Quest Diagnostics LLC
Quest Diagnostics LLC is a healthcare organization registered as Clinical Medical Laboratory in Hamden, CT, holding Type 2 (organization) NPI 1376745984 since 2007. The authorized official on file is Charles Bowles, Vice President.
✓ Active NPI ✓ Valid NPI checksum Organization subpart
| NPI | 1376745984 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Quest Diagnostics LLC |
| Parent organization | Quest Diagnostics Incorporated |
| Practice address | 3000 DIXWELL AVE, Hamden, CT, 06518 |
| Phone | 2039491260 |
| Enumeration date | 2007-06-05 |
| Last updated in NPPES | 2022-11-01 |
Authorized official
| Name | Charles Bowles |
|---|---|
| Title | Vice President |
| Phone | 6104546000 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 291U00000X | Clinical Medical Laboratory | Primary | 07D0098549 | CT |
Copy-ready billing details
Provider: Quest Diagnostics LLC NPI: 1376745984 Taxonomy: 291U00000X (Clinical Medical Laboratory) Address: 3000 DIXWELL AVE, Hamden, CT, 06518
Verify this record
Cross-check NPI 1376745984 against the authoritative CMS record: view Quest Diagnostics LLC 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
What is the NPI number for Quest Diagnostics LLC?
Who is the authorized official for Quest Diagnostics LLC?
Source: CMS NPPES (public data). Snapshot 2026-07-09. Provider record last updated 2022-11-01.