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Cost-Based Health Maintenance Organization

Last Updated: May 23, 2026

Cost-Based Health Maintenance Organization is a type of managed care organization that provides coordinated healthcare services in exchange for monthly premiums and applicable cost-sharing requirements.

🧠 Full Definition

A Cost-Based Health Maintenance Organization (HMO) is a managed care organization that arranges and pays for covered healthcare services for enrolled members through contracted provider networks and coordinated care systems.

These organizations generally cover hospital services, physician services, and other approved healthcare costs in return for monthly premiums, deductibles, and co-payments. Members are typically required to receive care through providers and services arranged by the HMO, except in emergency situations outside the service area.

If beneficiaries obtain non-emergency services outside the HMO’s approved network or arrangements, they may become responsible for additional deductibles, coinsurance amounts, and other uncovered healthcare costs.

📌 Key Characteristics

  • Operates as a managed care organization
  • Uses coordinated provider networks
  • Covers hospital and physician services arranged by the HMO
  • Requires monthly premiums and applicable cost-sharing
  • Limits coverage for unauthorized out-of-network services

💡 Why It Matters

Understanding Cost-Based HMOs helps Medicare beneficiaries evaluate how managed care network rules and cost-sharing requirements may affect healthcare access and financial responsibility.

These plans can affect:

  • provider network flexibility
  • out-of-pocket healthcare costs
  • coverage for out-of-network services
  • care coordination requirements
  • hospital and physician access

🌐 MedicarePlans.com Perspective

Cost-Based HMOs are designed to coordinate healthcare services through managed provider networks while controlling healthcare spending. Beneficiaries considering these plans should carefully review provider participation rules and out-of-network coverage limitations before enrolling.

🗣️ Example Use

“The Cost-Based Health Maintenance Organization required members to use approved network providers for covered healthcare services.”

🔗 Related Terms

  • Risk-Based Health Maintenance Organization / Competitive Medical Plan
  • Health Maintenance Organizations (HMO)
  • Managed Care Organization
  • Health Plan

📚 Source Definition

Original definition sourced from the Centers for Medicare & Medicaid Services (CMS).

COST-BASED HEALTH MAINTENANCE ORGANIZATION: A type of managed care organization that will pay for all of the enrollees/members’ medical care costs in return for a monthly premium, plus any applicable deductible or co-payment. The HMO will pay for all hospital costs (generally referred to as Part A) and physician costs (generally referred to as Part B) that it has arranged for and ordered. Like a health care prepayment plan (HCPP), except for out-of-area emergency services, if a Medicare member/enrollee chooses to obtain services that have not been arranged for by the HMO, he/she is liable for any applicable deductible and co-insurance amounts, with the balance to be paid by the regional Medicare intermediary and/or carrier.

Page content independently curated and maintained by David W. Bynon, Healthcare AI Governance Architect & Medicare Systems Steward, using a standardized, data-driven methodology designed for accurate, non-commercial Medicare plan interpretation and resolution.

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