42 C.F.R. § 414.1335
(a) Criteria. Except as provided in paragraph (b) of this section, a MIPS eligible clinician, group, virtual group, subgroup, or APM Entity must submit data on MIPS quality measures in one of the following manners, as applicable:
(1) For Medicare Part B claims measures, MIPS CQMs, eCQMs, or QCDR measures.
(i) Except as provided in paragraph (a)(1)(ii) of this section, submits data on at least six measures, including at least one outcome measure. If an applicable outcome measure is not available, reports one other high priority measure. If fewer than six measures apply to the MIPS eligible clinician, group, virtual group, or APM Entity, reports on each measure that is applicable.
(ii) A MIPS eligible clinician, group, virtual group, and APM Entity that report on a specialty or subspecialty measure set, as designated in the MIPS final list of quality measures established by CMS through rulemaking, must submit data on at least six measures within that set, including at least one outcome measure. If an applicable outcome measure is not available, report one other high priority measure. If the set contains fewer than six measures or if fewer than six measures within the set apply to the MIPS eligible clinician, group, virtual group, or APM Entity, report on each measure that is applicable.
(2) For CMS Web Interface measures.
(3) For the CAHPS for MIPS survey measure.
(4) For Medicare CQMs.
[81 FR 77537, Nov. 4, 2016, as amended at 82 FR 53953, Nov. 16, 2017; 83 FR 60079, Nov. 23, 2018; 84 FR 63195, Nov. 15, 2019; 88 FR 79534, Nov. 16, 2023; 89 FR 98561, Dec. 9, 2024]