CLIA lab
CLIA 05D0947558: John Williams DO
Willits, CA. Certificate and address details from the CMS Provider of Services file for clinical laboratories.
CLIA number 05D0947558 belongs to John Williams DO in Willits, CA.
Certificate of Waiver, effective June 20, 2026, expires June 19, 2028.
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 Waiver
- Certificate effective
- June 20, 2026
- Certificate expiration
- June 19, 2028
- Status in the CMS file
- Active (termination code 00)
- Original participation date
- June 18, 1998
- Facility type
- Other practitioner
- Ownership (control type)
- Proprietary
- Lab classification
- CLIA laboratory
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
Lab and contact
- CLIA number
- 05D0947558
- Lab name
- John Williams DO
- Address
- 1772 South Main Street, Willits, CA 95490
- Phone
- (707) 459-5585
- Fax
- (707) 459-3548
Annual test volume the lab reported
- Waived tests
- 2,600
Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.
Other labs in Willits, CA
- Adventist Health Howard MemorialCertificate of Accreditation, Hospital05D0682844
- Ahhm Dawsons Center- Specialty ClinicCertificate of Waiver, Other05D2335944
- Baechtel Creek Medical ClinicCertificate for Provider-Performed Microscopy Procedures, Physician office05D0612624
- Kimberly Faucher, MDCertificate of Waiver, Physician office05D1098501
- Northbrook Healthcare CenterCertificate of Waiver, Skilled nursing or nursing facility05D0612626
- Safeway Pharmacy #0965Certificate of Waiver, Pharmacy05D2268618
- Willits Hospital IncCertificate of Waiver, Rural health clinic05D2094607
Related
Questions
What is the CLIA number for John Williams DO in Willits?
05D0947558, per the CMS Provider of Services file posted October 16, 2026.
What CLIA certificate does John Williams DO hold?
A Certificate of Waiver, according to the CMS file.
When does CLIA 05D0947558 expire?
The CMS file lists June 19, 2028 as the certificate expiration date; the certificate took effect June 20, 2026.