Is there really a need for 24 hour doctor visits most of the time?
No. Doctors can have mostly normal 8-hour workdays, 5 times per week. Nurses administer drugs and monitor the patients. If a problem arise, they can call the doctor in charge of the patient or bring the doctor doing the night —or weekend— shift.
In the last few years I've spent almost a triple number of days in hospitals (not as a patient). I can tell you from first-hand experience that most patients that are hospitalized —except in the ICU— do not need multiple doctor visits per single day. Maybe they need a couple different specialties, but certainly they do not need multiple doctors of the same specialty in the same day or more than a few specialties.
As has been pointed out in many submissions on HN about USA's medical practices, the main reason you get many visits is to inflate your bill. I think someone even wrote that he was charged $600 per 1-minute visit during his stay in the hospital.
No. Doctors can have mostly normal 8-hour workdays, 5 times per week. Nurses administer drugs and monitor the patients. If a problem arise, they can call the doctor in charge of the patient or bring the doctor doing the night —or weekend— shift.