Dr. Glenn A Brien Sr., DDS
Dr. Glenn A Brien Sr. is a Dentist provider (Dentist) practicing in Mendenhall, MS, registered in the NPPES registry with NPI 1639249568 since 2006. The credential DDS stands for Doctor of Dental Surgery.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1639249568 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Glenn A Brien Sr. |
| Credential | DDS |
| Sex | Male |
| Practice address | 122 MAIN ST, Mendenhall, MS, 39114 |
| Phone | 6018472582 |
| Enumeration date | 2006-11-08 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 122300000X | Dentist | Primary | 159874 | MS |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00063256 | Medicaid | MS | — |
Copy-ready billing details
Provider: Glenn Brien, DDS NPI: 1639249568 Taxonomy: 122300000X (Dentist) Address: 122 MAIN ST, Mendenhall, MS, 39114
Verify this record
Cross-check NPI 1639249568 against the authoritative CMS record: view Dr. Glenn A Brien Sr. on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.