"Of those chains, CVS has really moved forward with the concept." Rite Aid now has 30 RediClinics in its stores since buying the company last year. CVS' chain drug rivals, Walgreens and Rite Aid, also have boosted their presence in the retail clinic arena. In 2013, Walgreens rebranded its Take Care Clinics as Healthcare Clinic at select Walgreens, and since then the drug chain expanded its clinic base to more than 400 locations in 19 states. Kalorama projects that Walgreens will have 525 clinics in its drug stores by 2019. Rite Aid became a bigger player in the retail clinic market in April 2014 with the acquisition of RediClinic, which at the time operated 30 clinics in H-E-B supermarkets in Houston, Austin and San Antonio, Texas. Before the deal, the drug chain had walk-in clinics in about a dozen locations, operated in tandem with area health provider organizations.