Dr. Peter MacMahon
Radiology
Prof. Padraic MacMathuna
Gastroenterology
Mr. Karuppiah Mahalingam
Orthopaedics
Mr. Max Mahendran
Vascular Surgery
Dr. Michael Maher
Oncology (Radiation Oncology)
Prof. Niall Mahon
Cardiology
Dr. Paddy Mallon
Infectious Diseases
Dr. Ronan Margey
Cardiology
Dr. Brian Marsh
Anaesthesia
Dr. Josè Masegosa
Gastroenterology
Dr. Brendan McAdam
Cardiology
Dr. Sinead McArdle
Emergency Medicine
Dr. Michael McAuliffe
Dental, Oral Surgery
Prof. John McCaffrey
Oncology (Medical Oncology)
Dr. Hugh McCann
Cardiology
Dr. Conor McCarthy
Rheumatology
Prof. Geraldine McCarthy
Rheumatology
Prof. James McCarthy
Cardiothoracic Surgery
Dr. Conan McCaul
Anaesthesia
Prof. Damian McCormack
Orthopaedics