CLIA lab
CLIA 22D2236133: Square Medical Group - River House
Waltham, MA. Certificate and address details from the CMS Provider of Services file for clinical laboratories.
CLIA number 22D2236133 belongs to Square Medical Group - River House in Waltham, MA.
Certificate of Waiver, effective September 15, 2025, expires September 14, 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 of Waiver
- Certificate effective
- September 15, 2025
- Certificate expiration
- September 14, 2027
- Status in the CMS file
- Active (termination code 00)
- Original participation date
- September 15, 2021
- Facility type
- Other
- 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
- 22D2236133
- Lab name
- Square Medical Group - River House
- Address
- 276 River Street, Waltham, MA 02453
- Phone
- (617) 916-5069
- Fax
- (617) 467-4073
Annual test volume the lab reported
- Waived tests
- 1,200
Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.
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- Bentley University Health CenterCertificate for Provider-Performed Microscopy Procedures, School or student health service22D0874600
- Beth Israel Deaconess Healthcare - WalthamCertificate of Waiver, Physician office22D2098393
- Beth Israel Lahey Health Primary Care WalthamCertificate of Waiver, Physician office22D2204995
- Boston Advanced Medicine IncCertificate of Compliance, Physician office22D1068503
- Boston Children's Hospital at WalthamCertificate of Accreditation, Hospital22D2056434
- Boston Eye Surgery and Laser Center - WestCertificate of Waiver, Ambulatory surgery center22D1057772
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Related
Questions
What is the CLIA number for Square Medical Group - River House in Waltham?
22D2236133, per the CMS Provider of Services file posted October 16, 2026.
What CLIA certificate does Square Medical Group - River House hold?
A Certificate of Waiver, according to the CMS file.
When does CLIA 22D2236133 expire?
The CMS file lists September 14, 2027 as the certificate expiration date; the certificate took effect September 15, 2025.