"He is conscious and surrounded by family and friends, nothing is imminent and we are taking it day by day," Geffen said.
The news comes after the Cassidy revealed in February that he has dementia.
The "Partridge Family" star, has been in the hospital for three days and is in need of a liver transplant and has kidney failure, reported Page Six.
After appearing as Keith Partridge on the hit series "The Partridge Family" from 1970 to 1974, Cassidy went on to produce several successful albums and appear on TV shows including "David Cassidy Man Undercover." He also made guest appearances on shows including "Fantasy Island," "The Love Boat" and "Tales of the Unexpected."