OrganizationActive
Unilab Corporation
NPI 1093869455 · Clinical Medical Laboratory · Walnut Creek, CA
Provider details
- NPI number
- 1093869455
- 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
- 05D0643815 (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
108 La Casa Via
Ste 105
Walnut Creek, CA 94598-3013
Phone: (925) 930-6897
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
- 2007-01-23
- Last updated
- 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.