Part 421 — Medicare Contracting
Current through Oct 8, 2026
Authority: 42 U.S.C. 1302 and 1395hh.
Source: 45 FR 42179, June 23, 1980, unless otherwise noted.
Sections
- § 421.1 Basis, applicability, and scope.
- § 421.3 Definitions.
- § 421.5 General provisions.
- § 421.100 Intermediary functions.
- § 421.103 Payment to providers.
- § 421.104 Assignment of providers of services to intermediaries during transition to Medicare Administrative Contractors (MACs).
- § 421.110 Requirements for approval of an agreement.
- § 421.112 Considerations relating to the effective and efficient administration of the program.
- § 421.114 Assignment and reassignment of providers by CMS.
- § 421.120 Performance criteria.
- § 421.122 Performance standards.
- § 421.124 Intermediary's failure to perform efficiently and effectively.
- § 421.126 Termination of agreements.
- § 421.128 Intermediary's opportunity for hearing and right to judicial review.
- § 421.200 Carrier functions.
- § 421.201 Performance criteria and standards.
- § 421.202 Requirements and conditions.
- § 421.203 Carrier's failure to perform efficiently and effectively.
- § 421.205 Termination by the Secretary.
- § 421.210 Designations of regional carriers to process claims for durable medical equipment, prosthetics, orthotics and supplies.
- § 421.212 Railroad Retirement Board contracts.
- § 421.214 Advance payments to suppliers furnishing items or services under Part B.
- § 421.300 Basis, applicability, and scope.
- § 421.302 Eligibility requirements for Medicare integrity program contractors.
- § 421.304 Medicare integrity program contractor functions.
- § 421.306 Awarding of a contract.
- § 421.308 Renewal of a contract.
- § 421.310 Conflict of interest requirements.
- § 421.312 Conflict of interest resolution.
- § 421.316 Limitation on Medicare integrity program contractor liability.
- § 421.400 Statutory basis and scope.
- § 421.401 Definitions.
- § 421.404 Assignment of providers and suppliers to MACs.