OrganizationActive
Unilab Corporation
NPI 1629116124 · Clinical Medical Laboratory · Merced, CA
Unilab Corporation is a Clinical Medical Laboratory organization in Merced, CA (NPI 1629116124).
Provider details
- NPI number
- 1629116124
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Parent organization
- Unilab Corporation Dba Quest Diagnostics
- Organization subpart
- Yes
- Authorized official
- Charles Bowles, Vice President(610) 454-6000
- License
- 05D0644027 (CA)
Specialties & taxonomies
Laboratories
Laboratories
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
857 W Childs Ave
Merced, CA 95341-6862
Phone: (209) 725-0658
Street-level locationGet directions
Mailing address
1201 S Collegeville Rd
Collegeville, PA 19426-2998
Other names (DBA / former)
- Doing business as
- Quest Diagnostics
- Doing business as
- Quest Diagnostics
Registry dates
- Enumerated
- 2007-02-05
- Last updated
- 2018-12-11
Frequently asked questions
- What is Unilab Corporation's NPI number?
- Unilab Corporation's National Provider Identifier (NPI) is 1629116124, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Unilab Corporation?
- Unilab Corporation is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Unilab Corporation located?
- Unilab Corporation's practice location on file with NPPES is 857 W Childs Ave, Merced, CA 95341-6862.
- What is Unilab Corporation's phone number?
- The practice phone number listed in the NPPES registry for Unilab Corporation is (209) 725-0658.
- Who is the authorized official for Unilab Corporation?
- The authorized official listed on Unilab Corporation'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 Unilab Corporation's NPI active?
- Yes — Unilab Corporation's NPI (1629116124) is active in the NPPES registry as of the last update on 2018-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.