Petaluma Valley Hospital is approximately 40 miles north of San Francisco just off the Highway 101 corridor in southern Sonoma County in the town of Petaluma. Our services include a 24 hour emergency Department, intensive/coronary care unit, family birth maternity center, surgery, laboratory, respiratory therapy, physical therapy and a full service imaging department, including radiology, CT scans, ultrasound, MRI scans, mammography and nuclear medicine.