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 involves understanding the origins, prevention, and treatment of complex, chronic disease. Hallmarks of a functional medicine approach include: 1  Patient-centered care.2  An integrative, science-based healthcare approach. 3  Integrating best medical practices.y shifting the traditional disease-centered focus of medical practice to a more patient-centered approach, functional medicine addresses the whole person, not just an isolated set of symptoms.