Nationwide estimates of medication therapy management delivery under the Medicare prescription drug benefit

Racial and ethnic disparities related to the Medicare Part D Medication Therapy Management Program

Medicare's Part D Medication Therapy Management (MTM) programs serve approximately 4.5 million eligible beneficiaries. Prior research suggested that the thresholds to enter Part D MTM programs would disproportionately favor White beneficiaries compared with Black or Hispanic beneficiaries. This article summarizes those initial studies and compares the results with more recent analyses of racial and ethnic differences in MTM program enrollment, which, in general, show higher odds of MTM enrollment for minority beneficiaries compared with White beneficiaries. Disparities in the utilization of comprehensive medication review (CMR), a core MTM service, are also discussed. Although trends vary, disparities exist for various minority groups. For example, Black beneficiaries and Hispanic beneficiaries are less likely to be offered a CMR compared with White beneficiaries. Additionally, minority (Asian, Hispanic, and North American Native) beneficiaries are less likely to receive a CMR after being offered the service compared with White beneficiaries. Black, Hispanic, and Asian beneficiaries are more likely than White beneficiaries to have a longer duration between MTM enrollment and CMR offer. There is also a distinct difference in the type of pharmacist (ie, plan pharmacist, MTM vendor pharmacist, or community pharmacist) completing the CMR for certain racial and ethnic groups. For example, compared with White beneficiaries, Black beneficiaries were less likely to receive a CMR from a community pharmacist, whereas Asian beneficiaries were more likely.

Comprehensive Medication Review Completion Rates and Disparities After Medicare Star Rating Measure

Importance

Comprehensive medication reviews (CMRs) are offered to qualifying US Medicare beneficiaries annually to optimize medication regimens and therapeutic outcomes. In 2016, Medicare adopted CMR completion as a Star Rating quality measure to encourage the use of CMRs.

Objective

To examine trends in CMR completion rates before and after 2016 and whether racial, ethnic, and socioeconomic disparities in CMR completion changed.

Design, Setting, and Participants

This observational study using interrupted time-series analysis examined 2013 to 2020 annual cohorts of community-dwelling Medicare beneficiaries aged 66 years and older eligible for a CMR as determined by Part D plans and by objective minimum eligibility criteria. Data analysis was conducted from September 2022 to February 2024.

Exposure

Adoption of CMR completion as a Star Rating quality measure in 2016.

Main Outcome and Measures

CMR completion modeled via generalized estimating equations.

Results

The study included a total of 561 950 eligible beneficiaries, with 253 561 in the 2013 to 2015 cohort (median [IQR] age, 75.8 [70.7-82.1] years; 90 778 male [35.8%]; 6795 Asian [2.7%]; 24 425 Black [9.6%]; 7674 Hispanic [3.0%]; 208 621 White [82.3%]) and 308 389 in the 2016 to 2020 cohort (median [IQR] age, 75.1 [70.4-80.9] years; 126 730 male [41.1%]; 8922 Asian [2.9%]; 27 915 Black [9.1%]; 7635 Hispanic [2.5%]; 252 781 White [82.0%]). The unadjusted CMR completion rate increased from 10.2% (7379 of 72 225 individuals) in 2013 to 15.6% (14 185 of 90 847 individuals) in 2015 and increased further to 35.8% (18 376 of 51 386 individuals) in 2020, in part because the population deemed by Part D plans to be MTM-eligible decreased by nearly half after 2015 (90 487 individuals in 2015 to 51 386 individuals in 2020). Among a simulated cohort based on Medicare minimum eligibility thresholds, the unadjusted CMR completion rate increased but to a lesser extent, from 4.4% in 2013 to 12.6% in 2020. Compared with White beneficiaries, Asian and Hispanic beneficiaries experienced greater increases in likelihood of CMR completion after 2016 but remained less likely to complete a CMR. Dual-Medicaid enrollees also experienced greater increases in likelihood of CMR completion as compared with those without either designation, but still remained less likely to complete CMR.

Conclusion and Relevance

This study found that adoption of CMR completion as a Star Rating quality measure was associated with higher CMR completion rates. The increase in CMR completion rates was achieved partly because Part D plans used stricter eligibility criteria to define eligible patients. Reductions in disparities for eligible Asian, Hispanic, and dual-Medicaid enrollees were seen, but not eliminated. These findings suggest that quality measures can inform plan behavior and could be used to help address disparities.

Effects of Medicare Part D medication therapy management on racial/ethnic disparities in adherence to antidementia medications among patients with Alzheimer's disease and related dementias: An observational study

Background

Evidence is sparse on the effects of Medicare medication therapy management (MTM) on racial/ethnic disparities in medication adherence among patients with Alzheimer's disease and related dementias.

Objectives

This study examined the Medicare MTM program's effects on racial/ethnic disparities in the adherence to antidementia medications among patients with Alzheimer's disease and related dementias.

Methods

This is a retrospective analysis of 100% of 2010-2017 Medicare Parts A, B, and D data linked to Area Health Resources Files. The study outcome was nonadherence to antidementia medications, and intervention was defined as new MTM enrollment in 2017. Propensity score matching was conducted to create intervention and comparison groups with comparable characteristics. A difference-in-differences model was employed with logistic regression, including interaction terms of dummy variables for the intervention group and racial/ethnic minorities.

Results

Unadjusted comparisons revealed that Black, Hispanic, and Asian/Pacific Islander patients were more likely to be nonadherent than non-Hispanic White (White) patients in 2016. Differences in odds of nonadherence between Black and White patients among the intervention group were lower in 2017 than in 2016 by 27% (odds ratios [OR]: 0.73, 95% confidence interval [CI]: 0.65-0.82). A similar lowering was seen between Hispanic and White patients by 26% (OR: 0.74, 95% CI: 0.63-0.87). MTM enrollment was associated with reduced disparities in nonadherence for Black-White patients of 33% (OR: 0.67, 95% CI: 0.57-0.78) and Hispanic-White patients of 19% (OR: 0.81, 95% CI: 0.67-0.99).

Discussion

The Medicare MTM program was associated with lower disparities in adherence to antidementia medications between Black and White patients, and between Hispanic and White patients in the population with Alzheimer's disease and related dementias.

Conclusions

Expanding the MTM program may particularly benefit racial/ethnic minorities in Alzheimer's disease and related dementia care.

Impact of medication therapy management programs on potentially inappropriate medication use in older adults: A systematic review

BACKGROUND

The use of potentially inappropriate medications (PIMs) is prevalent, costly, and harmful for older adults. These medications are to be avoided among older adults because they generally have (1) a high risk of adverse events in this population and/or (2) limited evidence of benefits in the presence of safer or more effective alternatives. Medication therapy management (MTM) programs can help address PIM use; however, there has not been a synthesis of studies examining the impact of MTM programs on PIM use.

OBJECTIVE

To review published literature evaluating the impact of MTM on PIM use in older adults.

METHODS

A systematic literature review was conducted in accordance with the Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines using MEDLINE (PubMed) studies were included if they (1) had a Medicare population, (2) were based in the United States, (3) examined an MTM program (ie, used the term "medication therapy management"), (4) focused on the impact of MTM programs on PIM use as the primary outcome, (5) had a randomized controlled trial or an observational study design, and (6) were available in English.

RESULTS

Of 221 articles identified, 31 full-text articles were assessed, and 7 met all inclusion and exclusion criteria. The studies took place in various settings, ranging from single-site tertiary medical centers to multisite outpatient clinics, community pharmacies, and nationwide telehealth MTM providers. Patient populations were majority female sex (ranging from 61% to 71%) and majority White (ranging from 81% to 94%), with a mean age of 73 to 78 years. In 5 of the 7 studies, MTM reduced the use of PIMs; however, 3 did not adjust for confounding or apply a comparator group. Measurement of MTM impacts on PIM use varied across studies. Patient-level and plan-level studies mostly assessed shorter-term PIM usage reduction (4 months or less), whereas studies performed at the provider and institutional level assessed PIM usage reduction trends across consecutive measurement years.

CONCLUSIONS

Based on the current limited evidence, MTM programs in older adults appear to have a positive impact on reducing PIM use. However, evidence was limited by study design, the lack of consistency in outcome measures, and a short follow-up period. Future work should adjust for confounding, apply comparator groups, include longer-term outcomes, and develop a core set of measures that can be consistently applied across studies.

Challenges in Deprescribing among Older Adults in Post-Acute Care Transitions to Home

OBJECTIVES

Medications with a higher risk of harm or that are unlikely to be beneficial are used by nearly all older patients in home health care (HHC). The objective of this study was to understand stakeholders' perspectives on challenges in deprescribing these medications for post-acute HHC patients.

DESIGN

Qualitative individual interviews were conducted with stakeholders involved with post-acute deprescribing.

SETTING AND PARTICIPANT

Older HHC patients, HHC nurses, pharmacists, and primary/acute care/post-acute prescribers from 9 US states participated in individual qualitative interviews.

MEASURES

Interview questions were focused on the experience, processes, roles, training, workflow, and challenges of deprescribing in hospital-to-home transitions. We used the constant comparison approach to identify and compare findings among patient, prescriber, and pharmacist and HHC nurse stakeholders.

RESULTS

We interviewed 9 older patients, 11 HHC nurses, 5 primary care physicians (PCP), 3 pharmacists, 1 hospitalist, and 1 post-acute nurse practitioner. Four challenges were described in post-acute deprescribing for HHC patients. First, PCPs' time constraints, the timing of patient encounters after hospital discharge, and the lack of prioritization of deprescribing make it difficult for PCPs to initiate post-acute deprescribing. Second, patients are often confused about their medications, despite the care team's efforts in educating the patients. Third, communication is challenging between HHC nurses, PCPs, specialists, and hospitalists. Fourth, the roles of HHC nurses and pharmacists are limited in care team collaboration and discussion about post-acute deprescribing.

CONCLUSIONS AND IMPLICATIONS

Post-acute deprescribing relies on multiple parties in the care team yet it has challenges. Interventions to align the timing of deprescribing and that of post-acute care visits, prioritize deprescribing and allow clinicians more time to complete related tasks, improve medication education for patients, and ensure effective communication in the care team with synchronized electronic health record systems are needed to advance deprescribing during the transition from hospital to home.

ChatGPT in pharmacy practice: a cross-sectional exploration of Jordanian pharmacists' perception, practice, and concerns

OBJECTIVES

The purpose of this study is to find out how much pharmacists know and have used ChatGPT in their practice. We investigated the advantages and disadvantages of utilizing ChatGPT in a pharmacy context, the amount of training necessary to use it proficiently, and the influence on patient care using a survey.

METHODS

This cross-sectional study was carried out between May and June 2023 to assess the potential and problems that pharmacists observed while integrating chatbots powered by AI (ChatGPT) in pharmacy practice. The correlation between perceived benefits and concerns was evaluated using Spearman's rho correlation due to the data's non-normal distribution.Any pharmacists licensed by the Jordanian Pharmacists Association were included in the study. A convenient sampling technique was used to choose the participants, and the study questionnaire was distributed utilizing an online medium (Facebook and WhatsApp). Anyone who expressed interest in taking part was given a link to the study's instructions so they may read them before giving their electronic consent and accessing the survey.

RESULTS

The potential advantages of ChatGPT in the pharmacy practice were widely acknowledged by the participants. The majority of participants (69.9%) concurred that educational material about pharmacy items or therapeutic areas can be provided using ChatGPT, with 66.9% of respondents believing that ChatGPT is a machine learning algorithm. Concerns about the accuracy of AI-generated responses were also prevalent. More than half of the participants (55.7%) raised the possibility that AI systems such as ChatGPT could pick up on and replicate prejudices and discriminatory patterns from the data they were trained on. Analysis shows a statistically significant positive link, albeit a minor one, between the perceived advantages of ChatGPT and its drawbacks (r = 0.255, p < 0.001). However, concerns were strongly correlated with knowledge of ChatGPT. In contrast to those who were either unsure or had not heard of ChatGPT (64.2%), individuals who had heard of it were more likely to have strong concerns (79.8%) (p = 0.002). Finally, the results show a statistically significant association between the frequency of ChatGPT use and positive perceptions of the tool (p < 0.001).

CONCLUSIONS

Although ChatGPT has shown promise in health and pharmaceutical practice, its application should be rigorously regulated by evidence-based law. According to the study's findings, pharmacists support the use of ChatGPT in pharmacy practice but have concerns about its use due to ethical reasons, legal problems, privacy concerns, worries about the accuracy of the data generated, data learning, and bias risk.

Racial and ethnic disparities in Medicare Part D medication therapy management services utilization

Background

The Medicare Part D medication therapy management (MTM) program has positive effects on medication and health service utilization. However, little is known about its utilization, much less so about the use among racial and ethnic minorities.

Objective

To examine MTM service utilization among older Medicare beneficiaries and to identify any racial and ethnic disparity patterns.

Methods

A retrospective cross-sectional analysis of 2017 Medicare administrative data, linked to the Area Health Resources Files. Fourteen outcomes related to MTM service nature, initiation, quantity, and delivery were examined using logistic, negative binomial, and Cox proportional hazards regression models.

Results

Racial and ethnic disparities were found with varying patterns across outcomes. For example, compared with White patients, the odds of opting out of MTM were 8% higher for Black patients (odds ratio [OR] = 1.08, 95% confidence interval [CI] = 1.03-1.14), 57% higher for Hispanic patients (OR = 1.57, 95% CI = 1.42-1.72), and 57% higher for Asian patients (OR = 1.57, 95% CI = 1.33-1.85). The odds of continuing MTM from the previous years were 12% lower for Black patients (OR = 0.88, 95% CI = 0.86-0.90) and 3% lower for other patients (OR = 0.97, 95% CI = 0.95-0.99). In addition, the probability of being offered a comprehensive medication review (CMR) after MTM enrollment was 9% lower for Hispanic patients (hazard ratio [HR] = 0.91, 95% CI = 0.85-0.97), 9% lower for Asian patients (HR = 0.91, 95% CI = 0.87-0.94), and 3% lower for other patients (HR = 0.97, 95% CI = 0.95-0.99). Hispanic and Asian patients were more likely to have someone other than themselves receive a CMR.

Conclusions

Racial and ethnic disparities in MTM service utilization were identified. Although the disparities in specific utilization outcomes vary across racial/ethnic groups, it is evident that these disparities exist and may result in vulnerable communities not fully benefiting from the MTM services. Causes of the disparities should be explored to inform future reform of the Medicare Part D MTM program.

Predictors of Receipt of Comprehensive Medication Reviews in Older Adults

BACKGROUND

Polypharmacy is highly prevalent among older adults. This study's purpose was to provide nationally representative estimates of self-reported comprehensive medication review (CMR) receipt among older adults and describe factors associated with their receipt, as CMRs are available through the Medicare Part D program.

METHODS

This cross-sectional study used data from the National Poll on Healthy Aging (NPHA), a nationally representative online survey of community-dwelling adults aged 50-80, administered in December 2019. Participants included older adults aged 65-80 with any health insurance (n = 960). Outcomes were self-reported CMR receipt, awareness of CMR insurance coverage, and interest in a future CMR with a pharmacist. Sociodemographic and health-related variables were included. Descriptive statistics and multivariable logistic regression with NPHA population sampling weights were used.

RESULTS

Among older adults on 2 or more prescription medications, only 20.8% had received a CMR while 34.3% were interested in a future CMR. Among individuals who had not received a CMR, most (83.4%) were unaware their insurance might cover a CMR. Factors associated with higher odds of receiving a CMR included taking 5 or more prescription medications (adjusted odds ratio [AOR] = 2.6, 95% CI: 1.59-4.38) and reporting food insecurity (AOR = 2.9, 95% CI: 1.07-7.93). Having fair or poor self-reported physical health was associated with lower odds of receiving a CMR (AOR = 0.49, 95% CI: 0.25-0.97).

CONCLUSIONS

Most older adults on 2 or more prescription medications with health insurance had not received a CMR and many were interested in one. Targeted strategies to increase older adults' awareness and receipt of CMRs are warranted.

Comprehensive medication review service by embedded pharmacists in primary care: Innovations and impact

BACKGROUND

Primary care may offer innovations in delivering comprehensive medication reviews (CMRs).

OBJECTIVES

This study aimed to (1) describe innovations to improve delivery and impact of CMR, (2) quantify CMR completion rates and patient satisfaction, and (3) characterize medication changes and impact on medication costs.

PRACTICE DESCRIPTION

Board-certified ambulatory care pharmacists with collaborative practice agreements embedded in primary care provided CMRs in 5 clinics for eligible university prescription plan retirees.

PRACTICE INNOVATION

Innovations included (1) physician review of potential CMR recipient list, (2) use of trained student pharmacists to recruit and set up CMR visits, (3) use of clinical information in a standardized CMR 2-visit approach by embedded pharmacists, and (4) enrollment into disease management programs or referrals to other providers.

EVALUATION METHODS

Data from a retrospective cohort were collected. The CMR completion rate and therapeutic interventions were documented. Prescription fill data were available for 6 months before and after the CMR. An anonymous survey assessed patient satisfaction. Frequencies and descriptive statistics characterized completion rate, interventions, and patient satisfaction. The median cost to the plan of deleted versus added medications and per member per month total drug costs before and after the CMR were compared.

RESULTS

Among 729 beneficiaries screened, 489 were eligible and 223 (46%) received a CMR. There were 388 medication interventions: the most common intervention was to delete medications (41.0%). One in 4 was enrolled into the pharmacists' disease management programs. Individuals reported 4.68 (SD 0.67) of 5 for helpfulness of the CMR. The ratio of median costs for medication deletions versus additions was $1.46 vs. $1.00.

CONCLUSION

Innovations to deliver CMRs capitalized on well-established physician-pharmacist relationships and nonpharmacist personnel to recruit and prepare the intake. Almost half of eligible beneficiaries received a CMR, and the CMRs were impactful for patients and payers. The most prevalent intervention was to discontinue medications for efficacy reasons.

Effects of the Medicare Part D comprehensive medication review on medication adherence among patients with Alzheimer's disease

OBJECTIVE

Older patients with Alzheimer's disease (AD) are challenged with adhering to complex medication regimens. We examined effects of Comprehensive Medication Review (CMR), a required Medicare Part D Medication Therapy Management (MTM) program component, on medication adherence among AD patients.

METHODS

This retrospective study analyzed 100% of 2016-2017 Medicare claims covering the entire United States, linked to Area Health Resources Files. Medicare beneficiaries aged ≥65 years were included. Propensity score matching identified comparable intervention and comparison groups with the intervention defined as receiving a CMR in 2017. A difference-in-differences analysis included in multivariate logistic regressions an interaction term between CMR receipt and year 2017. The outcome measured was nonadherence to diabetes, hypertension and hyperlipidemia medications, with nonadherence defined as proportion of days covered <80% for study medications.

RESULTS

Unadjusted comparisons indicated the proportion of nonadherence for intervention group members decreased from 2016 to 2017 but increased for the comparison group. In adjusted analyses, reduction in medication nonadherence among the intervention group remained higher: odds ratios for the interaction term were 0.62 (95% confidence interval [CI] = 0.54-0.71), 0.54 (95% CI = 0.50-0.58) and 0.50 (95% CI = 0.47-0.53) respectively for diabetes, hypertension and hyperlipidemia medications. This suggests that the likelihood of nonadherence in the intervention group was respectively reduced by 38%, 46% and 50% more than the comparison group.

CONCLUSIONS

CMR was found to reduce nonadherence to diabetes, hypertension and hyperlipidemia medications among older Medicare beneficiaries with AD. This provides evidence that the MTM program is effective for a population with unique medication compliance challenges.

Exploring racial and ethnic disparities in medication adherence among Medicare comprehensive medication review recipients

Background

There has been a lack of evidence on whether there are racial and ethnic disparities in medication nonadherence among individuals receiving comprehensive medication review (CMR), a required component of the Medicare Part D medication therapy management (MTM) services.

Objectives

To explore racial/ethnic disparities in medication nonadherence among older MTM enrollees who received a CMR and to determine how much the identified disparities can be explained by observed characteristics.

Methods

The retrospective study used 100% of the 2017 Medicare claims, including MTM data. Linked Area Health Resources Files provided community characteristics. Nonadherence was defined as proportion of days covered <80%, and was measured for diabetes, hypertension, and hyperlipidemia medications. Racial/ethnic disparities were examined by logistic regressions that included racial/ethnic minority dummy variables. A nonlinear Blinder-Oaxaca decomposition method was applied to decompose the identified disparities.

Results

Compared with non-Hispanic Whites (Whites), Blacks were respectively 39% (odds ratio [OR] = 1.39, 95% confidence interval [CI] = 1.33–1.45), 27% (OR = 1.27, 95% CI = 1.22–1.32), and 43% (OR = 1.43, 95% CI = 1.39–1.47) more likely to be nonadherent to diabetes, hypertension, and hyperlipidemia medications; Hispanics were 20% (OR = 1.20, 95% CI = 1.14–1.27) more likely to be nonadherent to hyperlipidemia medications. The total portion of disparity explained was 13.42%, 7.66%, 14.87%, and 10.69% respectively for disparities in Black-White (B–W) diabetes, B–W hypertension, B–W hyperlipidemia, and Hispanic-White hyperlipidemia. The top three contributors were the proportion of married-couple families, census region, and male gender.

Conclusions

A lower level of community affluence and social support, regional variations, and a lower proportion of males in Blacks and Hispanics may contribute to the disparities in medication nonadherence. The large unexplained portion of the disparity attests that nonadherence is a complex issue. The Medicare MTM program needs to implement measures to reduce disparities in medication adherence.

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This retrospective study used 100% of the 2017 Medicare claims including MTM data.

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Racial/ethnic disparity in medication adherence was identified among CMR recipients.

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Blacks were more likely than Whites to be nonadherent to all medications studied.

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Hispanics were more likely than Whites to be hyperlipidemia medication nonadherent.

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Observed characteristics explained close to 15% of the identified disparity.

Primary healthcare policy and vision for community pharmacy and pharmacists in the United States

The United States (US) has a complex healthcare system with a mix of public, private, nonprofit, and for-profit insurers, healthcare institutions and organizations, and providers. Unlike other developed countries, there is not a single payer healthcare system or a national pharmaceutical benefits scheme/plan. Despite spending over USD 10,000 per capita in healthcare, the US is among the worst performers compared to other developed countries in outcomes including life expectancy at birth, infant mortality, safety during childbirth, and unmanaged chronic conditions (e.g., asthma, diabetes). Primary care is delivered by physicians and advanced practice providers (i.e., nurse practitioners and physician assistants) in a variety of settings including large health systems, federally qualified health centers or free clinics that provide care to the underserved, or specific facilities for veterans or American Indian and Alaska native peoples. Since 2010, primary care delivery has shifted toward providing patient-centered, coordinated, comprehensive care focused on providing proactive, rather than reactive, population health management, and on the quality, versus volume, of care. Community pharmacy comprises a mix of independently owned, chain, supermarket and mass merchant pharmacies. Community pharmacies provide services such as immunizations, medication therapy management, medication packaging, medication synchronization, point-of-care testing and, in specific states where legislation has been passed, hormonal contraception, opioid reversal agents, and smoking cessation services. There has been criticism regarding the lack of standard terminology for services such as medication synchronization and medication therapy management, their components and how they should be provided, which hampers comparability across studies. One of the main challenges for pharmacists in the US is the lack of provider status at the federal level. This means that pharmacists are not allowed to use existing fee-for-service health insurance billing codes to receive reimbursement for non-dispensing services. In addition, despite there being regulatory infrastructure in multiple states, the extent of service implementation is either low or unknown. Research found that pharmacists face numerous barriers when providing some of these services. State fragmentation and the lack of a single pharmacy organization and vision for the profession are additional challenges.

Medication Therapy Management: Current Challenges

Medication therapy management (MTM) services have evolved as a means for pharmacists and other providers to assist patients and caregivers in improving therapeutic outcomes and reducing health care expenditures. More than a decade has passed since the Medicare Modernization Act of 2003 provided pharmacists with the opportunity to deliver MTM services to Medicare beneficiaries. MTM continues to offer pharmacists the opportunity to use their knowledge; yet, pharmacists have reported challenges with service delivery. Identifying the challenges that affect MTM services in pharmacy practice is necessary in order to seek improvement to MTM delivery. This narrative review explores the current challenges pharmacists face with MTM delivery, summarizes potential solutions for addressing challenges, and seeks to incite further debate, service reconfiguration, and ultimately service improvement of pharmacist-provided MTM services.