Internal medicine is the medical specialty that is dedicated to the diagnosis and medical treatment of adults. That seems like a broad definition. The sub-specialties in this category of medicine are: allergy, cardiology, hematology, gastroenterology, nephrology, oncology, pulmonology, rheumatology, immunology, and more. The question then becomes: What doesn’t internal medicine cover? It seems like it’s all on the list. Here’s where there’s a difference: Internal medicine doctors treat adults, specializing in the prevention, diagnosis, and managing of chronic diseases and conditions, they diagnose complex disorders only in adults. A general medicine doctor will treat patients of all ages, and with any disease, an internist will only treat adults. If you’re an internal medicine doctor that needs their medical billing to be handled with the same dedication and care that you show to your patients, our Gables Medical Billing team is here to handle all of your claim submissions, follow-ups, and appeals, all the way to posting your payment.