The number of opioid treatment programs (OTPs) increased 39 percent, from 1,067 to 1,482 OTPs.
The number of clients receiving methadone in those facilities increased from 227,000 to more than 356,000 through 2015.
Other options for medication-assisted treatment have also seen increased use. The number of clients receiving buprenorphine in facilities increased from about 2,000 to more than 76,000 as the treatment became more widely available. At the end of 2016, it was offered in more than half of OTPs, compared to just 11 percent in 2003.
Opioid Treatment Programs (OTPs) are regulated by the Substance Abuse and Mental Health Services Administration (SAMHSA) and are qualified to dispense the controlled substances, methadone and buprenorphine, to treat addiction to opioids (e.g., heroin and prescription pain relievers).
For SAMHSA detailed report please refer to this link or you can download this document.