John Andrew Kalbaugh, and Anne Kalbaugh bought six-bedroom, five-bath home at 738 Charleston Circle in North Palm Beach from Dr. Rory Mortman and Sunghee Mortman for $1 million on Aug. 14, 2007.

The 4,120-square-foot house was built in 2001.

The Mortmans paid $660,000 for the property on March 2002.

Mr. Kalbaugh serves as the CEO at Mutual Service Corp.

Previously he served as the president and chairman of American General Securities, Inc.

Mr. Mortman is an endodontist. He also serves as a diplomat for the American Board of Endodontics.

He completed his D.D.S. and received his certificate in endodontics from the New York University College of Dentistry in New York City and his B.A. in chemistry from the State University of New York at Buffalo in Buffalo, N.Y.

There have been 172 sales in North Palm Beach thus far in 2008. The median sales price is at $235,000.

Address: 738 Charlestown Circle
Buyer(s): John Andrew Kalbaugh, Andrew Kalbaugh, and Anne Kalbaugh
Seller(s): Rory Mortman and Sunghee Mortman
Sale date: Aug. 14, 2007