CLIA lab

CLIA 21D0687437: Calvert County Health Department

Prince Frederick, MD. Certificate and address details from the CMS Provider of Services file for clinical laboratories.

CLIA number 21D0687437 belongs to Calvert County Health Department in Prince Frederick, MD.

Certificate for Provider-Performed Microscopy Procedures, effective August 9, 2025, expires August 8, 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
August 9, 2025
Certificate expiration
August 8, 2027
Status in the CMS file
Active (termination code 00)
Original participation date
February 22, 1994
Facility type
Other
Ownership (control type)
Government, county
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
21D0687437
Lab name
Calvert County Health Department
Address
975 Solomons Island Road North, Prince Frederick, MD 20678
Phone
(410) 535-5400
Fax
(410) 535-1955

Annual test volume the lab reported

Waived tests
5,000
Provider-performed microscopy tests
600
Total
5,600

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

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Related

Questions

What is the CLIA number for Calvert County Health Department in Prince Frederick?

21D0687437, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does Calvert County Health Department hold?

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

When does CLIA 21D0687437 expire?

The CMS file lists August 8, 2027 as the certificate expiration date; the certificate took effect August 9, 2025.

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