内科

1. Origins, structure, and basic meaning

• Structure: 内科 (ないか) is internal medicine or a clinic treating internal disease nonsurgically. It appears as a care provider and hospital department.
• Basic usage: Persistent fever leads to a nearby internal-medicine visit; its reception desk is on a hospital's first floor.

2. Common pitfalls and similar expressions

• Clinical service visited and department within a hospital
  • 内科を受診する treats the specialty as provider; 内科の受付 links department and desk. It does not mean one individual doctor.