Demystifying Medicare and Medicaid Reimbursement

Nearly two-thirds of nursing home providers report that Medicaid reimbursement covers less than 80% of the actual cost of care. Eleven percent report less than half. That gap sits underneath almost every financial decision an SNF makes. Here’s how Medicare and Medicaid reimbursement actually works, and what’s changing heading into 2026.

Key Takeaway: Medicare and Medicaid reimbursement are the financial backbone of every SNF, but they work on completely different logic. Medicare pays a fixed daily rate for a limited window under PDPM. Medicaid pays indefinitely but often below the actual cost of care, and a 2025 federal law now sets up $911 billion in Medicaid spending cuts over the next decade. Understanding both systems and where they’re each headed is what separates facilities that stay financially stable from ones that don’t.

Table of Contents

• Understanding Medicare & Medicaid Coverage for SNFs
• Common Reimbursement Challenges & Pitfalls
• Best Practices for Optimizing Reimbursement
• The Future of Medicare & Medicaid Reimbursement
• FAQ

Medicare and Medicaid reimbursement is the financial backbone of every skilled nursing facility. The process is genuinely complex. Regulatory requirements shift, payment models change, and compliance rules keep moving. SNFs that stay informed keep more of what they’re owed. This guide walks through how Medicare and Medicaid reimbursement actually works for SNFs, where the real pitfalls are, and what genuinely improves payouts.

1. Understanding Medicare & Medicaid Coverage for SNFs

1.1 Medicare Coverage in SNFs

Medicare covers short-term skilled nursing care for beneficiaries who meet specific conditions. Coverage breaks into three parts:

• Medicare Part A (Hospital Insurance): Covers up to 100 days of SNF care per benefit period, after a qualifying three-day inpatient hospital stay.
• Medicare Part B (Medical Insurance): Covers certain therapy services and medical equipment outside of the Part A stay.
• Medicare Advantage (Part C): Private plans that now cover more than half of all Medicare beneficiaries nationally, with reimbursement structures that often differ meaningfully from traditional Medicare.

Key Reimbursement Factors: SNFs are reimbursed under the Patient-Driven Payment Model (PDPM), based on patient clinical condition rather than therapy volume. CMS’s FY 2026 SNF PPS final rule increased Medicare payment rates by a net 3.2%, adding roughly $1.16 billion in aggregate payments to SNFs nationally, while also revising PDPM ICD-10 code mappings to reduce classification errors. (King & Spalding, summarizing CMS’s FY 2026 SNF PPS Final Rule)

1.2 Medicaid Coverage in SNFs

Medicaid covers long-term care for eligible low-income individuals. Unlike Medicare, it has no fixed time limit on SNF stays. But reimbursement rates vary widely by state, and they often fall short of actual cost.

Key Reimbursement Factors:

• Per Diem Rate: Medicaid pays SNFs a daily rate based on patient acuity.
• Case Mix Index (CMI): Some states adjust payment based on the level of care a resident actually requires.
• State-Specific Rules: Medicaid reimbursement policy varies widely across states. New York, for example, is actively modeling a shift to PDPM-based Medicaid methodology, with implementation not expected before late 2026 or 2027. (Bonadio Group, Navigating Reimbursement in 2026) Facilities need to track their specific state’s timeline, not assume a national standard.

2. Common Reimbursement Challenges & Pitfalls

2.1 Billing & Coding Errors

Incorrect PDPM coding, missing documentation, or outdated patient assessments lead directly to denials and delayed payment. This is now the specific focus of a new HHS-OIG audit series: the first facility reviewed under that series, a New York SNF, was flagged for $31.2 million in improper payments tied to inaccurate coding and insufficient documentation. (Bryan Cave Leighton Paisner, False Claims Act: Recent Updates, December 2025)

Solution: Regular internal audits, staff training on PDPM specifically, and claims-scrubbing software before submission.

2.2 Delayed or Denied Claims

CMS and state Medicaid agencies reject claims routinely for missing information, prior authorization issues, or insufficient medical necessity documentation. CMS’s own data attributes 75.5% of improper payments in SNF inpatient claims to insufficient documentation alone. (CMS, Skilled Nursing Facility Services, 2024 reporting period)

Solution: Real-time claims tracking, upfront prior authorization verification, and EHR-integrated billing systems that flag gaps before submission, not after a denial.

2.3 Low Medicaid Reimbursement Rates

Medicaid reimbursement often falls well below the actual cost of care, and this isn’t a one-state problem. An AHCA survey of 363 nursing home providers found that nearly two-thirds report Medicaid reimbursement covers less than 80% of actual care costs. Eleven percent report less than half. (AHCA/NCAL, May 2025 survey) The pressure is building, not easing: a 2025 federal reconciliation law is projected to cut federal Medicaid spending by $911 billion over the next decade, and nearly two-thirds of states already expect a Medicaid budget shortfall in 2026. (KFF)

Solution: Maximize appropriate Medicare and Medicare Advantage enrollment where eligible, diversify payer mix, and track state-directed payment programs, which some states use specifically to raise effective Medicaid rates.

2.4 PDPM Mismanagement

Under PDPM, SNFs must classify residents based on documented medical need, not therapy minutes provided. Getting this wrong cuts reimbursement and creates compliance exposure at the same time, since misclassification is exactly what HHS-OIG’s current audit series is built to catch.

Solution: Train clinical teams specifically on PDPM classification logic, and add a second-review step before the MDS locks.

2.5 Medicare Audits & Recoupments

CMS conducts ongoing audits to recover improper payments, and that activity has intensified. Beyond the $31.2 million PDPM audit finding above, three affiliated Illinois SNFs paid $300,000 in early 2026 to resolve False Claims Act allegations tied to medically unnecessary billing, a case that started with a whistleblower, not a routine review. (U.S. Department of Justice, Office of Public Affairs)

Solution: Maintain documentation detailed enough to independently support medical necessity, run pre-bill audits, and treat compliance review as a recurring process, not an annual event.

3. Best Practices for Optimizing Reimbursement

3.1 Implement Revenue Cycle Management (RCM) Strategies

A strong RCM system helps SNFs submit accurate claims, cut denials, and keep cash flow predictable.

Key Steps:

• Conduct pre-claim reviews for accuracy before submission.
• Monitor accounts receivable actively, so payment delays get caught early, not discovered at quarter-end.
• Streamline eligibility verification to cut avoidable rejections.

3.2 Utilize Advanced Billing & EHR Integration

Integrating billing systems with Electronic Health Records helps SNFs automate claim submission, cut manual errors, and improve documentation accuracy.

Key Benefits:

• Faster claim processing through real-time data sync.
• Better compliance, since integration closes documentation gaps automatically.
• Clearer reporting on reimbursement trends over time.

3.3 Improve Staff Training on Medicare & Medicaid Rules

Staff errors are a leading cause of denied claims and compliance risk. Regular training on current Medicare and Medicaid policy matters more than a one-time onboarding session.

Best Practices:

• Run quarterly training on PDPM and billing rule updates specifically, since both shift year to year.
• Use EHR alerts to flag documentation inconsistencies as they happen.
• Stand up an ongoing compliance task force rather than a once-a-year review.

3.4 Work With a Partner Built for SNF Reimbursement

LTCPro supports SNFs and ALFs across the United States with revenue cycle management, billing and accounts receivable, and back-office operations, backed by proprietary software covering financial, clinical, and management functions.

Billing and AR built around PDPM and Medicaid rules. LTCPro’s billing and accounts receivable service supports claim accuracy for both Medicare and state-specific Medicaid billing, rather than a one-size-fits-all approach.

Revenue cycle visibility across payers. LTCPro’s revenue cycle management service gives facilities one consistent view of Medicare, Medicaid, and Medicare Advantage claims, instead of tracking each payer separately.

Back-office support that scales with payer complexity. As state Medicaid rules and PDPM requirements shift, LTCPro’s back-office team and software are built specifically for long-term care, not adapted from a general medical billing platform.

4. The Future of Medicare & Medicaid Reimbursement

Value-based payment continues to expand. CMS’s SNF Value-Based Purchasing Program added new performance measures beyond hospital readmissions for 2026, pushing reimbursement further toward outcomes and away from volume alone.

Medicaid faces real structural pressure. With $911 billion in federal Medicaid cuts projected over the next decade (KFF) and nearly two-thirds of states already expecting 2026 budget shortfalls, the gap between Medicaid reimbursement and actual cost of care is a trend to plan around, not a temporary dip.

Medicare Advantage keeps growing. With MA plans now covering more than half of all Medicare beneficiaries, more SNFs will need to negotiate directly with MA insurers, on top of traditional Medicare, to protect their reimbursement mix.

Navigating Medicare and Medicaid reimbursement is genuinely complex, but understanding how each system actually works, and where each is headed, is what keeps a SNF financially stable through the changes ahead.

Key Takeaways:

• Medicare pays a fixed daily rate under PDPM for up to 100 days per benefit period. Medicaid pays indefinitely for eligible residents, but often below actual cost.
• Nearly two-thirds of nursing home providers report that Medicaid reimbursement covers less than 80% of the actual cost of care.
• HHS-OIG’s new PDPM audit series and a 75.5% documentation-related improper payment rate make billing accuracy an active compliance issue, not just a revenue one.
• A 2025 federal law sets up $911 billion in Medicaid spending cuts over the next decade, adding real pressure on top of already-thin state reimbursement.
• Medicare Advantage now covers more than half of Medicare beneficiaries, making MA contract strategy a growing part of every SNF’s reimbursement picture.

FAQ

How much of the actual cost of care does Medicaid reimbursement cover for nursing homes?

According to an AHCA survey of 363 nursing home providers, nearly two-thirds report that Medicaid reimbursement covers less than 80% of actual care costs, and 11% report less than half. Medicaid reimbursement rates are generally estimated at around 70% of what a private-pay resident would be charged for the same care.

How does PDPM affect Medicare reimbursement for SNFs?

Under the Patient-Driven Payment Model, Medicare reimburses SNFs based on a resident’s documented clinical characteristics across five payment components, rather than the volume of therapy provided. Misclassification under PDPM can lead to both underpayment and compliance exposure, since it’s a specific focus of HHS-OIG’s current audit program.

Is Medicaid nursing home reimbursement expected to get better or worse in the next few years?

The near-term trend points toward more pressure, not less. A 2025 federal reconciliation law is projected to cut federal Medicaid spending by $911 billion over the next decade, and nearly two-thirds of states already expect a Medicaid budget shortfall in 2026.

What percentage of Medicare beneficiaries are now in Medicare Advantage plans?

Medicare Advantage now covers more than half of all Medicare beneficiaries nationally, which means SNF reimbursement increasingly depends on direct contract terms with MA insurers, not just traditional Medicare fee-for-service rules.

What is the single biggest driver of denied or delayed SNF claims?

Insufficient documentation. CMS attributes 75.5% of improper payments in SNF inpatient claims to documentation gaps, ahead of coding errors and other causes. A documented second review before claim submission is the most direct fix.

LTCPro provides revenue cycle management, billing, payroll, and back-office support for skilled nursing and assisted living facilities across the United States, pairing proprietary software with hands-on staffing support.