More walk-in options open, including at Meijer, as vaccine supply grows WOOD-TV 8 WALKER — Meijer says it is launching walk-in clinics for the COVID-19 vaccines at its pharmacies, though it warns availability of those shots is still limited. Each Meijer store will have at least 100 walk-up doses — either Pfizer or Moderna — available each week. The metro Grand Rapids-based retail giant said those doses will go on a first-come, first-served basis. It cited increased supply in allowing the change. “The ability to offer the vaccines on a walk-up basis at every Meijer store demonstrates we are getting closer to ensuring everyone has the ability to get vaccinated,” Meijer Vice President of Pharmacy Jason Beauch said in a Monday statement.