Active NPI
Tobias Mark Terhaar, DC
- Rehabilitation Chiropractor
- Festus, MO
National Provider Identifier
1821948043
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Rehabilitation Chiropractor
- License
- 2023002519
- Practice address
- 1113 W Gannon Dr
Festus, MO 63028-2602 - Phone
- (636) 251-5542
- NPI assigned
- Jan 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Rehabilitation Chiropractor | 111NR0400X | 2023002519 | MO | Primary |
Addresses
Primary practice location
1113 W Gannon Dr
Festus, MO 63028-2602
Mailing address
3923 Taplin CT
Bridgeton, MO 63044-2956
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)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2023002519 | MO | MD | Rehabilitation Chiropractor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1769558400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1769558400000",
"number": "1821948043",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3923 TAPLIN CT",
"city": "BRIDGETON",
"state": "MO",
"postal_code": "630442956"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1113 W GANNON DR",
"city": "FESTUS",
"state": "MO",
"postal_code": "630282602",
"telephone_number": "636-251-5542"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TERHAAR",
"first_name": "TOBIAS",
"middle_name": "MARK",
"name_prefix": "Dr.",
"credential": "DC",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2026-01-28",
"last_updated": "2026-01-28",
"certification_date": "2026-01-28",
"status": "A"
},
"taxonomies": [
{
"code": "111NR0400X",
"taxonomy_group": "",
"desc": "Chiropractor, Rehabilitation",
"state": "MO",
"license": "2023002519",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Festus, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 28, 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.