Opioid Use Disorder Practice by Licensure Category in North Carolina

Nurse practitioners, physician assistants, and certified nurse midwives, collectively known as advanced practice providers (APPs), are critical members of the opioid use disorder (OUD) treatment workforce. Few studies compare the OUD treatment practice patterns of APPs relative to physicians.

In this cross-sectional study, we distributed a survey examining general substance use disorder (SUD) and OUD-specific treat-ment practices to all licensed physicians and APPs in North Carolina, resulting in a sample of 332 respondents. Respondents were asked about screening, referrals, and Drug Enforcement Administration (DEA) X-waiver status. Waivered providers were asked about prescribing buprenorphine. Differences in practice patterns by provider type were examined using descriptive statistics and chi-squared tests.

Practice patterns were similar between APPs and physicians; however, more APPs reported screening their patients for SUDs (83.3% versus 69.4%, p = .0045). Of the providers who were waivered to prescribe buprenorphine, APPs and physicians were equally likely to be currently prescribing buprenorphine (75.8% versus 77.1%, p = .8900).

This was a descriptive cross-sectional study using self-report data from a purposive sample and may not be representative of all providers.

Our results describe practice patterns for APPs and physicians and differences that may be reflective of regulations and therapeutic approaches. Similarities in obtaining an X-waiver and prescribing buprenorphine suggest that reducing restrictions on APPs may result in a larger treatment workforce.