Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Western Laboratories

Organization Anatomic Pathology & Clinical Pathology Physician · NPI 1871555979

Western Laboratories is an Anatomic Pathology & Clinical Pathology Physician in Hayward, California. Registered with an NPI since 2006.

In the registry since
2006

Practice location Address checks out

27200 Calaroga Ave
Hayward, CA 94545-4339
Phone: (510) 264-4035
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X

Record details

NPI number1871555979
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Elizabeth Treynor — Managing Partner · (510) 264-4035
Other names Western Laboratory Medical Group
NPI enumeratedApril 4, 2006
Last updated in NPPESApril 12, 2017
Mailing address5700 Southwyck Blvd, Toledo, OH 43614-1509