OrganizationActive
Quest Diagnostics LLC
NPI 1376852558 · Clinical Medical Laboratory · Stonington, CT
Quest Diagnostics LLC is a Clinical Medical Laboratory organization in Stonington, CT (NPI 1376852558).
Provider details
- NPI number
- 1376852558
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Parent organization
- Quest Diagnostics Incorporated
- Organization subpart
- Yes
- Authorized official
- Gerald Cartier, Vp of Revenue Services(484) 676-7000
Specialties & taxonomies
Laboratories
Profile Score
Detailed profile(83/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
55 Wilcox Rd
Stonington, CT 06378-2612
Phone: (860) 572-8834
Street-level locationGet directions
Mailing address
1001 Adams Ave
Norristown, PA 19403-2429
Registry dates
- Enumerated
- 2010-10-05
- Last updated
- 2012-10-12
Frequently asked questions
- What is Quest Diagnostics LLC's NPI number?
- Quest Diagnostics LLC's National Provider Identifier (NPI) is 1376852558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Quest Diagnostics LLC?
- Quest Diagnostics LLC is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Quest Diagnostics LLC located?
- Quest Diagnostics LLC's practice location on file with NPPES is 55 Wilcox Rd, Stonington, CT 06378-2612.
- What is Quest Diagnostics LLC's phone number?
- The practice phone number listed in the NPPES registry for Quest Diagnostics LLC is (860) 572-8834.
- Who is the authorized official for Quest Diagnostics LLC?
- The authorized official listed on Quest Diagnostics LLC's NPPES record is Gerald Cartier, Vp of Revenue Services. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Quest Diagnostics LLC's NPI active?
- Yes — Quest Diagnostics LLC's NPI (1376852558) is active in the NPPES registry as of the last update on 2012-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.