CLIA lab

CLIA 52D1041389: Three Oaks Health Services

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

CLIA number 52D1041389 belongs to Three Oaks Health Services in Marshfield, WI.

Certificate of Waiver, effective June 1, 2025, expires May 31, 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

Run it in Rivvi

Map your lab's test names to LOINC codes

Open in Rivvi

Free to start. Opens Rivvi, the AI workspace for healthcare teams.

Certificate

Certificate type
Certificate of Waiver
Certificate effective
June 1, 2025
Certificate expiration
May 31, 2027
Status in the CMS file
Active (termination code 00)
Original participation date
June 1, 2005
Facility type
Skilled nursing or nursing facility
Ownership (control type)
Other
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
52D1041389
Lab name
Three Oaks Health Services
Address
209 Wilderness View Dr, Marshfield, WI 54449
Phone
(715) 389-6000
Fax
(715) 389-6090

Annual test volume the lab reported

Waived tests
25,000

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

Care facility at this address

Other labs in Marshfield, WI

Related

Questions

What is the CLIA number for Three Oaks Health Services in Marshfield?

52D1041389, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does Three Oaks Health Services hold?

A Certificate of Waiver, according to the CMS file.

When does CLIA 52D1041389 expire?

The CMS file lists May 31, 2027 as the certificate expiration date; the certificate took effect June 1, 2025.

Try it on your own data today.

Free to start. Most teams are using it the same day.