International Medical Corps is a global, humanitarian, nonprofit organization, founded by volunteer doctors and nurses and dedicated to saving lives and relieving suffering through relief and development programs.
I checked them out and they are
an A+ rated charity by the American Institute of Philanthropy
and a BBB accredited charity
Ninety-two cents of every dollar goes directly to its field programs – one of the highest fundraising efficiencies in the industry.
Their emergency response team is in Haiti in force, as you can see here http://www.imcworldwide.org/haiti
Helping them out with their mission is as simple as texting "HAITI" to 85944
(A one‐time donation of $10 will be added to your mobile phone bill or deducted from your prepaid balance.)
or you can go to this page HERE on the IMC website to donate.