The Mass General Pathology Service is inspected every two years, certified by the Department of Public Health, and accredited by the Joint Commission. In addition, the Department also participates in several specialized external reviews including:

  • American Association of Blood Banks (AABB)
  • American Society of Histocompatibility and Immunogenetics (ASHI)
  • Food and Drug Administration (FDA)

CLIA Certificates and Accreditations

An image of the letter from the Joint Commission indicating that MGH labs are currently in their survey window, serving as proof that they are TJC accreditedNote: The MGH Laboratories were surveyed and accredited on May 17, 2025. This TJC letter (PDF) is proof of accreditation and provides accreditation details.

MGH Main Campus

Mass General Department of Pathology: 22D0-650-226 (PDF)

Joint Commission Accreditation: 5513 (PDF)

Other MGH Locations

Mass General Pathology Center for Integrated Diagnostics: Inquiries can be emailed to Julie Batten

Laboratory for Molecular Medicine: 22D1-005-307 (PDF)

Mass General Special Function Group I Labs: 22D0-691-569 (PDF)

Mass General Special Function Labs Group II: 22D0-928-000 (PDF)

Mass General DNA Diagnostic Lab: CLOSED - Inquiries can be emailed to Jin Yun Helen Chen

Mass General Brigham Healthcare Center (Waltham)22D2-096-202 (PDF)

Joint Commission Accreditation: 22D2-096-202 (PDF)

Support Resources and Services

Pathology Laboratory Handbook

Laboratory Support Services

CLIA Laboratory Lookup