That of course depends on a lot of factors such as the size of the group you join. The larger the group, the less call you will take since you will share call with the other physicians. Generally, the call is not bad from what I have been told. It's usually once a week and it's never overnight call. Most GI related disorders are not emergencies so you will not be in the hospital on the weekends rounding up on your patients to the same degree a cardiologist would.