Active NPI
Mark W Hassinger, D.D.S.
- General Practice Dentistry
- Amarillo, TX
National Provider Identifier
1073582227
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Dentistry
- License
- 11655
- Practice address
- 6937 Bell St
Ste. B
Amarillo, TX 79109-7018 - Phone
- (806) 353-1704
- Fax
- (806) 353-9477
- NPI assigned
- Mar 17, 2006
- 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 |
|---|---|---|---|---|
| General Practice Dentistry | 1223G0001X | 11655 | TX | Primary |
Addresses
Primary practice location
6937 Bell St
Ste. B
Amarillo, TX 79109-7018
Mailing address
6937 Bell St
Ste. B
Amarillo, TX 79109-7018
Phone (806) 353-1704
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 |
|---|---|---|---|
| 11655 | TX | MD | General Practice Dentistry |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1142553600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1073582227",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6937 BELL ST",
"address_2": "STE. B",
"city": "AMARILLO",
"state": "TX",
"postal_code": "791097018",
"telephone_number": "806-353-1704",
"fax_number": "806-353-9477"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6937 BELL ST",
"address_2": "STE. B",
"city": "AMARILLO",
"state": "TX",
"postal_code": "791097018",
"telephone_number": "806-353-1704",
"fax_number": "806-353-9477"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HASSINGER",
"first_name": "MARK",
"middle_name": "W",
"name_prefix": "Dr.",
"credential": "D.D.S.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-03-17",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "1223G0001X",
"taxonomy_group": "",
"desc": "Dentist, General Practice",
"state": "TX",
"license": "11655",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Amarillo, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.