Licensing authority
Who actually issues an EMS licence in Maryland?
Maryland Institute for Emergency Medical Services Systems (MIEMSS)
An independent state institute rather than a division of a health department, which is why it publishes on miemss.org rather than a maryland.gov host. It is still the body that certifies, so it counts as the state EMS office.
Source quotation
From basic to advanced life support services, MIEMSS oversees certification and licensure for all of the state's 20,000 EMS clinicians.
miemss.org · State EMS office