A nephrologist is a physician who studies, diagnoses and treats illness or disease related to the kidneys.
Necessary education to become a nephrologist includes a medical doctoral degree, completion of an Accreditation Council for Graduate Medical Education (ACGME) internal medicine residency program and at least two years of professional experience working with patients.
The American Board of Internal Medicine (ABIM) requires internal medicine certification to pursue certification in nephrology.
A two- to three-year fellowship in nephrology and an additional exam through the through the ABIM is required to be certified in the neophrology specialty.
Diagnosing and treating kidney-related illness or disease includes evaluating patients, performing kidney transplantation and administering dialysis treatments.
Indeed.com lists an average national salary of $146,000 per year for this occupation in January 2010.