",
"state": "TN",
"postal_code": "379201511",
"telephone_number": "865-305-6446"
}
],
"practiceLocations": [
{
"address_1": "2401 S 31st St # MS 01161B",
"address_purpose": "LOCATION",
"city": "Temple",
"state": "TX",
"postal_code": "765080001",
"country_code": "US",
"telephone_number": "254-724-2111",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "TJAHJA",
"first_name": "MATTHEW",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2020-03-21",
"last_updated": "2026-08-28",
"certification_date": "2026-08-28",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": "NU",
"license": null,
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "U2338",
"primary": false
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "TN",
"license": "74198",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mtjahja278324@direct.sw.org",
"affiliation": "N",
"address_1": "1605 S 31st",
"city": "Temple",
"state": "TX",
"country_code": "US",
"postal_code": "765080001",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}Other providers in Knoxville, TN
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 28, 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.