Quest Diagnostics LLC
Quest Diagnostics LLC is a healthcare organization registered as Clinical Medical Laboratory in New Haven, CT, holding Type 2 (organization) NPI 1144423567 since 2007. The authorized official on file is Charles Bowles, Vice President.
✓ Active NPI ✓ Valid NPI checksum Organization subpart
| NPI | 1144423567 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Quest Diagnostics LLC |
| Parent organization | Quest Diagnostics Incorporated |
| Practice address | 2 CHURCH ST, STE 115, New Haven, CT, 06519 |
| Phone | 2039491260 |
| Enumeration date | 2007-06-06 |
| Last updated in NPPES | 2018-12-04 |
Authorized official
| Name | Charles Bowles |
|---|---|
| Title | Vice President |
| Phone | 6104544122 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 291U00000X | Clinical Medical Laboratory | Primary | 07D0098262 | CT |
Copy-ready billing details
Provider: Quest Diagnostics LLC NPI: 1144423567 Taxonomy: 291U00000X (Clinical Medical Laboratory) Address: 2 CHURCH ST, STE 115, New Haven, CT, 06519
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1699729475 | Dorothea Smith | Individual | Women's Health Nurse Practitioner | New Haven, CT |
Verify this record
Cross-check NPI 1144423567 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
Who is the authorized official for Quest Diagnostics LLC?
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Source: CMS NPPES (public data). Snapshot 2026-07-09. Provider record last updated 2018-12-04.