From yogis and acupuncturists to neurologists, physical therapists, and chiropractors, practitioners from a variety of backgrounds call themselves “pain-medicine specialists.” The reason there are many types of pain management specialists is because no one type is particularly great at treating chronic pain by itself. Pain management requires a multi-pronged approach, which is why it’s a multi-disciplinary field.
In terms of training, it’s important that the clinician completed an accredited ACGME-/ABMS-accredited pain medicine fellowship. That accreditation is key. Many of these fellowships are offered through anesthesiology programs, but some neurology and physical medicine and rehabilitation programs offer them, too.