Thanks for tagging me,
@Pipp, and welcome to the forum,
@cara.lloyd. I hope I might be able to help a bit with information.
If you move to Germany for work, you have to sign up for health insurance. Your employer will usually do this for you, but may ask you what type of insurance you would like to have (the basic choice is between public and private, but within each group also different carriers). The cost of insurance is for public insurance carriers around 13% and 14% of gross income and is shared between employer and employee. Once you are insured, all health care is basically free (does not include elective procedures or consultations), however, there is usually a prescription fee of somewhere between 2 to 5 Euros for each prescription. For private insurance, you will be billed privately, however (as is probably true in other countries, too), you will be reimbursed by your insurance.
Let me know if I can answer further questions for you.