All physicians require a state license to practice medicine, and many will need hospital privileges, a DEA number, a CSP number, a PMP account, and fulfill other bureaucratic requirements to earn a living. Chapter 9 of my book, "The Locum Life: A Physician's Guide to Locum Tenens,"discusses these facts of life in detail.
For a brief overview, of credentialing, licensing, and DEA, I've posted a 10-minute video summary on Youtube. If you are interested in working locum tenens, this information is critical. Please check out the video. I look forward to your comments! Thank you.