Seddon Johanna M MD is located at 221 Longwood Ave, Boston, MA. This location is in the Fenway - Kenmore - Audubon Circle - Longwood neighborhood. This business specializes in Doctors & Clinics. Seddon Johanna M MD is open Clinic Wed, 5pm - 8pm; Admin Mon - Thu, 9am - 5pm; Fri - Sun, closed and accepts American Express, Cash, Mastercard and Visa.