Offshore peaks: Gran Paradiso, Mt. Blanc, Aconcagua. Most climbs are in the Western States: Shasta, Rainier, Whitney, others.
Wrote 3 reports on the Climber.Org Trip Reports page, newest to oldest:
Island Peak including Everest Base Camp 23 Apr 2013
Kilimanjaro via Marangu route -SpO2 study 22 Jan 2009
Aconcagua in Sneakers 5 Feb 2006