Dr. Russel Dohner looked after his neighbors for 55 years, charging them for a visit about what they would pay for a fancy cup of coffee: two bucks when he started his practice.  Five bucks later on.  Dr. Dohner worked with a broken back and after he had a heart attack — the only two times he ever closed his clinic. The morning we first met, back in 1983, Dohner had been to surgery twice, prepped a broken arm, handled two emergency cases, checked on 50 patients and delivered three babies. It was not yet 10:30.