Pierce after the war (or Pierce today if you prefer)

Pierce practiced any means necessary to save lives and protect others. He respected differing opinions as long as they didn’t endanger others.

He would be a fat old drunk, and a retired surgeon that is still a bachelor (possibly even divorced once or twice) and has to hire whores to sleep with him, now that he's not attractive enough for beautiful young women to want anything to do with him. He'd do stand-up comedy on the side as a hobby. Following the timeline of the show, he would have been living in Boston and visiting the bars while attempting to chase chicks, and they'd get really nasty and call him a "dirty old man."

That is, if he was [supposed to be] in his 20s in the early 1950s, though the actor was clearly in his 30s and 40s while the show was on. I go by the 20s thing because historical records show that only people in their late teens and 20s (save for the generals) were sent to Korea. The show stated that Pierce was already working as a surgeon who had finished college and his residency before being drafted, and most people (if they start at 18 with the end of high school) usually end up finishing their education in becoming a doctor and surgeon by their early- to mid-20s.

So let's say, Pierce was 25 when he was drafted in 1951. That would mean he was 27/28 in 1953 when the official fighting ended and our troops were sent home. That would mean by the time he was 75, 50 years later....oh my God--he would have been an old man in 2003! And that's if his alcoholic excesses didn't kill him before then!

In reality he would have been court martialed at least once. It wouldn't have even taken one actual court martial as I believe Hawkeye would have been a coward. The way he stands up to so many high ranking officers and even attends peace talks just wouldn't have been tolerated the way it was on the show.

Back home and now without the regimented thinking of the Army to beat him with a wet lettuce he would run roughshod over nurses, many of whom he would try and rape or pressure into dating him. He would drink frequently and provide sub standard medical care which would now be exposed as unlike wounded soldiers who are thousands of miles from home, he would now be treating kids and various members of the community.

Eventually he would fuck up big time and someone would die or become very ill due to half arsed nature.

I just looked up up, he was 28 when the Korean war started and 31 when it ended (the war not the series which lasted longer). By the time he gets back home he would find himself to be older than the other med students if he was still completing his studies but far more experienced.

By the time his career would be ending it would be the 1980's and he would be spared the #metoo charges that might still come about once he was in his 80's. If he lived that long given his alcohol abuse.

"Pierce today" would be at least 100 years old (the Korean War ended 70 years ago, and he had to have been at least 30 years old). Probably long retired from practice.