1990

CVS acquires 500 stores from People’s Drug, which establishes the company in new mid-Atlantic markets including Washington, D.C., Pennsylvania, Maryland and Virginia.

1991

Caremark purchases Prescription Health Services (PHS).

1992

Caremark spins off from Baxter. The Caremark formulary is developed and clinical intervention programs are introduced.

1994

CVS launches PharmaCare, a pharmacy benefit management company providing a wide range of services to employers and insurers.

Tom Ryan is named President and CEO of CVS/pharmacy. Ryan began his career with CVS/pharmacy in 1974 as a pharmacy intern.

1995

Caremark launches CarePatterns® disease management programs.

1996

Following the restructuring of Melville Corporation, CVS Corporation becomes a standalone company trading on the New York Stock Exchange under the CVS ticker. Stanley Goldstein is the company's first chairman.

Caremark enters the multiple sclerosis marketplace.

1997

CVS completes its acquisition of more than 2,500 stores from Revco — the largest acquisition in the history of the U.S. retail pharmacy industry. The acquisition of Revco gives CVS key drugstore locations primarily in the Midwest and Southeast.

Caremark merges the prescription benefit management business and the biotech business.

1998

CVS acquires 200 stores from Arbor Drugs of Michigan to bring its store total to 4,100 across 24 states.

Caremark defines pharmaceutical services as its core operating unit and establishes a national pharmacy and therapeutics committee.

1999

Caremark launches online prescription refills.

Tom Ryan is named chairman of CVS Corporation, succeeding company co-founder Stanley Goldstein.

CVS announces plans to enter Florida, with stores initially planned for the Tampa market.

CVS/pharmacy launches CVS.com, the first fully integrated online pharmacy in the U.S.