Do provider service networks result in lower expenditures compared with HMOs or primary care case management in Florida's Medicaid program?
OBJECTIVE
To determine the impact of Florida's Medicaid Demonstration 4 years post-implementation on per member per month (PMPM) Medicaid expenditures and whether receiving care through HMOs versus provider service networks (PSNs) in the Demonstration was associated with PMPM expenditures.


METHODS
Florida Medicaid claims from two fiscal years prior to implementation of the Demonstration (FY0405, FY0506) and the first four fiscal years after implementation (FY0607-FY0910) from two urban Demonstration counties and two urban non-Demonstration counties.


METHODS
A difference-in-difference approach was used to compare changes in enrollee expenditures before and after implementation of the Demonstration overall and specifically for HMOs and PSNs.


METHODS
Claims data were extracted for enrollees in the Demonstration and non-Demonstration counties and collapsed into monthly amounts (N = 26,819,987 person-months).


RESULTS
Among SSI enrollees, the Demonstration resulted in lower increases in PMPM expenditures over time ($40) compared with the non-Demonstration counties ($186), with Demonstration PSNs lowering PMPM expenditures by $7 more than HMOs. Savings were also seen among TANF enrollees but to a lesser extent.


CONCLUSIONS
The Medicaid Demonstration in Florida appears to result in lower PMPM expenditures. Demonstration PSNs generated slightly greater reductions in expenditures compared to Demonstration HMOs. PSNs appear to be a promising model for delivering care to Medicaid enrollees.
Department of Health Services Research, Management and Policy, College of Public Health and Health Professions, University of Florida, Gainesville, FL.
Jeffrey S
JS
Harman
Allyson G
AG
Hall
Christy H
CH
Lemak
R Paul
RP
Duncan
D000293:Adolescent; D000328:Adult; D000368:Aged; D019090:Case Management / Q000191:economics*; D002648:Child; D002675:Child, Preschool; D005260:Female; D005431:Florida; D005102:Health Expenditures; D006279:Health Maintenance Organizations / Q000191:economics*; D006801:Humans; D007223:Infant; D008297:Male; D008484:Medicaid; D008875:Middle Aged; D011320:Primary Health Care / Q000191:economics*; D014481:United States; D055815:Young Adult
Administrative data uses; Medicaid; health care costs; health care organizations and systems