Kansas Medicaid Buy-In Participants Continue to Earn More and Cost Less

January, 2013


Number 14, January 2013

Kansas Medicaid Buy-In Participants Continue to Earn More and Cost Less


Authors’ Note: This Policy Brief is an update to Policy Both Number 12 published in March 2009, providing newer data on earnings, taxes and expenditures for this population. 


The Kansas Medicaid Buy-In program, Working Healthy, was implemented in July of 2002 with the goal of providing an incentive for Kansans with disabilities to work or work more. To do so, Working Healthy allows Kansans with disabilities to maintain Medicaid coverage even if their earnings and assets exceed those generally allowed by Medicaid, with the requirement of paying a premium for that coverage when countable income exceeds 100% of the federal poverty level. When the program started, advocates, providers, policy makers and consumers all hoped that enrollees would earn more, and thus pay more taxes. Some people were concerned, however, about the cost of expanding Medicaid to an additional group of people. 

This Policy Brief summarizes research findings regarding the earnings, taxes paid, and Medicaid expenditures of people enrolled in Working Healthy (Kurth, Fall, & Hall, 2011). In a nutshell, participants report increases in hourly wages, while Medicaid costs for those continuously enrolled in the Buy-In decreased over time.


Both administrative and self-reported survey data were used to examine trends in earnings and medical expenditures. University of Kansas evaluation staff has conducted annual Satisfaction Surveys with Working Healthy participants since the program's inception, allowind for repeated measures of self-reported income levels. In addition, aggregated data from the Kansas Department of Revenue were used to track adjusted gross income and Kansas taxes paid by individuals continuously enrolled in Working Healthy. Finally, Medicaid and Medicare claims data from the Kansas Medicaid Management Information System (MMIS) and the federal Centers for Medicare and Medicaid Services (CMS) were used to analyze per person health care expenditure trends over time.


The annual Satisfaction Survey has queried respondents about their hourly wages and employment experiences. The average self-reported hourly wage from 2007 through 2011 increased from $7.68 to $8.98 (see Figure 1), well exceeding the federal minimum wage. In general, people who remain enrolled in Working Healthy demonstrate consistent increases in income and the amount of state income taxes they pay. Because their earnings are increasing, the percentage of Working Healthy enrollees who pay a premium and the average premium amount paid have also trended upward. At the end of 2011, about 82% of enrollees paid premiums, averaging $77 per month (see Figure 2).

Further, as participants’ personal income and contributions to state revenues via taxes paid increased, medical expenditures for those continuously enrolled in Working Healthy decreased. Adjusting for medical inflation, Medicaid expenditures per person per month for this group declined over time, dropping 41% from 2007 to 2011 (see Figure 3), with the greatest decrease being in outpatient expenditures that include doctor’s visits, case management, attendant and related services.


When the Ticket to Work and Work Incentives Improvement Act (P.L. 106-170) was passed in 1999, establishing an option for states to implement Buy- In programs, one congressional finding listed in the law was that “For individuals with disabilities, the fear of losing health care and related services is one of the greatest barriers keeping the individuals from maximizing their employment, earning potential, and independence.” For participants in Working Healthy, access to Medicaid has allowed them to increase earnings and independence in addition to havingthe opportunity to pay taxes and premiums that offset some of their costs to Medicaid. Numerous studies (e.g., Lynch, Kaplan & Shema, 1997) have demonstrated the relationship between poverty and poor health status. The work presented here shows that, as Kansans with disabilities work more and earn more, their health status may indeed improve, as reflected in decreased medical expenditures.

Figure 1. Mean Hourly Wage of Working Healthy Participants

2007 (n=317): Federal minimum wage = $5.85; Working Healthy mean hourly wage = $7.68

2008 (n=225): Federal minimum wage = $6.55; Working Healthy mean hourly wage = $7.99

2009 (n=381): Federal minimum wage = $7.25; Working Healthy mean hourly wage = $8.68

2010 (n=377): Federal minimum wage = $7.25; Working Healthy mean hourly wage = $8.77

2011 (n=341): Federal minimum wage = $7.25; Working Healthy mean hourly wage = $8.98

From: Kurth, Fall & Hall, 2011.

Data Source: Annual Working Health Program Satisfaction Survey 

Figure 2. Percent of Working Healthy Premium Payers

2007 (N=1022): 66.9% pay premiums

2008 (N=1101): 79.4% pay premiums

2009 (N=1115): 78.3% pay premiums

2010 (N=1183): 76.8% pay premiums

2011 (N=1288): 81.6% pay premiums

Data Source: Kansas Automated Eligibility Child Support Enforcement System (KAECSES)

Figure 3. Medicaid Expenditures for Continuously Enrolled Working Healthy Participants, per Member per Month, 2007-2011 (n=268)

2007: Outpatient costs = $339.28 pmpm and Inpatient costs = $22.01 pmpm

2008: Outpatient costs = $297.60 pmpm and Inpatient costs = $47.34 pmpm

2009: Outpatient costs = $316.22 pmpm and Inpatient costs = $23.95 pmpm

2010: Outpatient costs = $294.52 pmpm and Inpatient costs = $20.88 pmpm

2011: Outpatient costs = $197.46 pmpm and Inpatient costs = $15.68 pmpm

Note: Expenditures were adjusted to 2011 for inflation using the Consumer Price Index for medical services

Data Source: Kansas Medicaid Management Information System (MMIS)


Kurth, N.K., Fall, E.C. , & Hall, J.P. (2011). Working Healthy Data Chartbook 2nd Edition: Evaluation of the Kansas Medicaid Buy-In 2002-2011. Lawrence, KS: University of Kansas Center for Research on Learning. 

Lynch J, Kaplan G, Shema, S. Cumulative impact on sustained economic hardship of physical, cognitive, psychological and social functioning. New England Journal of Medicine 1997; 337(26):1889- 1895.

This Policy Brief is published by the KU-CRL Institute for Health & Disability Policy Studies and the KDHE Division of Health Care Financing.


KU Research & Evaluation Team

Jean P. Hal, Ph.D., Principal Investigator

Noelle K. Kurth, M.S., Senior Research Assistant

Kathleen Ireland, Student Assistant

Kansas Department of Health & Environment

Division of Health Care Finance

Mary Ellen O'Brien Wright, Senior Manager

Nancy Scott, Program Manager

Steve Curtis, Benefits Specialist Team Leader