Final answer:
The main screen in Practice Fusion after login is known as the Dashboard, which is the central hub for managing tasks and patient information within the EHR platform.
Step-by-step explanation:
The main screen that opens upon login in Practice Fusion is called the Dashboard. Practice Fusion is an electronic health record (EHR) platform commonly used in medical practices. Once you log in, the Dashboard provides an overview of your daily tasks and patient management features. It is essentially the control center of the software, where healthcare professionals can easily navigate to different sections of the EHR such as patient records, scheduling, billing, and other essential functions.