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Federally qualified health centers (FQHCs) increasingly provide high-quality, cost-effective primary care to individuals dually enrolled in Medicare and Medicaid. However, not everyone can access an FQHC. We used 2012 to 2018 Medicare claims and federally collected FQHC data to examine communities where an FQHC first opened and determine which dual eligibles used it. Overall uptake was 10%, ranging from 6.6% among age-eligible urban residents to 14.8% among disability-eligible rural residents. Community-level uptake ranged from 0% to 76.4% (median = 5.5%; interquartile range = 2.8%-11.3%). Certain subpopulations of dual eligibles are significantly more likely to use FQHCs. Our findings should inform the targeting of future FQHC expansions.

To examine the relationship between federally qualified health center (FQHC) use and hospital-based care among individuals dually enrolled in Medicare and Medicaid.Data were obtained from 2012 to 2018 Medicare claims.We modeled hospital-based care as a function of FQHC use, person-level factors, a Medicare prospective payment system (PPS) indicator, and ZIP code fixed effects. Outcomes included emergency department (ED) visits (overall and nonemergent), observation stays, hospitalizations (overall and for ambulatory care sensitive conditions), and 30-day unplanned returns. We stratified all models on the basis of eligibility and rurality.Our sample included individuals dually enrolled in Medicare and Medicaid for at least two full consecutive years, residing in a primary care service area with an FQHC. We excluded individuals without primary care visits, who died, or had end-stage renal disease.After the Medicare PPS was introduced, FQHC use in rural counties was associated with fewer ED and nonemergent ED visits per 100 person-years among both age-eligible (-14.8 [-17.5, -12.1]; -6.6 [-7.5, -5.6]) and disability-eligible duals (-11.3 [-14.4, -8.3]; -6 [-7.4, -4.6]) as well as a lower probability of observation stays (-0.8 pp age-eligible; -0.4 pp disability-eligible) and unplanned returns (-2.1 pp age-eligible; -1.9 pp disability-eligible). In urban counties, FQHC use was associated with more ED and nonemergent ED visits per 100 person-years (10.6 [8.4, 12.8]; 4.0 [2.6, 5.4]) among disability-eligible duals (a decrease of more than 60% compared with the pre-PPS period) and increases in the probability of hospitalization (1.1 pp age-eligible; 0.8 pp disability-eligible) and ACS hospitalization (0.5 pp age-eligible; 0.3 pp disability-eligible) (a decrease of roughly 50% compared with the pre-PPS period).FQHC use is associated with reductions in hospital-based care among dual enrollees after introduction of the Medicare PPS. Further research is needed to understand how FQHCs can tailor care to best serve this complex population.

Primary care is essential for persons with Alzheimer's disease and related dementias (ADRD). Prior research suggests that the propensity to provide high-quality, continuous primary care varies by provider setting, but the settings used by Medicare-Medicaid dual-eligibles with ADRD have not been described at the population level.Using 2012-2018 Medicare data, we identified dual-eligibles with ADRD. For each person-year, we identified primary care visits occurring in six settings. We calculated descriptive statistics for beneficiaries with a majority of visits in each setting, and conducted a k-means cluster analysis to determine utilization patterns, using the standardized count of primary care visits in each setting.Each year from 2012 to 2018, at least 45.6% of dual-eligibles with ADRD received a majority of their primary care in nursing facilities, while at least 25.2% did so in physician offices. Over time, the share relying on nursing facilities for primary care decreased by 5.2 percentage points, offset by growth in Federally Qualified Health Centers (FQHCs) and miscellaneous settings (2.3 percentage points each). Dual-eligibles relying on nursing facilities had more annual primary care visits (16.1) than those relying on other settings (range: 6.8-10.7 visits). Interpersonal care continuity was also higher in nursing facilities (97.0%) and physician offices (87.9%) than in FQHCs (54.2%), rural health clinics (RHCs, 46.6%), or hospital-based clinics (56.8%). Among dual-eligibles without care continuity, 82.7% were assigned to a cluster with few primary care visits.A trend toward care in different settings likely reflects improved access to patient-centered primary care. Low rates of interpersonal care continuity in FQHCs, RHCs, and physician offices may warrant concern, unless providers in these settings function as a care team. Nonetheless, every healthcare system encounter presents an opportunity to designate a primary care provider for dual-eligibles with ADRD who use little or no primary care.