And so Collins created Become My Hero, which helps patients find cord-blood donors, and Natasha's Place, which promotes awareness of how cord-blood donation can help people of mixed heritage, a group for whom bone-marrow matches are hard to find.
Yale officials and members of the Schwartz family had suggested that people could help Mandi through Collins' charities. At the time they had no idea of his tangled financial past -- dealings first disclosed by the New York Times four days ago.
The Times reported that some of the allegations were so serious, they were being investigated by the Secret Service and Internal Revenue Service. A Secret Service official in Kentucky confirmed to ABC News that Collins was the subject of a fraud investigation there.
Yale this week distanced itself from Collins, removing references to the doctor and scrubbing any mention of his charities from stories on its Web site chronicling the fight to help Mandi Schwartz.
Members of Mandi's family said they received no money from Collins' charities. For them, this has been an unwanted distraction. They are focused on Mandi. The 22-year-old traveled to Seattle last week in preparation for a cord-blood transplant, which is now scheduled for Aug. 26.