Medicare vs ACA — What Call Center Agents Need to Know

If you work in health insurance sales, you've probably had to switch between Medicare campaigns and ACA/Marketplace campaigns at short notice. On the surface, they both involve health coverage and phone sales. But they're completely different programs with different eligibility rules, different client demographics, different compliance requirements, and different scripts.

Mixing them up on a call — or worse, using the wrong opening — is one of the fastest ways to lose rapport and trigger compliance issues. This guide gives you a clear, practical side-by-side breakdown of both programs so you can move confidently between campaigns.

The Fundamental Difference

Medicare is a federal health insurance program for people 65 and older, or for people under 65 with certain disabilities or end-stage renal disease. It's not income-based — it's age/disability-based.

ACA (Affordable Care Act) / Marketplace is health insurance for people under 65 who don't have employer-sponsored coverage or Medicaid. It's heavily income-based — subsidies are determined by household income relative to the Federal Poverty Level.

Medicare: What Agents Need to Know

Medicare has four main parts. As an agent, you need to understand which part you're discussing and which you're not:

• Part A — Hospital insurance. Most people get it free (if they or a spouse paid Medicare taxes for 10+ years).
• Part B — Medical insurance. Covers doctors, outpatient services. Monthly premium (~$175 in 2025).
• Part C (Medicare Advantage) — Private insurance that replaces Original Medicare. This is where most sales campaigns focus. Plans often include dental, vision, hearing.
• Part D — Prescription drug coverage. Can be standalone or bundled with Advantage plans.

The Annual Enrollment Period (AEP) runs October 15 to December 7 — this is the primary selling season for Medicare. There's also the Open Enrollment Period (OEP) from January 1 to March 31 where beneficiaries can switch Advantage plans.

ACA / Marketplace: What Agents Need to Know

ACA sales revolve almost entirely around subsidies. The key number is the Premium Tax Credit, which can reduce or eliminate monthly premiums for eligible households. In 2025, enhanced subsidies from the Inflation Reduction Act mean clients earning up to 400% of the Federal Poverty Level may pay very little — and those earning under 150% FPL can get $0 premium Silver plans.

The main qualifying question isn't "do you want insurance" — it's "are you currently insured through an employer?" If yes, they typically don't qualify for Marketplace subsidies. Start there.

Special Enrollment Periods (SEPs) allow clients to enroll outside of Open Enrollment if they have a qualifying life event: losing job-based coverage, moving to a new state, getting married, having a baby, or aging off a parent's plan at 26.

Script Differences: Medicare vs ACA

The opening has to be different because the wrong opening immediately signals that you don't know who you're talking to.

Medicare opening: "Hi, I'm reaching out because you may be eligible for additional benefits under your Medicare plan — including dental, vision, and prescription coverage at no extra cost. Do you have 3 minutes?"

ACA opening: "Hi, I'm calling because Open Enrollment / the Special Enrollment Period is currently active, and based on your household income you may qualify for a health plan with zero monthly premium. This is through the federal Marketplace. Do you have 5 minutes to check your eligibility?"

Notice that the Medicare opening assumes the client already has Medicare (it's an eligibility-based program). The ACA opening focuses on income and the enrollment window (it's opportunity-based).

Common Objections — Program-Specific Rebuttals

Medicare: "I already have coverage"
"That's great — and that's actually why I'm calling. Your original Medicare covers the basics, but most beneficiaries don't realize they may qualify for an Advantage plan that adds dental, vision, and hearing at no extra monthly premium. Can I take 2 minutes to compare?"

ACA: "I already have insurance through work"
"Understood. If your employer plan is considered affordable under federal guidelines, you wouldn't qualify for Marketplace subsidies — but many employer plans don't meet that threshold. Can I ask what percentage of the premium your employer covers?"

Compliance: The Lines You Can't Cross

Both programs have strict compliance requirements. For Medicare: you must follow CMS marketing rules, cannot cold-call beneficiaries without prior consent, and cannot conduct sales activities in healthcare settings. For ACA: you must be a licensed agent in the state you're selling, cannot enroll clients on SEP without a legitimate qualifying event, and must document consent.

When in doubt on either program: ask, don't assume. It protects the client and protects your license.