CLIA lab

CLIA 20D2187377: Heidi M Larson, MD Family Medicine

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

CLIA number 20D2187377 belongs to Heidi M Larson, MD Family Medicine in Scarborough, ME.

Certificate of Waiver, effective July 1, 2026, expires June 30, 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
July 1, 2026
Certificate expiration
June 30, 2028
Status in the CMS file
Active (termination code 00)
Original participation date
July 1, 2020
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
20D2187377
Lab name
Heidi M Larson, MD Family Medicine
Address
23 Spring Street, Ste B, Scarborough, ME 04074
Phone
(207) 233-2502
Fax
(207) 233-2503

Annual test volume the lab reported

Waived tests
50

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

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Questions

What is the CLIA number for Heidi M Larson, MD Family Medicine in Scarborough?

20D2187377, per the CMS Provider of Services file posted October 16, 2026.

What CLIA certificate does Heidi M Larson, MD Family Medicine hold?

A Certificate of Waiver, according to the CMS file.

When does CLIA 20D2187377 expire?

The CMS file lists June 30, 2028 as the certificate expiration date; the certificate took effect July 1, 2026.

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