Rite Aid 3023 78th Ave SE, Mercer Island, WA98040 The Rite Aid store and pharmacy have been located in the center of the Mercer Island business district for more than 20…More years. The store offers personal care, household, nutrition and wellness, beauty and spa and food and drink products. It also carries greeting cards, toys, school and office supplies and seasonal decor and food items. Digital prints can be processed on a walk-up basis or if ordered online. Gifts created from digital prints, such as mugs and calendars, are also available. In addition to filling prescriptions, the pharmacy offers immunizations, flu shots, shingles vaccine and overseas travel shots. The Rite Aid Wellness Plus Card offers you a 10 percent discount on Rite Aid products.