Contrasts in HMO and fee-for-service performance

Area of Science:

• Health Services Research
• Healthcare Management
• Public Health Policy

Background:

• Medicaid managed care organizations (MCOs) aim to control costs and improve access.
• Understanding performance variations among different MCO structures is crucial for policy and practice.
• Fee-for-service (FFS) serves as a traditional benchmark for healthcare delivery.

Purpose of the Study:

• To compare the performance of 10 Health Maintenance Organizations (HMOs) against the FFS system for Medicaid beneficiaries.
• To examine utilization differences among various HMO organizational types and payment models.
• To assess enrollment selectivity, service utilization, care accessibility, and patient satisfaction.

Main Methods:

• Comparative analysis of 10 HMO plans and the FFS system within the Medicaid population.
• Categorization of HMOs by organizational structure and provider payment methods.
• Evaluation across four key performance areas: enrollment selectivity, service utilization, accessibility, and satisfaction.

Main Results:

• The primary significant difference observed was in hospital utilization rates.
• Group-practice HMOs demonstrated significantly lower hospital utilization compared to FFS.
• Foundation model HMOs did not show a significant difference in hospital utilization compared to FFS.
• No significant differences were found in previous health status, ambulatory care use, care accessibility, or patient satisfaction between HMOs and FFS.

Conclusions:

• HMO organizational structure, particularly group-practice models with salaried physicians, appears more influential on hospital utilization than capitation payment alone.
• Capitation payment alone does not appear to drive substantial changes in healthcare utilization for Medicaid populations.
• HMOs and FFS systems demonstrate comparable performance in areas of ambulatory care, accessibility, and patient satisfaction for Medicaid beneficiaries.