Horgan, who is originally from
County Kerry, attended
University College Dublin. She graduated with a
MB BCh in 1986 and trained as a specialist in
infectious diseases at
Washington University School of Medicine in
St. Louis, Missouri. She received an
MD in 1995 Horgan became a member of the
Royal College of Physicians of Ireland (RCPI) in 1988 and was awarded fellowship in 1997. She first became involved in the RCPI's administration in 1999 and was elected president of the college in 2016 for a three-year term beginning in October 2017. She is the first woman to serve as president of the college since its inception in 1654. In January 2021, she was appointed to
NPHET. ==References==