Case File #004: Medicare, Medicare Advantage & Dual-Eligible Patients

Why Dental Providers Must Understand These Plans Now More Than Ever

As dental providers, consultants, and advocates, we are entering a new era of care.

The senior population is rapidly increasing. Patients are living longer. They are medically complex. And more of them are enrolled in Medicare, Medicare Advantage, and dual Medicaid + Medicare plans than ever before.

Yet many dental offices still:

  • Refer medically complex seniors out immediately

  • Request medical clearance and feel overwhelmed

  • Assume “Medicare doesn’t cover dental”

  • Opt out entirely without understanding the consequences

This is no longer sustainable.

If we want to serve seniors properly — clinically and financially — we must understand how these plans work and how to integrate them into dental workflows.

Understanding Original Medicare (Parts A & B)

Original Medicare includes:

  • Part A – Hospital coverage

  • Part B – Outpatient/medical services

What Medicare DOES NOT Cover (Typically)

Routine dental:

  • Cleanings

  • Fillings

  • Crowns

  • Dentures

What Medicare CAN Cover

Dental services that are:

  • Medically necessary

  • Integral to the treatment of a covered medical condition

Examples:

  • Extractions prior to radiation therapy

  • Dental clearance before organ transplant

  • Oral surgery tied to trauma

  • Treatment related to systemic infection

  • Certain sleep apnea diagnostics and services

The key phrase is:

“Inextricably linked to a covered medical service.”

When dental conditions affect systemic health — and they often do — coverage becomes possible.

Participating vs Non-Participating vs Opted-Out Providers

This is where many dental providers unknowingly limit patient access.

1️⃣ Participating (PAR) Provider

  • Accepts Medicare assignment

  • Agrees to Medicare’s fee schedule

  • Medicare pays provider directly

2️⃣ Non-Participating (Non-PAR) Provider

  • Does NOT accept assignment routinely

  • May collect from patient upfront

  • Patient can submit claim and receive reimbursement

  • Limited up-to 115% of Medicare allowable

3️⃣ Opted-Out Provider

  • Signs private contract

  • Medicare will not reimburse patient

  • Patient pays fully out-of-pocket

  • No claim submission allowed

Why At Minimum You Should Consider Non-PAR

When a provider opts out:

  • The patient cannot bill Medicare

  • There is no reimbursement pathway

  • Seniors are less likely to move forward with treatment

  • Access to care is reduced

When you remain at least Non-Participating, you preserve:

  • The patient’s right to reimbursement

  • Financial flexibility

  • Trust

  • Access

For medically complex seniors, this can be the difference between treatment acceptance and delay.

Medicare Advantage (Part C): The Game Changer

Medicare Advantage plans are private plans that replace Original Medicare.

They:

  • Must cover everything Original Medicare covers

  • Often include additional benefits

  • Frequently include limited dental benefits

  • Operate through networks (HMO, PPO)

Important Differences:

  • Coverage varies by carrier and region

  • Some include preventive dental

  • Some include comprehensive dental

  • Some require prior authorization

  • Network status matters significantly

Providers must:

  • Verify plan type

  • Confirm network participation

  • Understand authorization requirements

  • Determine if medical necessity applies

Dual-Eligible Patients (Medicare + Medicaid)

These patients often:

  • Have the highest medical complexity

  • Have limited financial resources

  • Qualify for additional support

Depending on the state:

  • Medicaid may provide dental benefits

  • Medicare may cover medical-linked dental

  • Coordination of benefits becomes critical

Dual patients are where advocacy coordination becomes invaluable.

When a Patient Has Both Medicare and Medicaid (Dual Eligible)

If a patient is enrolled in:

  • Medicare

  • Medicaid

Then:

🥇 Medicare Pays First

🥈 Medicaid Pays Second (if applicable)

Medicaid acts as the “payer of last resort.”

That means Medicaid may:

  • Cover Medicare deductibles

  • Cover Medicare coinsurance

  • Cover copays

  • Cover services Medicare doesn’t (depending on state)

Example (Medical Scenario)

Patient needs medically necessary oral surgery tied to systemic infection.

  1. Bill Medicare Part B first.

  2. Medicare processes claim.

  3. Remaining balance automatically or manually crosses to Medicaid.

  4. Medicaid may pay remaining allowable balance (state dependent).

Important Exception: Medicare Advantage (Part C)

If the patient has a Medicare Advantage plan:

That plan replaces Original Medicare.

So in that case:

  • The Medicare Advantage plan is primary.

  • Medicaid is still secondary.

Dental-Specific Nuance (Where It Gets Interesting)

For dental services:

Scenario 1 – Service is medically necessary

  • Medicare (or Medicare Advantage) may pay first.

  • Medicaid may pick up remainder.

Scenario 2 – Routine dental (Original Medicare)

  • Medicare pays nothing.

  • Medicaid may be primary for dental (state dependent).

Scenario 3 – Medicare Advantage plan with dental rider

  • Medicare Advantage dental benefit is primary.

  • Medicaid may coordinate secondary if allowed.

This is why verification is critical every time.

When Medicaid Can Be Primary

Medicaid may be primary in cases where:

  • Service is NOT covered by Medicare at all

  • Patient has QMB, SLMB, or full dual status

  • Dental benefit is strictly under state Medicaid

But even then: Medicare must usually deny first before Medicaid processes — unless it is clearly a non-Medicare-covered benefit category.

Key Rule to Remember

If a patient has both:

👉 Medicare always processes first for Medicare-covered services.

👉 Medicaid is payer of last resort.

The Mouth-Body Connection

We cannot discuss Medicare without discussing systemic health.

Seniors frequently present with:

  • Diabetes

  • Cardiovascular disease

  • Kidney disease

  • Osteoporosis

  • Autoimmune disorders

  • Sleep apnea

  • Cancer history

Oral infections can:

  • Elevate A1C

  • Increase cardiac inflammation

  • Complicate joint replacements

  • Delay cancer treatments

  • Worsen pneumonia risk

When dental conditions are tied to systemic health, documentation becomes everything.

And this is where integration matters.

Why Advocacy Is Critical for Senior Patients

How many times have you:

  • Requested medical clearance

  • Referred to PCP

  • Sent forms back and forth

  • Waited weeks

  • Felt stuck between providers

  • Had a patient overwhelmed and confused

That moment — that overwhelm — is the first clue.

It may be time to involve an advocacy organization.

Organizations like the National Dental Advocacy Program (NDAP) help:

  • Coordinate care between medical and dental providers

  • Review Explanation of Benefits (EOBs)

  • Identify Medicare-linked coverage opportunities

  • Assist dual-eligible coordination

  • Help patients utilize advocacy benefits through qualifying Medicare plans

In certain cases, advocacy services themselves may be eligible for coverage under specific plan structures when qualifying criteria are met.

This reduces:

  • Administrative burden on dental offices

  • Patient confusion

  • Treatment abandonment

Why Using the Medicare Medical Plan First Can Be Powerful

Unlike traditional dental insurance:

  • Medical plans do NOT have a low annual maximum (like $1,000–$2,000 typical dental caps)

  • Medical coverage is diagnosis-driven

  • There is no annual dental-style cap when medically necessary

This means:

Medical plan can cover:

  • Medically necessary procedures

  • Surgical services

  • Diagnostics tied to systemic condition

Dental insurance can then remain available for:

  • Preventive services

  • Basic restorative

  • Services not tied to medical necessity

This is full-circle financial coordination.

Why This Matters More Than Ever

The senior population is growing faster than any other age demographic.

Dental providers who:

  • Learn Medicare integration

  • Understand Advantage plan variation

  • Avoid unnecessary opt-out status

  • Coordinate with advocacy services

  • Document systemic linkage properly

…will be positioned to serve this population effectively.

Those who don’t may unintentionally reduce access to care.

Key Takeaways for Dental Providers

  • ✔ Review your Medicare enrollment status

  • ✔ Consider remaining at least Non-Participating

  • ✔ Understand local Medicare Advantage plan networks

  • ✔ Verify benefits thoroughly

  • ✔ Document systemic connections

  • ✔ Build relationships with advocacy organizations like NDAP

  • ✔ Train your team on coordination workflows

Helpful Resources

Final Thoughts

Seniors are not “difficult patients.” They are medically complex patients navigating layered systems.

When dental providers understand Medicare structures and coordinate appropriately:

  • Treatment acceptance increases

  • Financial barriers decrease

  • Systemic health outcomes improve

  • Administrative overwhelm reduces

There are options.

And as the population ages, integration between medical and dental care is no longer optional — it is essential.

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Case File #003: Medical Billing in Dentistry- The Untapped Revenue Stream That Changes Patient Care