CLIA lab

CLIA 21D0960745: Marsha Y Blakeslee DO LLC

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

CLIA number 21D0960745 belongs to Marsha Y Blakeslee DO LLC in Severna Park, MD.

Certificate for Provider-Performed Microscopy Procedures, effective May 19, 2025, expires May 18, 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
May 19, 2025
Certificate expiration
May 18, 2027
Status in the CMS file
Active (termination code 00)
Original participation date
May 19, 1999
Facility type
Physician office
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
21D0960745
Lab name
Marsha Y Blakeslee DO LLC
Address
479 Jumpers Hole Road Suite 304A, Severna Park, MD 21146
Phone
(410) 544-0053
Fax
(410) 544-7830

Annual test volume the lab reported

Waived tests
100
Provider-performed microscopy tests
10
Total
110

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 Marsha Y Blakeslee DO LLC in Severna Park?

21D0960745, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does Marsha Y Blakeslee DO LLC hold?

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

When does CLIA 21D0960745 expire?

The CMS file lists May 18, 2027 as the certificate expiration date; the certificate took effect May 19, 2025.

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