CLIA lab

CLIA 05D2019589: Muir OB GYN

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

CLIA number 05D2019589 belongs to Muir OB GYN in Brentwood, CA.

Certificate for Provider-Performed Microscopy Procedures, effective February 2, 2025, expires February 1, 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 for Provider-Performed Microscopy Procedures
Certificate effective
February 2, 2025
Certificate expiration
February 1, 2027
Status in the CMS file
Active (termination code 00)
Original participation date
February 2, 2011
Facility type
Physician office
Ownership (control type)
Proprietary
Lab classification
CLIA laboratory
Directly affiliated labs
1

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

Lab and contact

CLIA number
05D2019589
Lab name
Muir OB GYN
Additional name
A Division of Bass Medical Group
Address
350 John Muir Pkwy Ste 205, Brentwood, CA 94513
Phone
(925) 933-4747
Fax
(925) 516-4779

Annual test volume the lab reported

Waived tests
1,300
Provider-performed microscopy tests
300
Total
1,600

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

Affiliated CLIA numbers

Other labs in Brentwood, CA

Related

Questions

What is the CLIA number for Muir OB GYN in Brentwood?

05D2019589, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does Muir OB GYN hold?

A Certificate for Provider-Performed Microscopy Procedures, according to the CMS file.

When does CLIA 05D2019589 expire?

The CMS file lists February 1, 2027 as the certificate expiration date; the certificate took effect February 2, 2025.

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