LOCALLY BASED, NATIONALLY RECOGNIZED.
January 2026
Dear Valued Client:
We are pleased to announce that Corewell Health and Quest Diagnostics, a leading national laboratory company, have completed the formation of their laboratory services joint venture (JV) named Diagnostic Lab of Michigan, LLC.
This multi-faceted collaboration will broaden access to innovative, high-value laboratory services for you and other providers in Michigan. Excitingly, work has begun on a new state-of-the-art laboratory in Southfield, Michigan, to service the JV. This laboratory will not be operational until the beginning of 2027. We will provide updates on the laboratory start date as work progresses.
Corewell Health and Quest share the goal to broaden access to quality, accessible and affordable laboratory services for providers and patients in Michigan. We expect Diagnostic Lab of Michigan to concentrate the shared resources and expertise of Corewell Health and Quest on improving access to diagnostic innovation in Michigan.
Over time, Diagnostic Lab of Michigan will provide several new benefits, including:
- Greater convenience for patients, as Corewell Health and Quest combine their patient service networks to reach more patients in Michigan.
- Michigan-grown diagnostic innovation, including through automation in the new laboratory
- Broad health plan access to support patient affordability
Your current Corewell Health Lab Account Representative will continue to support you as part of the new joint venture laboratory. If you have questions, please contact Matt Boring, Sales Director, 248-345-5604.
We appreciate your business and look forward to the continuation of high-quality laboratory services for our patients, providers and communities.
Sincerely,
Sarah Britton
Vice President, Laboratory Services
Corewell Health
Quest Diagnostics Service Updates
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