THURSDAY, Nov. 30, 2017 (HealthDay News) -- All prescribers of opioid pain medications -- not just high-volume prescribers -- play a role in the U.S. epidemic of opioid abuse and overdoses, a new study says. Deaths from drug overdoses in the United States rose from about 52,000 in 2015 to more than 64,000 in 2016. Most of those deaths involved opioids, including prescription pain medications such as fentanyl and oxycodone (Oxycontin) as well as the illegal drug heroin, according to researchers from the Johns Hopkins Bloomberg School of Public Health. For the study, the researchers analyzed more than 24 million opioid prescriptions given in 2015 to more than 4 million people in California, Florida, Georgia, Maryland and Washington state. The investigators found that opioids were often prescribed to high-risk patients by health care providers who typically do not prescribe large volumes of opioids, including primary care physicians, surgeons and providers who are not physicians. Howe...