Subspecialties of Internal Medicine

Internal medicine physicians can choose to focus their practice on general internal medicine or take additional training to "subspecialize" in additional areas of internal medicine after completion of their core residency training.

Familiarize yourself with the flow of internal medicine
training with this easy-to-follow infographic. Also
available in Spanish.

Subspecialties certified exclusively by the American Board of Internal Medicine:

Subspecialties certified by the American Board of Internal Medicine in conjunction with other specialty boards:

The training an internal medicine physician receives to subspecialize in a particular medical area is both broad and deep. Subspecialty training (often called a "fellowship") usually requires an additional one to three years beyond the standard three year general internal medicine residency.

Additional Training Programs

Combined Training Programs

Residency programs that combine basic internal medicine with other disciplines are available that broaden the clinical skills of trainees and usually allow completion of training in a shorter period of time than performing different residencies independently. Internal medicine combined with pediatrics is the most common combined program, although residency programs combined with many other specialties are available.

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Learn more about the unique leadership roles, career pathways and impact of internal medicine physicians. Learn more