Laboratory Support Services

  • Provides walk-in phlebotomy, specimen collection and EKG services in the Wang Ambulatory Care Center
  • Central Phlebotomy (aka Blood Lab) and specimen collection
  • Specimen transport
  • To sign up for Patient Gateway and have access to your records, please click here

Laboratory Support Services Leadership

Loading samples into a centrifuge

George Souza
Senior Technical Director,
Laboratory Support Services

Jennifer Silverio
Phlebotomy Supervisor,
Laboratory Support Services


Mass General Boston Phlebotomy. WANG 221, phone: 617-726-3215 option 1

Mass General Waltham Phlebotomy, MGW room 1120, phone: 781-487-6280

During the current Coronavirus emergency, our outpatient phlebotomy units are operating at a reduced capacity and shortened hours.

 If you are experiencing any symptoms as follows contact your provider and don't go to the outpatient phlebotomy facilities. 

  1. Temperature of 100 or greater
  2. Sore throat
  3. Chest pain
  4. Nasal congestion/runny nose
  5. Have been exposed to anyone who exhibits symptoms, suspected of, waiting for COVID -19 results or tested positive for COVID-19 contact your provider and do not go to the phlebotomy center. 
  6. New onset cough
  7. Been otherwise ill.

Also we suggest you contact your provider to see if it's necessary to come in at this time. We are not processing speciality testing such as outside research laboratory specimen.

Hours of Operation

Our new hours are:

Boston WACC221 (Specimen Collection Center aka Blood Lab)

  • Mon 6:00-3:45
  • Tue 6:00-3;45
  • Wed 6:00-3:45
  • Thur 6:00-3:45
  • Fri 6:00-3:45

Weekends located at WACC 516 (NEW LOCATION)

  • Sat  8:30-4:00
  • Sun 8:30-4:00

Waltham 1120 (Waltham Specimen Collection Center aka Waltham Blood Lab)

  • Mon 6:30-3:45
  • Tue 6:30-3:45
  • Wed 6:30-3:45
  • Thur 6:30-3:45
  • Fri 6:30-3:45

Waltham Pediatrics Phlebotomy

Call for hours: 781-487-6280