| Abbreviation | Definition |
|---|---|
| MACP | Meningococcal A + C Polysaccharide vaccine |
| MACS | Maroondah Approach to Clinical Services |
| MAD | Medical Assessment of Donors |
| MAD | Medical Assistance Division |
| MAE | Moves All Extremities |
| MAGIC | metabolic assistance group intervention clinic |
| MAMC | Madigan Army Medical Center |
| MAP | Medical Assistance Program |
| MAPD | Medicare Advantage Prescription Drug plan |
| MAR | Medication Administration Records |
| MASH | Metropolitan Animal Specialty Hospital |
| MASH | Mobile Army Surgical Hospital |
| MASH | Municipal Academic Schools and Hospitals |
| MAST | Minimal Access Spinal Technologies |
| Matty | Maternity [U.K.] |
| MAU | Medical Assessment Unit |
| MAYO | Maniacial All Yaoi Organization |
| MB | Miracle Baby |
| MBBS | Bachelor of Medicine and Bachelor of Surgery |
| MBBS | Bachelor of Medicine/ Bachelor of Surgery |