For Michael J. Maricic, MD, the heat is always on—and not just from the scalding temperatures of the ever-present Tucson sun. Strolling through the lobby of his bone clinic, the same sign awaits him every morning: “Our mission is to provide state-of-the-art diagnosis and therapy of rheumatic disorders, combined with compassionate care.” Compassion is a primary adjective in that sentence and in his mind, and Dr. Maricic hopes this commitment will make him and his partners a top practice in a very busy market. After all, Arizona is a place where people retire—often taking their rheumatism with them.