1 Replacing an oil-fired furnace in a central heating system starts typically costs $2,000-$5,000 for a basic installation, but can reach $6,000-$10,000 or more for complex installations.
Doctor Directory. A physiatrist practices in the field of physiatry - also called physical medicine and rehabilitation - which is a branch of medicine that specializes in diagnosis, treatment, and management of disease primarily using physical means, such as physical therapy and medications.
Functional medicine is a form of alternative medicine which proponents say focuses on interactions between the environment and the gastrointestinal, endocrine, and immune systems.unctional medicine encompasses a number of unproven and disproven methods and treatments, and has been criticized for being pseudoscientific.