Sparks Like Stars by Nadia Hashimi

Kabul, 1978: The daughter of a prominent family, Sitara Zamani lives a privileged life in Afghanistan’s thriving cosmopolitan capital. The 1970s are a time of remarkable promise under the leadership of people like Sardar Daoud, Afghanistan’s progressive president, and Sitara’s beloved father, his right-hand man. But the ten-year-old Sitara’s world is shattered when communists stage a coup, assassinating the president and Sitara’s entire family. Only she survives. 
Smuggled out of the palace by a guard named Shair, Sitara finds her way to the home of a female American diplomat, who adopts her and raises her in America. In her new country, Sitara takes on a new name—Aryana Shepherd—and throws herself into her studies, eventually becoming a renowned surgeon. A survivor, Aryana has refused to look back, choosing instead to bury the trauma and devastating loss she endured.