Objective: To provide an update on the status of provider participation in the US Wound Registry (USWR) and its speci- alty registry the Hyperbaric Oxygen Therapy Registry (HBOTR), which provide much-needed national benchmarking and quality measurement services for hyperbaric medicine. Methods: Providers can meet many requirements of the Merit-Based Incentive Payment System (MIPS) and simultaneously participate in the HBOTR by transmitting Continuity of Care Documents (CCDs) directly from their certified elec- tronic health record (EHR) or by reporting hyperbaric quality measures, the specifications for which are available free of charge for download from the registry website as electronic clinical quality measures for installation into any certified EHR. Computerized systems parse the structured data transmitted to the USWR. Patients undergoing hyperbaric oxygen (HBO2) therapy are allocated to the HBOTR and stored in that specialty registry database. The data can be queried for benchmarking, quality reporting, public policy, or specialized data projects. Results: Since January 2012, 917,758 clinic visits have captured the data of 199,158 patients in the USWR, 3,697 of whom underwent HBO2 therapy. Among 27,404 patients with 62,843 diabetic foot ulcers (DFUs) captured, 9,908 DFUs (15.7%) were treated with HBO2 therapy. Between January 2016 and September 2017, the benchmark rate for the 1,000 DFUs treated with HBO2 was 7.3%, with an average of 28 treatments per patient. There are 2,100 providers who report data to the USWR by transmitting CCDs from their EHR and 688 who submit quality measure data, 300 (43.6%) of whom transmit HBO2 quality data.