Pennsylvania native Steven Aussenberg, the newest family doctor at the Coastal Health Alliance, came West to work as a volunteer for the Marin Conservation Corps 15 years ago. One medical degree and a baby later, he was ready to make West Marin his home. “I’m not immune to the stresses of everyday life, and medical training is pretty challenging and demanding,” he said. “I really wanted, with my new family, to live in a place…