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Business Hours



The MGH CCIB DNA Core facility is open Monday through Friday,
8:00 am - 5:30 pm

During normal business hours, core staff accepts samples, delivers results, and is available for consultations. Results are also delivered during extended business hours and weekend hours as appropriate.

Our Customer Phone Service (617-726-5982) is available Monday through Friday,
7:00 am - 2:00 pm



The MGH CCIB DNA Core Facility is closed on the following Massachusetts legal holidays observed by MGH:

New Year's Day (Observed January 1, 2024)

Martin Luther King's Birthday (January 15, 2024)

President's Day (February 19, 2024)

Memorial Day (May 27, 2024)

Juneteenth (June 19, 2024)

Independence Day (July 4, 2024)

Labor Day (September 2, 2024)

Indigenous People's Day (October 14, 2024)

Thanksgiving Day (November 28, 2024)

Christmas Day (Observed December 25, 2024)

New Year's Day (Observed January 1, 2025)

*Please note: Our Courier Service does not operate on weekends and on holidays.