SAN FRANCISCO--(BUSINESS WIRE)--McKesson Corporation (NYSE:MCK) today announced that Mark Walchirk has been promoted to president, McKesson Specialty Care Solutions, effective immediately. Walchirk will report to Paul Julian, executive vice president and group president, McKesson Corporation. He will have overall responsibility for the McKesson Specialty Care Solutions business unit, which delivers services to pharmaceutical and biotech manufacturers and specialty providers, including oncologists to ensure specialty pharmaceutical products, coordinated reimbursement and clinical services are available to patients with complex diseases. Walchirk replaces Patrick Blake, who was promoted in June 2009 to executive vice president and group president, McKesson Corporation, with overall responsibility for McKesson’s Technology Solutions segment.