Active NPI
Mark A Mazzare, M.D.
- Internal Medicine Physician
- Tyler, TX
National Provider Identifier
1891769709
On this page
OIG exclusion record
The HHS Office of Inspector General’s List of Excluded Individuals/Entities (LEIE) contains a record with this NPI:
- Section 1128a(1) exclusion effective Jul 20, 2026.
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- K3331
- Practice address
- 5380 Old Bullard Rd Ste 600-357
Tyler, TX 75703-3607 - Phone
- (888) 316-5498
- Fax
- (888) 979-6378
- NPI assigned
- Feb 15, 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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | K3331 | TX | Primary |
Addresses
Primary practice location
5380 Old Bullard Rd Ste 600-357
Tyler, TX 75703-3607
Mailing address
5380 Old Bullard Rd Ste 600-357
Tyler, TX 75703-3607
Phone (888) 316-5498
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 127039910 | Medicaid | TX |
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
- HHS exclusion list flag
- Flagged The directory lists this NPI on an HHS exclusion list.
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Hillcrest Physician Services | Internal Medicine | Past | Accepting new patients |
| True Medicine, PA | Internal Medicine | Past | Accepting new patients |
| Hillcrest Family Health Center | Internal Medicine | Past | Accepting new patients |
| Scott & White Hospital - Taylor | Past | Accepting new patients | |
| DFW Hospitalists | Internal Medicine | Past | Accepting new patients |
Organizations & group practices 5
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
- Trophy Club, TX
- NPI 1316103757
-
- Internal Medicine Physician
- Waco, TX
- NPI 1649294323
-
- Emergency Medicine Physician
- Taylor, TX
- NPI 1659366557
-
- Internal Medicine Physician
- Trophy Club, TX
- NPI 1952550352
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1139961600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1698105600000",
"number": "1891769709",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5380 OLD BULLARD RD STE 600-357",
"city": "TYLER",
"state": "TX",
"postal_code": "757033607",
"telephone_number": "888-316-5498",
"fax_number": "888-979-6378"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5380 OLD BULLARD RD STE 600-357",
"city": "TYLER",
"state": "TX",
"postal_code": "757033607",
"telephone_number": "888-316-5498",
"fax_number": "888-979-6378"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MAZZARE",
"first_name": "MARK",
"middle_name": "A",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-15",
"last_updated": "2023-10-24",
"certification_date": "2023-10-24",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "K3331",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "127039910",
"state": "TX"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Tyler, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 24, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; OIG LEIE.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.