Breadcrumb < Patient care Departments To ensure the highest level of care, our experienced doctors collaborate with an unrivalled network of more than 4,000 specialists at Mayo Clinic in the United States. Cardiology (heart health) Consult a highly experienced team of cardiologists in London and the U.S. that provides heart care tailored to you. Gastroenterology (digestive diseases) Consult with specialists who tailor care to your needs here in the UK while leveraging top-ranked expertise in the U.S.