SAN FRANCISCO — Kathy McElligott has been appointed executive vice president and chief information officer (CIO) and chief technology officer (CTO) at McKesson Corp.

She comes to McKesson from Emerson, where she served as CIO since 2010 and managed Emerson’s information technology strategy and information security for its global ­operations.

McElligott succeeds Randy Spratt, who announced his planned retirement earlier this year. Spratt is retiring after a distinguished 29-year career with McKesson.

As McKesson’s CIO, McElligott is responsible for the enterprise business technology strategy, technology governance across the corporation, IT security and risk management, infrastructure operations and service delivery to all McKesson businesses. As CTO, McElligott will guide the overall technology direction for the company’s health care technology products and provide support and guidance for application development processes ­companywide.

“We are delighted to welcome Kathy to our senior leadership team,” commented John Hammergren, chairman and chief executive officer of McKesson. “As a respected industry leader, her track record in strategic global technology and driving exceptional customer experience will help McKesson continue to deliver greater value to our customers and shareholders.”

McElligott was hired at Emerson in 2000 as vice president of information technology for Emerson Power Transmission. In 2003 she was promoted to vice president of information technology for Emerson Industrial Automation, a title she held until her promotion to CIO.

Before joining Emerson, McElligott spent 22 years with General Electric, holding multiple information systems leadership roles, ultimately becoming CIO of supply chain for GE Aircraft Engines.