Practice both anesthesia and pain. This is 100% true. An anesthesia background does not prepare one well for multidisciplinary pain. It is a good start for those who think they will be multimillionaire needle hockey's with no med management. This practice may have existed but again is dying, lack of data and insurance to support.
Multidisciplinary pain is a money loser and rarely exists outside of academia. Academic pain is legit but is very different than private practice.
As epiduralman noted, patient's in large part want passive treatments as a "cure" for their chronic long term pain. They also tend to have little insight into the ongoing issues driving their pain and tend to chemically cope. I spend a lot of time on patient education, pushing PT, psychotherapy, and nonopioid med management, tapers etc. I am heavily interventional and can tell you it is not the pancrea it is advertised as for the long term management of chronic pain.
Private practice pain is largely a wasteland of trading opioid for shots or as a blockjock in the factory line algorithm of an ortho/spine surgery practice to tee up for planned surgery and dealing postop with their failed surgical patients. Also, "producing" against a high overhead.
If you think that you will be a hot shot 100% interventional pain doc, you are in for a rude surprise when your referring physicians expect that you take over the management of the opioid, muscle relaxant, benzo combo or the referral base dries up.
I experienced it, I'm ok with it , but your partners won't as they think you are "leaving money on the table " or letting good money walk out the door for not pushing up your billings through unnecessarily frequent, high volume, or poorly studied but highly reimbursed procedures .
Expectation vs reality.