Can a doctor charge interest and a fee on a medical bill?

Yes, a doctor can charge interest and fees on a medical bill, but this practice must comply with applicable laws and regulations. Many healthcare providers include terms for payment plans or late fees in their billing policies, which should be clearly communicated to patients. It's important for patients to review their agreements and understand any potential charges before incurring debt. Additionally, regulations regarding interest rates and fees may vary by state or country.