Riverside County and San Bernardino County to the north form this metro area. Like many such metro areas in the Southwest, it extends far into uninhabited desert areas, in this case east through the Mojave Desert to the Nevada/Arizona border. Larger than nine U.S. states, it is often referred to as the Inland Empire.
I agree with tchrist that the word doctor in doctor appointment is a noun (attributive noun I believe), although the definition of an attributive noun is a noun used as an adjective, so maybe it's just semantics at some point.
Generally terms and conditions of appointment order describes that an employee should his time totally for the betterment of the organisation where he is employed. He can not by any stretch of imagination, can devote his time to other organisations. This is normally done to avoid leaking of organisational secrets and also to ensure total devotion to the employer. However, he can devote his leisure time on holidays his services for NGOs for purely for social service.