Someone asked about DO neonatologists. Here are a few prominent ones courtesy of Google:
Professor at U of Arizona medical school:
http://www.peds.arizona.edu/neonatology/edde.html
Professor at U of Arizona medical school:
http://www.peds.arizona.edu/neonatology/jenkins.html
Professor of at Univ of Missouri medical school:
http://www.childrens-mercy.org/mso/usr/view.asp?usr=81
Professor at U of Arizona medical school:
http://www.peds.arizona.edu/neonatology/edde.html
Professor at U of Arizona medical school:
http://www.peds.arizona.edu/neonatology/jenkins.html
Professor of at Univ of Missouri medical school:
http://www.childrens-mercy.org/mso/usr/view.asp?usr=81