In healthcare, “high utilizers” are complex patients who use a disproportionate amount of health care relative to their peers. The burden of repeated episodes of illness and treatment falls heavily on these people. Much of this cycle seems avoidable, and in the last decade, attempts to improve care for these patients have gained momentum.1, 2 The most promising interventions have involved rethinking the roles of providers and the practices that care for these patients.3,4,5

Complex patients benefit most from a high degree of continuity of care and attention from their primary care providers.6,7,8,9,10,11,12,13 However, maximizing provider accessibility to match the needs of this population places heavy demands on the time and availability on those clinicians. So, to do it, the medical community must grapple with what can or should be expected from the modern physician. In this commentary, we discuss the challenges in designing practice models that optimize care for high-utilizing patients.

When designing a care model for complex patients, one of the primary questions is who will deliver that care. One requirement is that the model has appropriate structure and support to maintain a high degree of patient-provider continuity. This produces physicians who are intimately familiar with their patients, aware of their social and medical challenges, and up to date with their past and current care. Greater continuity of care is associated with decreased hospitalization, better patient care metrics, and lower costs.13 This stands in contrast to fragmented care, which is inefficient, and leads to unnecessary repeat testing, broken handoffs, misunderstandings, and patient dissatisfaction.14 However, while being the single doctor responsible for a cohort of chronically ill and needy patients can generate a high degree of patient-provider continuity, it may be a prescription for burnout.15, 16 Physician well-being and burnout have become topical, with national multidisciplinary organizations (National Academy of Medicine: Action Collaborative on Clinician Well-Being and Resilience) and recent medical conferences (American Conference on Physician Health 2019, American Academy of Family Physicians 2020) focused squarely on these issues. We have a nostalgic impression of the always-available full-time internist as an enviable position that commanded respect. However, today, few physicians would be likely to sign up for this job description. To be sustainable, the position of a complex patient care provider needs to be crafted to avoid burn out and attrition.

Primary care physicians within academic medical centers would seem well positioned to manage patients with multimorbidity given their need for specialty care and interdisciplinary coordination.17, 18 However, designing this type of practice for an academic environment poses specific challenges. Physicians at academic centers are already keenly aware of the need to juggle clinical responsibilities with scholarship and teaching – serving the faculty mission of advancing medical knowledge through education and research. At many academic centers, a strictly clinical focus may not provide a viable path to promotion, which requires research and publications and a national or international reputation in the physician’s field. Maintaining this balance may be all the more difficult when serving as an intensive outpatient physician. Ensuring continuity of care for complex patients requires a large clinical footprint with a focus on this high-risk cohort. Yet, without robust coverage systems that adequately serve the needs of these medically complex patients, time otherwise apportioned to research may be interrupted by patient care. With the success of intensive outpatient programs often being measured by decreases in medical expenses and reductions in emergency room visits or admissions, physicians feel pressured to stop other activities to personally oversee patient care. A final barrier for academic physicians in this care model is the lack of education about complex patient care in the current medical curriculum and a corresponding lack of comfort undertaking this role. Few residency programs have dedicated training on how to care for complex patients with frequent hospitalizations. In fact, these patients are often shunted away from residency primary care clinics to full-time physicians to help improve continuity, which is de facto limited by the three-year duration of residency.

Perhaps what is needed is to formally recognize the position of outpatient intensivist. To support these new subspecialists, there needs to be a fundamental shift in the structure and value placed on this field. Patients who occupy the apex of healthcare utilization and suffer from complex multimorbidity have unique needs, requiring providers with specialized skills practicing in distinctive care models. Intensive primary care therefore merits a new framework that is rooted in general internal medicine but extends beyond. To start, intensive outpatient care needs to be integrated with, rather than separated from, residency training. As with other medical specialties, fellowships may be needed to train residents to become competent outpatient intensivists. At the institutional level, recognizing intensive outpatient care as a formal division of internal medicine, and affording it a commensurate level of support, would make it possible to recruit and retrain skilled academic physicians in this field. In recognition of the high potential for burnout, there would need to be a significant reduction in patient panel sizes to offset the increased needs and clinical demands. This would need to be paired with a promotional pathway that recognizes the value of this kind of care. At the national level, the current reimbursement levels are insufficient to cover the time and resources that would be required. Adjustments would be needed in the current payment scheme to raise compensation accordingly.

In summary, our healthcare system is faced with the ongoing need to care for a growing group of complex, high-utilizing, chronically ill patients. Academic medical centers could design a new subspecialty of outpatient intensivists to take on this challenge. While we have focused on primary care physicians, we acknowledge that there are other models and types of providers, such as community health centers, team-based care, and nurse practitioners, that care for complex patients. There is still much to learn about the effectiveness of these alternatives and how physician-centered outpatient care would fit into this ecosystem, to both complement and coordinate with other providers. For example, a recent publication showed that even the Camden Coalition’s capable multidisciplinary teams of nurses, social workers, and community health workers failed to reduce readmissions amongst high-utilizing patients.19 Research to date suggests that outpatient intensivist care would at a minimum allow complex patients substantially more time for ambulatory visits, and a detailed curriculum devoted to addressing social determinants of health.20, 21 However, a committed effort to high-level systems change is needed including establishing curricula for medical students and medical residents surrounding the care of patients with multimorbidity and crafting a framework for formal specialty training and its certification parameters. This new focus on graduate medical education would need to be paired with the creation of division-level infrastructure within academic departments of medicine and realistic levels of financial support to make this a viable career path. Until such changes are made, intensive outpatient clinicians may continue to struggle to contend with medical, professional, and personal barriers that conflict with what is best for their patients.