Paramedics responded to the call at 2:41 p.m. at the Kahala Hotel and Resort.
Limbaugh suffered from chest pains, sources said. Paramedics treated him and took him to Queen's Medical Center in serious condition.
He was seen golfing at Waialae Country Club earlier this week. The country club is next to the Kahala Hotel and Resort.
The radio show host had been in the islands during the holidays. Coincidentally, his visit comes at a time when two of the nation's most powerful Democrats, President Barack Obama and House Speaker Nancy Pelosi, are also staying in Hawaii.
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