• John Sheridan Jr. will join the management team of Cooper Health System (Camden, New Jersey) on July 1 as senior executive vice president. Sheridan has been a partner at Riker Danzig Scherer Hyland & Perretti since 1985, leading the law firm's government affairs department. Prior to becoming a partner at Riker, he served as commissioner of the New Jersey Department of Transportation.

• Jerome Benuck has joined CodeRyte (Bethesda, Maryland), a provider of medical coding technologies and Internet-based medical coding services, as leader of strategic account sales on the East Coast. Initially, he will play a business development role for the company, responsible for targeting large academic medical centers and integrated delivery networks.

• Paula Treutiger has been appointed vice president, corporate communications for Gambro (Stockholm, Sweden), replacing Karin Avasalu, who is on maternity leave. Treutiger previously was a financial analyst at Alfred Berg/ABN AMRO in Stockholm, heading the healthcare group and following Gambro and other medical products companies since 1998.

• Cheryl White Mason has been named vice president-litigation for HCA (Nashville, Tennessee). She previously served as chief of the civil liability management branch for the city of Los Angeles. HCA operates about 200 hospitals and 70 outpatient surgery centers in 24 states, England and Switzerland.

• Grant Carlson has been promoted from vice president, business development to president and chief operating officer of Nanobac Life Sciences (Tampa, Florida), effective immediately. He now has day-to-day operational responsibility for Nanobac's in vitro diagnostics, dietary supplement and drug discovery businesses. Prior to joining Nanobac, Carlson was vice president of marketing and business development at Agilix and previously held the same positions at Dianon Systems before its acquisition by LabCorp. Nanobac is focused on developing diagnostics for nanobacterial infection.