Survey studies of clinicians often face the challenge of achieving sufficient response rates to adequately understand practice realities. We briefly report our experience recruiting a sample of medication for opioid use disorder (MOUD) providers in a southwestern U.S. state (Arizona) to study the impact of temporary federal regulatory changes on their implementation of treatment accommodations to increase access to methadone and buprenorphine during COVID. After multiple and varied recruitment approaches using a modified Dillman method, we achieved a response rate of 5.4%. This was significantly lower than reported rates from other studies of 43-48%. To examine why we struggled to …