As with deinstitutionalization, experiences with public-sector managed behavioral health care are mixed. Some empirical evidence of its successes, failures, and uncertainties exists, but the systematic, longitudinal study required to draw substantive conclusions is still lacking. We report available literature on the benefits and disadvantages of public-sector managed care as it has been implemented to date.
Benefits and potentials
Process effects. For more than 20 years, managed care proponents have contended that integrating primary care with other specialty services reduces deficiencies in access to care that occur under fee-for-service payment systems. Indeed, under managed care, initial access to diagnostic and treatment services and frequency of referral from primary care to specialty mental health services have improved for enrollees (
12,
74). The gate-keeping function, computer technology, and flexible benefits structure of managed care can enhance accountability and coordination of services (
75).
In traditional fee-for-service models, clinicians usually avoid spending their time on anything but face-to-face contacts with patients—the only reimbursable services (
76). However, in a capitated payment model, health systems may use a variety of techniques to maximize effective use of clinicians' time, such as telephone monitoring and referrals to community resources. This flexibility for providers may be supported by an expanded benefits package, giving patients access to more appropriate levels, types, and sites of care. For patients with complex illnesses and multiple comorbidities, flexibility in coverage and access can mean a vast improvement in quality and continuity of care (
74,
75).
In Hall and Beinecke's survey (
77) of consumers and family members, both self-selected respondents and respondents affiliated with the National Alliance for the Mentally Ill, those enrolled in managed care reported better coverage. Specifically, residential care, crisis services, home care, office visits, family psychoeducation, and intensive case management were all more likely to be covered.
Outcomes. Empirical evidence abounds that initial and short-term cost savings accrue to private-sector groups insured under health maintenance and preferred provider arrangements compared with traditional indemnity plans. Recent reports from public-sector agencies implementing managed behavioral health care plans also support this trend. "Administered appropriately, [managed behavioral health care] can provide quality care at reasonable cost," according to an Institute of Medicine publication (
12).
The cost savings are derived from several sources. In Massachusetts nearly half the savings generated in a public-sector plan resulted from a managed care organization's ability to extract discounts on traditional fees from providers (
78). Organizations with large enrollments can also negotiate favorable prices on the basis of promised volumes; case studies indicate that some savings result from simple price reductions (
4). Most savings come from substituting less costly outpatient or noninstitutional care for expensive inpatient services (
79). Reducing unnecessary institutionalization can also benefit patients by decreasing psychological costs and improving their motivation and potential for rehabilitation, assuming alternative treatments are available.
Theoretically, through managed care the delivery of mental health services can become more evidence based, with research results translated into practice standards and ultimately into increased effectiveness. Currently, little consensus on psychiatric practice guidelines exists (
75,
80,
81). However, for conditions for which guidelines and protocols are available, managed care can provide an infrastructure, through information systems, to make the protocols administratively feasible. For example, guidelines for depression could be the basis for automated prompts in medical charts for medication-related visits.
Treatment effectiveness could also be increased through managed care's potential to support innovative service delivery. The private sector is often viewed as less bureaucratic, less vulnerable to political pressures, more able to implement innovative programs, more able to change nonproductive services and practices, and more likely to dislodge entrenched institutional and professional barriers to improved care. The private sector has shown in some cases that managed care's flexibility can allow creative use of resources to manage difficult patients throughout the course of their illness (
74,
75).
Proponents of managed care also highlight consumer choice as a strength. Especially in network-based managed care organizations, information about participating providers is available to consumers, who can then choose among providers under contract to offer services at the same price to the consumer (
19). Overall, managed care can provide an organized framework and appropriate standards to decrease inconsistent mental health treatment and the chaotic and fragmented nature of mental health care. The elements of choice and market competition can promote more accountability and increase providers' orientations toward outcome.
Negative effects
Unfortunately, the empirical and anecdotal evidence of the negative effects of public-sector managed care is as compelling as the evidence for its benefits.
Decreased access to care. Managed care may prevent access to care or reduce care either indiscriminately, for all groups, or by discriminating against certain groups, such as those with severe mental illness. In some states, substitution of managed care for traditionally delivered public services has caused confusion or produced a double standard of care (
74,
82). Managed care programs operating in state Medicaid programs may or may not include the protections originally intended to ensure availability of services to clients. State policy changes made to increase or decrease reimbursement for some services have led to treatment decisions not in patients' best interests. Medical necessity, a concept drawn from the traditional insurance literature, can be used to delay or preclude access to care (
82).
Research indicates that Medicaid clients are subject to differential levels of treatment in the medical care system. Research suggests similar delays in treatment for patients with severe mental illness. When managed care is applied to public-sector clients with severe mental illness, traditional medical models can result in delays in treatment or exclusions of vital services. Vulnerable and disabled populations are potentially most at risk from the failures in the managed behavioral health care market (
5).
In Hall and Beinecke's survey (
77) of consumers and family members, respondents enrolled in managed care plans reported better coverage, as noted, but they also reported more difficulties with access, more grievances and complaints filed, and more unresolved appeals. Mechanic and McAlpine (
5) reported reductions in mental health care across the board for individuals in the public system, regardless of diagnosis. They noted that irrespective of level of illness, the intensity of services was relatively unrelated to patients' prior time in treatment or the severity of their symptoms. Other studies found that treatment duration was often shorter in the public sector than in the private sector for those who had similar levels of illness, suggesting deliberate skimping or insufficient access (
80,
83).
Reductions in treatment may also be a function of contracting care to vendors through carve-out arrangements. Contracting methods and terms used for indemnity medical insurance are not necessarily appropriate for managed behavioral care of severe mental illness. Introducing gatekeepers into service delivery can change access to and continuity of care for individuals for whom constancy in treatment is paramount (
19); those with chronic illnesses are not well served by disjointed or short-term arrangements.
Furthermore, contracts for delivering public-sector behavioral health care are often negotiated for only one year, which is often too short a period to ensure long-term provider commitments. Interfering with relationships with patients' usual providers can put patients at higher risk of falling out of the system altogether (
84). If a vendor can delay care and reduce services under a capitated, short-term plan, the vendor can profit in spite of unmet client need. Ultimately, the public sector is responsible for any care that must be delivered, which calls into question whether contracting mechanisms are suitable for the individual client or for the public good.
The contracting method also affects stability of enrollment, through vendors' implicit or explicit selection of risk. Issues of risk selection have always been paramount in the managed care debate. Plans that offer comprehensive high-quality services, or services targeting less healthy or more needy patients, risk attracting more costly enrollees. By measuring potential enrollees' health status and predicting their future service use, plans can be selective about who enrolls. By limiting access to care once patients are enrolled, plans can encourage disenrollment of expensive patients.
In fact, patients in employer-sponsored managed behavioral health plans who have severe psychiatric disorders are significantly more likely to disenroll than those with less severe problems (
85). In Los Angeles, a public mental health managed care plan had disproportionately higher rates of disenrollment of non-English-speaking clients and those with a diagnosis of schizophrenia (
84).
Deficiencies in quality, appropriateness, and outcomes of care. The efficiencies and cost-effectiveness touted by managed care proponents may be negated by current models. Contracting with mental health practitioners separately from medical care providers, as in carve-out plans, adds administrative costs at several levels, and those costs are often passed through to the purchaser (
12), which can be the plan, the employer, or the employee. In plans that require the vendor to assume risk and costs, the vendor may try to reduce administrative costs to improve profit margins. One way of doing so is to minimize the numbers of providers in the network or to contract with smaller provider groups, which often lack the specializations needed to treat complex cases like severe mental illness.
The potential for cost-shifting and profit-making is determined by the contractual terms between the payer and the managed care organization. Thus the incentives and disincentives built into these agreements are particularly important (
75). The populations most vulnerable to serious and persistent mental disorders are often at risk due to failure to recognize their special circumstances or failure to treat them soon enough or at the appropriate level of care with specialty services. Economic incentives to provide less-intensive services and for shorter periods place those who need long-term services at risk of missed diagnoses, more complications, longer hospital stays, and poor recovery (
12,
83).
Recent case studies have illustrated measurably poorer outcomes from managed behavioral health care for persons with more serious disorders. In Massachusetts, managed care programs for persons with severe mental illness did decrease the number hospitalized, but they also increased the number of admissions and the length of stay for those admitted (
78). A Utah study compared outcomes for clients with a diagnosis of schizophrenia who were enrolled in a managed mental health carve-out with those who received traditional fee-for-service care under Medicaid (
86). All clients improved; however, those in the carve-out showed significantly less improvement, and the differences were greatest for those who had the worst mental health status at baseline.
Sometimes intensity of care may be reduced too much. In one study, patients with the largest reductions in inpatient length of stay had a significantly higher risk of readmission within 60 days (
5). Other studies have also found deleterious effects for those with severe mental illness (
12,
87).
With regard to costs, savings gained from managed care do not appear to be directed toward improved care for persons with serious mental illness or for public clients. Shifting enrollees from a behavioral health plan to a medical plan, a medical contract, or a nonmedical system such as housing or welfare can reduce potential costs to the behavioral health plan and transfer costs to other payers, including the consumer and the community (
5,
12,
74,
75). In attempts to reduce pharmacy costs, some publicly financed managed care programs have constrained formularies, excluding the newer, more costly psychopharmaceuticals and promoting generic substitutes and lower-cost alternatives. With little evidence of clinical substitutability or effectiveness, this approach limits treatment alternatives (
12).
The fallacy of choice. Consumer choice is considered a potential strength of the managed care model. However, it may mean relatively little in terms of plan selection, provider selection, or treatment options for individuals with mental illness, for several reasons. First, the chance to choose among health plans is available primarily to the employed. For public-sector beneficiaries, most state-sponsored behavioral health plans offer only one plan and one network of providers.
Further, the aspect of choice is only as good as the quality and transmission of information about the provider network and the quality and breadth of the network. Some behavioral health plans offer limited networks of providers, or networks heavily weighted with master's-level providers rather than doctoral-level professionals or psychiatrists. Public-sector networks are often restricted to providers who are willing to provide services at the Medicaid contracted amount, usually below market-based fees, further constraining enrollees' provider selections.
In addition, information about treatment may be geared to those who have greater capacities to understand and translate data—capacities that are often compromised among persons with mental illnesses (
5). Culturally appropriate care may not be available in the provider networks offered to indigent mentally ill clients, or it may be financially inaccessible (
88). Mental health consumers are also less likely to be able to accurately assess future treatment needs.
Mentally ill consumers as individual purchasers seem poorly positioned to determine what clinical conditions and treatments should be included in pooled-risk arrangements or to influence how plans are administered to make them cost-effective and socially beneficial (
80). When we also consider the fact that individuals with severe mental disorders are not often direct purchasers, it is clear that espousing choice as a positive attribute of public-sector managed behavioral health care can be a farce.
The wrong theory and the wrong population. An analysis of public-sector managed care for persons with severe mental illness leads to the question of whether it is the wrong model or whether it is applied to the wrong population or both. Are adequate services being delivered to the most vulnerable of populations in an efficient, cost-effective way?
Managed care operates within an entrenched American system in which health insurance is tied to employment, except in certain instances in which medical care is provided as part of welfare or disability systems. This tie to private enterprise or to political, state-specific policies places certain populations at higher risk, regardless of any improved efficiencies under managed care. Under health insurance tied to employment, the majority of enrollees are relatively healthy, not those most vulnerable to severe mental illness. Managed care techniques of gatekeeping and utilization management are most suited to reducing unnecessary services for those with mild or moderate mental illness (
83), while individuals with severe mental illness are typically underserved (
5).
The employer's role in determining availability of medical care also muddies the relationship between managed care structures for managing and delivering services and the benefits packages available to subscribers. The most common benefits structure within managed care is counterintuitive to standard insurance theory—that catastrophic or high-end services should be covered by insurance, promoting consumer cost-sharing for the frequently used, low-end services and financially protecting consumers from the more costly but rare services. In most behavioral health plans, managed care covers the low-frequency, low-intensity patient; benefit limitations reduce coverage for high-frequency and high-need users.
Managed care may be applying these employer-based models to the wrong population. Under the new models, the most vulnerable individuals, and those for whom insurance should offer protection, remain at risk. Medicaid programs have a preponderance of persons who need high-intensity, specialty mental health care. The prevalence of psychiatric disorders in Medicaid programs is often four to five times higher than in the private sector; in employed populations, mental health services are used by less than 10 percent of the population (
14,
89).
In many ways, managed care for behavioral health services is a blunt instrument. Its incentives do not easily translate to mentally ill individuals whose care is publicly financed and who are often both poor and without supports. Managed care theoretically could increase flexibility in delivering needed benefit packages, but short-term contracts and emphasis on reduced costs provide little incentive for doing so. A system in which choice is limited, care is managed to decrease costs, and continuity is threatened is particularly troublesome for individuals with socially stigmatized, poorly understood illnesses that have traditionally been treated outside of standard medical practice settings. Whether such an approach will be an improvement over deinstitutionalization remains to be seen.