Healthcare revenue cycle management firm Passport Health Communications, Inc. has named Scott MacKenzie, previously with McKesson Corporation, to succeed Jim Lackey as CEO. Lackey will remain chairman of the board of directors. MacKenzie since 2005 was president of RelayHealth Pharmacy Solutions, now part of McKesson. Prior to joining McKesson, MacKenzie spent six years in various executive capacities with Cerner, most recently as vice president and general manager.