CLIA lab

CLIA 05D0985235: John Muir Health

Walnut Creek, CA. Certificate and address details from the CMS Provider of Services file for clinical laboratories.

CLIA number 05D0985235 belongs to John Muir Health in Walnut Creek, CA.

Certificate of Accreditation, effective September 18, 2025, expires September 17, 2027.

Active in the CMS Provider of Services file posted October 16, 2026.

Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page

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Certificate

Certificate type
Certificate of Accreditation
Certificate effective
September 18, 2025
Certificate expiration
September 17, 2027
Status in the CMS file
Active (termination code 00)
Original participation date
April 11, 2001
Facility type
Other
Ownership (control type)
Private
Lab classification
CLIA laboratory
Accrediting organizations
College of American Pathologists (CAP)
Directly affiliated labs
3

Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page

Lab and contact

CLIA number
05D0985235
Lab name
John Muir Health
Additional name
Concord Medical Center - Oncology Lab
Address
177 La Casa Via, Ste 370, Walnut Creek, CA 94598
Phone
(925) 692-5616
Fax
(925) 692-5717

Annual test volume the lab reported

Tests under accreditation
253,718

Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.

Affiliated CLIA numbers

Other labs in Walnut Creek, CA

Related

Questions

What is the CLIA number for John Muir Health in Walnut Creek?

05D0985235, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does John Muir Health hold?

A Certificate of Accreditation, according to the CMS file.

When does CLIA 05D0985235 expire?

The CMS file lists September 17, 2027 as the certificate expiration date; the certificate took effect September 18, 2025.

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