Three papers on what a decade of Medicare care-management evidence says about between-visit care: the clinical case, the value-based-care case, and the operational case. Written for the people who run independent primary care.
What CMS's own evaluation found when Medicare paid for structured between-visit care ($74 per patient per month in slower spending growth, driven by fewer hospital and ED services), plus the specific ingredients that separate programs that work from the low-touch ones that failed, and why only 4% of eligible patients ever received it.
CMS built APCM to work inside an ACO. ACO participation satisfies APCM's performance-measurement requirement, APCM billing supports beneficiary attribution, and the work APCM pays for is the same work the ACO quality measures score.
Why chronic care management stalled at 4 percent of eligible patients (minute-by-minute time logging, consent friction, and a staffing model that needed ~131 enrolled patients to break even on one nurse), and how APCM's per-patient monthly codes, tiered by complexity instead of minutes, change the operating math for independent practices.
The APCM Evidence Series · July 2026. Citations to CMS evaluations, federal rulemaking, and the peer-reviewed literature appear in each paper. These papers are for general information and are not billing, legal, or medical advice.