In 2015, approximately half (50.3%) of the physicians in the United States had information from other providers outside of their practice electronically available at the point of care.
There was wide variation by state, ranging from 34.6% in Idaho to 76.4% in South Dakota.
Sixteen states and the District of Columbia were in the range with the lowest percentage of physicians with electronic access to more comprehensive patient information (34.6%–47.2%).
Another 16 states were in the middle range (47.3%–57%). The 18 states with the highest percentage of physicians having such information electronically available were in the top range (57.1%– 76.4%).
LINK: http://www.cdc.gov/mmwr/volumes/65/wr/mm6534a7.htm?s_cid=mm6534a7_e