There are 312 physicians, 114 nurse practitioners, and 1 physician assistant currently certified with the state of Massachusetts to issue medical marijuana certifications to qualifying patients. MPAA has a comprehensive list of healthcare providers on our website who can certify patients for the medical marijuana program. The Cannabis Control Commission cannot release the complete list due to privacy protections in state law. Our site discloses clinicians and groups who publicly advertise their services. Please visit the "Access" tab of our website for our list of Massachusetts medical marijuana clinicians.