Jason Rosenbaum | St. Louis Public Radio

St. Louis-based Express Scripts, the largest pharmacy benefits management company in the U.S., said Wednesday that George Paz will retire as its CEO in May.

Tim Wentworth, who was named president of Express Scripts in February 2014, will replace Paz as CEO. Paz will remain chairman of the company.

Paz, 60, has been CEO for 11 years and oversaw its $29.1 billion acquisition of former competitor Medco in April 2012. Wentworth, 55, was the CEO of Medco's specialty pharmacy business before the merger.

(Rachel Lippmann/St. Louis Public Radio)

Updated at 4:26 p.m. to correct name of Jennifer Mallon's association. It is the National Community Pharmacists Association, not the National Association of Community Pharmacies.

Federal regulators have approved the $29.1 billion merger between pharmacy benefit managers Express Scripts and Medco.


Lambert Concourse reopens today

City officials are celebrating the reopening of the C Concourse at Lambert St. Louis International Airport today.

The concourse has been closed since April 22 of last year when a tornado hit causing significant damage.

The concourse is new and improved according to director Rhonda Hamm-Niebruegge with brighter ceilings, new lighting and new restrooms among the improvements. Hamm-Niebruegge recalls the evening the tornado hit.

You probably haven't heard of either Express Scripts or Medco Health Services, but their plans to merge in a $29 billion deal, announced last month, may have an impact on your pocketbook.

(Rachel Lippmann/St. Louis Public Radio)

Two of the nation's largest pharmacy benefits management companies could become one in the first six months of next year.