What practice does Dr. Sian Spurney work with? Dr. Sian Spurney works with Jeffrey B. Sherman, MD . Where is Dr. Sian Spurney's office located? Dr. Sian Spurney's office is located at 2021 K Street NW, Washington, DC 20006 . Which board certifications does Dr. Sian Spurney have? Dr. Sian Spurney is certified by American Board of Internal Medicine..