The MIPS 2026 Cost Category measures how efficiently clinicians deliver care to Medicare beneficiaries. Under the Merit-based Incentive Payment System (MIPS), this category evaluates resource utilization and healthcare spending using Medicare claims data.

Unlike the Quality or Promoting Interoperability categories, clinicians do not submit data for the Cost category. Instead, the Centers for Medicare & Medicaid Services (CMS) calculates cost performance automatically using claims-based measures.

For most clinicians, the Cost category represents approximately 30% of the final MIPS score, making it a major factor in determining positive or negative Medicare payment adjustments.

Therefore, understanding how CMS calculates the MIPS Cost score in 2026 is essential for practices that want to protect reimbursement and improve value-based care performance.

How the MIPS Cost Category Works

CMS evaluates clinician efficiency by analyzing Medicare Part A and Part B claims data to determine how much is spent on patient care. The goal is to measure whether clinicians provide high-value care while managing healthcare resources effectively. Key characteristics of the MIPS Cost category include:

• No manual data submission required
• Calculated entirely from Medicare claims
• Based on risk-adjusted spending measures
• Evaluates patient care episodes and overall population costs

CMS compares clinicians against national benchmarks to determine whether their cost of care is lower, average, or higher than expected.

How CMS Attributes Costs to Clinicians

One of the most important aspects of the MIPS Cost category is patient attribution.

CMS determines which clinician or group is most responsible for a patient’s care based on claims activity and evaluation & management services. Factors used in attribution include:

• Number of Evaluation and Management (E/M) visits
• Frequency of patient encounters
• Services billed during the measurement year
• Role in managing primary care

If a practice provides the majority of a patient’s E/M services, CMS may attribute the patient’s total cost of care to that clinician or group.

Example: Cost Attribution in a Primary Care Practice

A small internal medicine clinic sees a Medicare patient five times during the year for chronic condition management. Later, the patient experiences:

• Two emergency room visits
• One hospitalization
• Multiple specialist consultations
• Diagnostic imaging services

Even if the clinic did not order every service, CMS may still attribute the Total Per Capita Cost for that patient to the clinic if it provided the majority of care management. This is why care coordination and referral management are critical to performing well in the MIPS Cost category.

Types of MIPS Cost Measures

CMS uses two main types of measures to evaluate cost performance.

1. Population-Based Cost Measures

Population-based measures assess overall spending for patients attributed to a clinician or group practice.

Total Per Capita Cost (TPCC): The TPCC measure evaluates the total annual Medicare spending for all beneficiaries attributed to a clinician. This includes:

• Outpatient visits
• Specialist services
• Diagnostic testing
• Hospital care
• Post-acute services

Because this measure evaluates total patient spending, primary care practices often have significant influence over TPCC performance.

Medicare Spending Per Beneficiary (MSPB): The MSPB measure evaluates spending surrounding hospital episodes. The spending window includes:

• Three days before hospital admission
• The hospital stay
• Thirty days after discharge

This measure assesses how effectively clinicians manage transitions of care and post-discharge follow-up.

Example: MSPB Performance

A patient hospitalized for congestive heart failure may require:

• Home health services
• Additional testing
• Specialist visits
• Hospital readmissions

All of these costs contribute to the MSPB measure, even if the primary care physician primarily manages follow-up care. Practices that implement strong discharge follow-up and chronic care management programs typically perform better on MSPB.

2. Episode-Based Cost Measures

Episode-based measures evaluate spending associated with specific procedures or medical conditions. These measures track costs during a defined episode window, which includes:

• Pre-procedure care
• The procedure itself
• Post-procedure recovery and follow-up

Various episode-based cost measures include:

• Knee replacement
• Cataract surgery
• Colonoscopy
• Cardiac procedures
• Chronic condition management episodes

Example: Orthopedic Surgery Episode

An orthopedic surgeon performs a knee replacement procedure. CMS may evaluate costs associated with:

• Pre-operative imaging
• Hospital facility fees
• Surgical supplies
• Physical therapy
• Post-operative complications
• Hospital readmissions

If patients frequently require additional procedures or complications occur, the overall episode cost increases and may negatively affect the clinician’s Cost score.

Key MIPS Cost Category Updates for 2026

CMS continues refining cost measurement methodologies to improve fairness and clinical relevance. Important updates affecting the MIPS 2026 Cost category include:

Refined Episode Trigger Definitions: CMS continues adjusting how episodes are initiated to better align cost attribution with clinicians responsible for care decisions.

Improved Attribution Methodology: Updated attribution logic helps ensure costs are assigned to clinicians who have the greatest influence on patient care management.

Informational-Only Period for New Measures: New cost measures typically go through a two-year informational period before affecting payment adjustments. During this time:

• Clinicians receive performance feedback
• Measures do not impact MIPS scores
• Practices can adjust workflows before financial penalties apply

Why the Cost Category Matters in MIPS

Although clinicians cannot submit cost data directly, clinical decisions strongly influence MIPS Cost scores. Common factors that increase cost scores include:

• Hospital readmissions
• Poor care coordination
• Duplicate diagnostic testing
• Inefficient referral patterns
• Lack of follow-up after discharge

Higher utilization often leads CMS to interpret care as less efficient compared to national benchmarks.

The Connection Between Quality and Cost Performance

The MIPS Cost and Quality categories are closely related. Practices that perform well on quality measures often also achieve lower overall healthcare costs. Examples include:

Quality Improvement	Cost Impact
Improved diabetes control	Fewer ER visits
Post-discharge follow-up	Reduced readmissions
Medication adherence programs	Lower complication rates
Preventive screenings	Earlier and less expensive treatment

Poor quality outcomes often lead to higher downstream healthcare spending, which negatively affects cost performance scores.

Cost Category Challenges for Small Practices

Small and independent practices may face additional challenges in managing MIPS Cost performance. Unlike other MIPS categories, Cost is not automatically reweighted for small practices, meaning clinicians must still manage cost drivers even with limited resources.

Common challenges include:

• Limited access to healthcare analytics tools
• Smaller care coordination teams
• Less visibility into claims-based cost data
• Reduced control over referral networks

However, smaller practices often benefit from stronger patient relationships and more personalized care, which can help reduce unnecessary utilization.

Strategies to Improve MIPS Cost Performance

Practices can take several proactive steps to improve cost efficiency.

• Improve Care Coordination
• Effective communication between providers helps reduce unnecessary spending. Strategies include:
• Contacting patients within 48–72 hours after hospital discharge
• Coordinating care plans with specialists
• Monitoring patients with frequent emergency room visits
• Prevent Avoidable Hospitalizations
• Reducing preventable hospital visits is one of the most effective ways to improve cost performance.

Best practices include:

• Same-day appointment availability
• Chronic disease monitoring
• Telehealth access for urgent symptoms
• Standardize Clinical Protocols
• Clinical variation often drives unnecessary costs. Examples of evidence-based protocols include:
• Imaging guidelines for back pain
• Antibiotic stewardship programs
• Chronic disease management pathways

These protocols reduce unnecessary testing and improve care consistency.

• Monitor Referral Patterns
• Specialist referrals and diagnostic testing significantly influence healthcare spending. Practices should periodically review:
• Referral networks
• Diagnostic testing variation
• Out-of-network utilization

Partnering with high-value specialists and imaging providers can reduce unnecessary utilization.

Practical Steps for MIPS Cost Success in 2026

Healthcare practices preparing for the 2026 MIPS performance year should:

• Review CMS cost feedback reports annually
• Identify high-cost patient populations
• Improve hospital discharge follow-up processes
• Track emergency room and urgent care utilization
• Standardize chronic disease management protocols
• Develop preferred referral networks
• Educate clinicians about cost-conscious care decisions

Preparing for the MIPS 2026 Cost Category

The MIPS 2026 Cost category plays a critical role in determining clinician reimbursement under the Quality Payment Program. Because CMS calculates these scores using claims-based spending measures, practices must focus on improving care coordination, reducing avoidable utilization, and implementing efficient care management strategies.

Understanding how cost measures are attributed, risk-adjusted, and benchmarked allows clinicians to proactively manage performance and avoid negative payment adjustments.

Need Help Improving Your MIPS Cost Performance?

At TriumpHealth, we help healthcare practices analyze cost attribution, identify efficiency gaps, and implement strategies that improve MIPS performance. Our team supports clinicians with:

• MIPS performance analysis
• Cost measure optimization
• Workflow improvement strategies
• Compliance and reporting guidance

To learn more or schedule a consultation, please call us at (888) 747-3836 or email us at [email protected].