Constructing an inflammatory bowel disease patient–centered medical home

Ideally, the local environment should consist of a single or a few large payers to ease SMH implementation. UPMC is a large integrated delivery (25 hospitals and more than 600 clinics) and financing system (more than 3 million members and is the dominant payer in the region), with a history of leveraging payer–provider partnerships to achieve better patient care, education, and research, and thus served as an ideal collaborator in the design and launch of the IBD SMH. Most physicians in the United States do not work in an integrated payer–provider health delivery system, and partnering with a large regional payer with an interest in specialty population-based chronic care is reasonable for constructing an SMH in your medical neighborhood.
 

Patient population

In addition to having a collaborative health plan with large population coverage, there must exist a substantial IBD population managed by gastroenterologists. There must be a sufficient number of high-utilizer, high-cost members to justify up-front capital expenditure and return on investment. To determine the feasibility and utility of creating an IBD SMH at UPMC, we collected baseline data on the following: 1) the number of IBD patients within our IBD center and health plan, 2) a hotspotting analysis for our Pennsylvania counties, and 3) health care utilization of the IBD population of interest. At the time of the SMH inception, there were 6,319 Crohn’s disease and ulcerative colitis patients (including all insurance plans) in our center, with more than 3,500 members insured by our HP. There was a 30% increase in new IBD patients to our center in the 3 years before starting the IBD SMH, and the HP had a 27% increase in overall IBD members. Based on a regional hotspotting analysis, $24.3 million of the annual total of $36.9 million was related to hospitalization costs from our IBD patients. The high-utilizer patients accounted for most of the total cost of care for our HP; 16% accounted for 48% of the per-member per-month cost and 29% accounted for 79% of the total annual cost. These baseline data supported justification for an IBD SMH.

Although there is no absolute minimum number of members (patients) required, and the SMH model can be scaled to various IBD populations, we believe that at least 1,000 patients covered by a single insurer must exist. The justification for the 1,000 patients is an estimate of the number of high-utilizer patients who would be required to justify a cost savings, and ultimately a return on investment. We calculated that at least 300 high-utilizer patients would need to be included in our IBD SMH to show a reduction in health care utilization and total cost of care. Therefore, if we assume that approximately 30% of any chronic disease population drives the majority of cost and represents the highest utilizers, we estimated that at least 1,000 patients should be covered by a single insurer.

For development of an SMH, there are two approaches that may be taken: Design the medical home for the entire Health Plan’s population of patients with the disease of interest, or focus only on the high-utilizing, most expensive patients. The latter will include a more complex and challenging cohort of patients, but likely will provide the opportunity to show a reduction in utilization and total cost of care than a broader all-comers population approach.

Physician champions

A successful SMH requires a physician (or health care provider) champion. IBD care within the SMH is unique and distinct from gastroenterologists’ classic training and specialty care. In addition to addressing the biologic disease, the emphasis is on whole-patient care: preventive care, behavioral medicine, socioeconomic considerations of the patient, and provision of care for nongastrointestinal symptoms and diseases. In an SMH, the specialist must be willing to incorporate and address all facets of health care to improve patient outcomes.

Goals and measures of success

To ensure successful deployment of an SMH, it is important to establish shared payer–provider goals and metrics during the construction phase of the medical home. These goals should include an enrollment target number for each year, quality improvement metrics, patient experience outcomes, and metrics for a reduction in health care utilization and total cost of care. Examples of our IBD SMH year 1 and year 2 goals are outlined in Supplementary Table 1 (at https://dx.doi.org/10.1016/j.cgh.2017.05.026). In the first year of our IBD SMH, we were able to achieve our goals, and publication of our results is forthcoming. We have enrolled more than 325 patients, retained 90%, reduced emergency room visits and hospitalizations by 50%, and significantly improved quality of life. Most of our patients have been assigned an HP coach and use the electronic medical portal to communicate with the medical home. Our patient satisfaction for physician communication was 99%.