Internal Medicine

Formal training of physicians is divided into three phases: premedical education, medical school, and graduate medical education. In internal medicine, the requisite part of graduate medical education is a three-year residency program.

Following successful completion of residency training, the graduate may begin practice as a general internist or may choose to train further in one of the subspecialties of internal medicine. At the completion of residency training, the American Board of Internal Medicine (ABIM) offers a special test that certifies expertise in internal medicine. Although not required, passing this test is beneficial to an internal medicine career, and most graduates take this examination to become “board certified” in medicine. A similar examination is offered by ABIM following completion of a subspecialty fellowship.

Specialty training is called fellowship training, and usually adds two to three years of training beyond the residency training. Generally, applications for fellowship training are submitted during the second year of internal medicine residency training. The following is a list of subspecialties that require preliminary training in internal medicine:

  • Allergy and Immunology.
  • Cardiovascular Disease.
  • Endocrinology.
  • Diabetes and Metabolism.
  • Gastroenterology.
  • Hematology.
  • Infectious Disease.
  • Medical Oncology.
  • Nephrology.
  • Rheumatology and Pulmonary Disease.

Certificates of added qualifications recognize special expertise in areas of internal medicine. To receive a certificate of added qualification generally requires an additional two years of training after residency or fellowship.

These areas are:

  • Adolescent Medicine
  • Advanced Heart Failure and Transplant Cardiology
  • Interventional Cardiology
  • Clinical Cardiac Electrophysiology
  • Critical Care Medicine
  • Hospice and Palliative Medicine
  • Geriatric Medicine
  • Sports Medicine
  • Sleep Medicine
  • Transplant Hepatology
  • Women’s Health

Discuss options with your Medical School academic counselor.

For information about specific residency and subspecialty fellowship programs, contact the American College of Physicians-American Society of Internal Medicine (ACP-ASIM).

ACP-ASIM is the nation’s largest specialty medical society and is composed of more than 115,00 board-certified physicians, residents, and medical students.

Training Outside the Traditional Core Disciplines of Internal Medicine

After completing an internal medicine residency, many physicians go on to further training. Many enter the traditional subspecialty areas of Allergy and Immunology, Cardiovascular Disease, Endocrinology, Diabetes and Metabolism, Gastroenterology, Hematology, Infectious Disease, Medical Oncology, Nephrology, Rheumatology and Pulmonary Disease.

Some physicians, however, continue their training outside the traditional core disciplines of internal medicine. These related areas — among them addiction medicine, adolescent medicine, clinical decision making, clinical nutrition, clinical pharmacology and therapeutics, critical care medicine, geriatric medicine, gerontology, medical informatics, occupational and environmental medicine, physical medicine and rehabilitation, preventive medicine and public health, primary care sports medicine, and tropical medicine — have a significant impact on the practice of internal medicine and offer challenging and dynamic career opportunities in patient care, teaching and research.

Advanced training in other disciplines, such as adolescent medicine and tropical medicine, can enhance general internal medicine practice. Expertise in many of these specialty areas is likely to become increasingly important as the health care marketplace moves toward a system of managed care.

Residency Training

  • Duration of training: Three years.
  • Number of programs nationally: 564.
  • Number of entering residency positions per year: 8116
  • Types of fellowships or subspecialties: All medicine subspecialties.
  • Type of Match: Regular.
  • Overall competitiveness: Extremely Competitive in coastal cities — a difficult match for the "above average" student.   Moderately Competitive in large cities — a good chance of matching for the average student.   Competitive for most other programs — the average student is very likely to match.

Medical Student Club or Interest Group

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Shadowing or Mentoring Experiences Available to M1's or M2's




Suggested Journals, Books & Information for Interested Students

  • Annals in Internal Medicine.
  • New England Journal of Medicine.