MedStar, the city’s ambulance provider, picked PAVLOV to help market its range of emergency and non-emergency services offerings, including its StarSaver membership program. MedStar serves more than 800,000 Tarrant County residents spread over 421 square miles. “MedStar provides essential, life-saving services in our city. We’re on a mission to make sure they succeed,” said Allen Wallach, PAVLOV CEO.