When a doctor refers a patient to another healthcare provider or specialist, it can lead to revenue generation for the referred party. For example, if a primary care physician refers a patient to a cardiologist for further evaluation of a heart condition, the cardiologist would generate revenue from providing their services to the patient.

The term "untapped" suggests that there may be potential revenue that is not being fully utilized or realized. It implies that healthcare providers could be missing out on opportunities to generate more revenue through effective doctor/patient referrals.

To tap into this untapped revenue potential, healthcare providers can focus on improving their referral systems and processes. This may involve building stronger relationships with referring doctors, implementing efficient referral management systems, improving communication channels, and providing quality care and service that encourages doctors to refer their patients.

It's worth noting that the specific revenue potential from doctor/patient referrals can vary depending on factors such as the type of healthcare practice, patient volume, and the types of services being referred.