The "West Wing" star's son Emilio Estevez took to social media to reveal his father was in recovery after checking into a hospital in Los Angeles for the preventative procedure.
"My Pop!" he wrote alongside a photo of Martin giving the thumbs-up from his hospital bed.
"Successful proactive quadruple bypass surgery this week! A great Blessing indeed!"
Emilio offered fans an update on his father's progress by sharing a picture of the 75-year-old from behind after being discharged from the medical centre.