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Mass General Waltham, Blood Draw Lab

The Mass General Hospital Blood Draw Lab - Waltham is open to Mass General Brigham patients with an open laboratory order from their Mass General Brigham provider. No appointment is necessary, walk-in appointments are available. Walk-in appointments are welcome Monday through Friday from 6:30 am to 5:15 pm. The blood draw lab is closed on holidays. Parents or guardians must accompany children.

contact information

52 Second Avenue
Waltham, MA 02451

google map


  • MondayMon
    6:30 a.m.–5:15 p.m.
  • TuesdayTue
    6:30 a.m.–5:15 p.m.
  • WednesdayWed
    6:30 a.m.–5:15 p.m.
  • ThursdayThu
    6:30 a.m.–5:15 p.m.
  • FridayFri
    6:30 a.m.–5:15 p.m.
  • SaturdaySat
  • SundaySun

location details