CareMax, which operates 56 medical centers in Florida, Texas, Tennessee and New York catering largely to older patients, filed for Chapter 11 bankruptcy in Texas on Sunday. The Miami-based firm listed debts of $693 million and assets of $390 million, according to a filing with U.S. Bankruptcy Court for the Northern District of Texas. In August, CareMax posted a second-quarter loss of $170.6 million and issued a going-concern warning. This month it disclosed it would not be able to file its third-quarter report with the SEC due to a lack of funds.