The letters after a doctor's name indicate the advanced degree program the doctor completed, according to About.com. The most common letters are M.D. for medical doctor and Ph.D. for doctor of philosophy.
Other post-nominal letters for doctors, according to About.com and Wikipedia, include D.D.S. for doctor of dental surgery, D.M.D. for doctor of dental medicine, O.D. for doctor of optometry, Au.D. for doctor of audiology, D.P.M. for doctor of podiatric medicine, D.P.T. for doctor of physical therapy, D.N.P. for doctor of nursing practice, D.C. for doctor of chiropractic and PharmD for doctor of pharmacy. A doctor of veterinary medicine uses the initials D.V.M. after her name.Learn More
Math is crucial to becoming a doctor because doctors use math to determine the right dosage for a drug based on a patient's body type and height. Physicians use mathematical models to conduct medical research. Doctors read medical journal studies containing statistical data to stay updated on new findings that can improve their practice and benefit patients.Full Answer >
A doctor who addresses disorders of the bones and joints is called an orthopedist. An orthopedist corrects deformities or impairments of function in the skeletal system.Full Answer >
A physical therapist is considered a doctor. Physical therapy requires an advanced degree, and a bachelor's degree is a prerequisite for a physical therapy degree program. The degree is known as a doctor of physical therapy degree.Full Answer >
There is no specific name for a doctor that focuses only on knee problems, but an orthopedic doctor specializes in the needs of the musculoskeletal system. This system of the body includes the bones, ligaments and joints.Full Answer >