Final answer:
Physician's offices and hospitals share a similar customer base, as they both serve patients seeking healthcare services ranging from routine checkups to emergency care.
Step-by-step explanation:
The two departments that share a similar customer base in the healthcare setting are physician's offices and hospitals. Both these entities provide direct healthcare services to patients, and because of this, they work with a similar group: those seeking medical care. Physician's offices can range from general practitioners to specialists, and they often refer patients to hospitals for additional tests, procedures, or when a higher level of care such as inpatient treatment is required.
Similarly, hospitals serve outpatients through their emergency departments, clinics, or specialized practices, and also provide acute care for inpatients. Therefore, these two departments share a common customer base which consists of individuals seeking medical interventions, disease management, routine checkups, emergency care, and specialist consultations.