United Kingdom

Information for Patients 

All permanent residents of the United Kingdom are provided with free healthcare services by the National Health Service paid from general taxation. Despite the domination of public healthcare, there are additional private healthcare centers that provide a great variety of complementary & alternative paid treatments. Medical insurance that is a part of company benefits can be used to pay for private healthcare services. (https://en.wikipedia.org/wiki/Healthcare_in_England)

Information for Health Care Professionals

A doctor must hold a license to practice with the GMC and be registered to be able to work in the UK. Doctors can have provisional or full registration. 
There are different types of registration that doctors can hold with the General Medical Council (GMC). They are provisional & full registration. International medical graduates need to meet the standards set by the GMC to be able to register as a doctor in the UK. (https://www.bma.org.uk/about-us/patient-information/doctor-registration)
Language of instruction for most medical related courses is English.

Information for Travelers

Surgery and Radiology are the most popular fields of medicine in the UK. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2805648/)
Due to shortage of GPs, UK may be in need of overseas GPs. (https://www.telegraph.co.uk/news/2018/08/09/nhs-needs-thousands-overseas-doctors-plug-gp-shortage/)
Most of the medical tourism in the UK is mostly attracted to London where there are private healthcare facilities run by NHS hospital trusts. (https://en.wikipedia.org/wiki/Medical_tourism#United_Kingdom)
The CDC and WHO recommend the following vaccinations for the United Kingdom: hepatitis A, hepatitis B & rabies. (https://www.passporthealthusa.com/destination-advice/united-kingdom/)
Common language spoken in hospitals is English but translators in Arabic, Bengali, Gujarati, Lithuanian, Nepalese, Panjabi, Polish, Portuguese, Turkish and Urdu are available. (https://www.express.co.uk/news/uk/756977/NHS-spends-100-million-on-TRANSLATORS-in-128-languages)

Ministry of health website: https://www.gov.uk/government/organisations/department-of-health-and-social-care%20