Blumenstock paid $730,000 for the property in Dec. 2002. The home was built in 1920.
Dr. Vittorio is a cardiologist who has been affiliated with the New York Hospital Medical Center and Montefiore Medical Center in the Bronx.
He earned his M.D. from the University of Pennsylvania School of Medicine.
Ms. Vittorio is an assistant professor of literacy and the graduate program coordinator at Lehman College of The City University of New York in the Bronx.
According to BlockShopper.com, there have been 337 home sales in Riverdale/North Riverdale/Fieldston during the past 12 months, with median sales price of $300,000.
Address: 5817 Liebig Avenue
Buyer(s): Vittorio, Timothy J, Vittorio and Limor Pinhasi
Seller(s): Blumenstock and Mella
Sale date: Sep. 9, 2009