MELVILLE, N.Y.--(BUSINESS WIRE)--Allion Healthcare, Inc. (NASDAQ: ALLI), today announced that it will release its financial results for the fourth quarter ended December 31, 2008, after the close of U.S. financial markets on Wednesday, March 4, 2009. An accompanying conference call to discuss the results will be held at 5:00 p.m. Eastern Time on Wednesday, March 4, 2009.