{"data":{"id":"us/42-cfr-405.450","jurisdiction":"us","citation":"42 CFR 405.450","heading":"Appeals.","body":"(a) A determination by CMS that a physician or practitioner has failed to properly opt out, failed to maintain opt-out, failed to timely renew opt-out, failed to privately contract, failed to properly terminate opt-out, or failed to properly cancel opt-out is an initial determination for purposes of § 498.3(b) of this chapter.\n(b) A determination by CMS that no payment can be made to a beneficiary for the services of a physician who has opted-out is an initial determination for purposes of § 405.924.","path":["Title 42—Public Health","CHAPTER IV—CENTERS FOR MEDICARE \u0026 MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER B—MEDICARE PROGRAM","PART 405—FEDERAL HEALTH INSURANCE FOR THE AGED AND DISABLED","Subpart D—Private Contracts"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-42.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:11Z","sha256":"6c11dda8a56c5f897ef3bd028e00b9caf5d9f04e7d2654759bcf6697236236b6","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-405.445","next":"us/42-cfr-405.455"},"notice":"GroundRules: Original legal text. Not legal advice."}