no way, they make way more, probably close to double. the cards guys can answer the rest. they commonly read echos which counts as a procedure. im not a cards guy, they can tell u the rest.
No way, not the same.
Makes about double of an internist and does not do primary care.
Noninvasive cards would interpret echoes, nuclear scans, do stress tests and probably transesophageal echoes, manage a lot of congestive heart failure and CAD patients in clinic, etc.
Primary care internist would be taking care of general medical issues, cancer screening, HTN, diabetes, COPD, pretty much anything.