Quest Diagnostics Clinical Laboratories Inc
NPI 1891981742 · Clinical Medical Laboratory · Horsham, PA
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Quest Diagnostics Clinical Laboratories Inc is a Clinical Medical Laboratory organization in Horsham, PA (NPI 1891981742).
Provider details
- NPI number
- 1891981742
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Parent organization
- Quest Diagnostics Incorporated
- Organization subpart
- Yes
- Authorized official
- Charles Bowles, Vice President(610) 454-6000
- License
- 39D0903558 (PA)
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
Mailing address
Registry dates
- Enumerated
- 2007-09-24
- Last updated
- 2022-07-15
- Certified
- 2022-07-15
Frequently asked questions
- What is Quest Diagnostics Clinical Laboratories Inc's NPI number?
- Quest Diagnostics Clinical Laboratories Inc's National Provider Identifier (NPI) is 1891981742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Quest Diagnostics Clinical Laboratories Inc?
- Quest Diagnostics Clinical Laboratories Inc is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Quest Diagnostics Clinical Laboratories Inc located?
- Quest Diagnostics Clinical Laboratories Inc's practice location on file with NPPES is 800 Business Center Dr Fl 2, Horsham, PA 19044-3431.
- What is Quest Diagnostics Clinical Laboratories Inc's phone number?
- The practice phone number listed in the NPPES registry for Quest Diagnostics Clinical Laboratories Inc is (800) 825-7320.
- Does Quest Diagnostics Clinical Laboratories Inc accept Medicare?
- Quest Diagnostics Clinical Laboratories Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Quest Diagnostics Clinical Laboratories Inc?
- The authorized official listed on Quest Diagnostics Clinical Laboratories Inc's NPPES record is Charles Bowles, Vice President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Quest Diagnostics Clinical Laboratories Inc's NPI active?
- Yes — Quest Diagnostics Clinical Laboratories Inc's NPI (1891981742) is active in the NPPES registry as of the last update on 2022-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.