i'm not sure of the exact number, but i think there are a couple general wards months, and then one each of heme-onc, ID, renal, cards (CCU), and maybe geriatrics. there used to be a gi service, but this year they changed those patients to general wards care with gi consults for extra help.
the subspecialty services are phenomenal, with dynamic attendings who are focused on teaching in their specialty area. these services are great learning environments, and are perhaps better for patient care than the general wards.
i think there are few programs in the country that have their wards services set up like this; anyone else know the others? i think maybe NEMC and U.Michigan.