Medicare Advantage vs. Medigap in New York: How to Compare

By HCA Insurance Editorial Team · Updated August 28, 2026

This is not a comparison between a “good” and a “bad” choice. Medicare Advantage and Medicare Supplement Insurance (Medigap) work differently. The useful question is which structure best fits your providers, prescriptions, budget, travel, healthcare use and comfort with plan rules.

First, understand what each path is

Original Medicare plus Medigap: Original Medicare includes Part A and Part B. A Medigap policy is private insurance that can help pay certain Original Medicare out-of-pocket costs, such as copayments, coinsurance and deductibles. People with Original Medicare may also consider a separate Part D prescription-drug plan. You cannot use a Medigap policy with Medicare Advantage.

Medicare Advantage: A Medicare Advantage plan is another way to receive Part A and Part B benefits through a Medicare-approved private plan. Most plans include Part D drug coverage. Plans may have provider networks, benefit rules, prior-authorization requirements and an annual out-of-pocket maximum for covered Part A and Part B services.

Compare the right five dimensions

• Doctors and hospitals: Confirm each doctor, specialist and preferred hospital directly with the plan and provider. Ask how out-of-network care is handled and whether referrals are required.
• Prescriptions: Check every medication against the current formulary, including tier, coverage restrictions, preferred pharmacies and mail-order options. A plan that fits your doctors but not your prescriptions may be a poor fit.
• Total cost: Look beyond a monthly premium. Compare deductibles, copays, coinsurance, maximum out-of-pocket exposure, Part D costs, premiums and the likelihood of needing care.
• Rules and access: Ask about networks, referrals, prior authorization, service areas and how a plan works when you travel or spend time in another state.
• Enrollment timing: Medigap rights and underwriting can depend on timing and circumstances. Do not assume you can move between coverage paths later on the same terms.

Questions New Yorkers should bring to a comparison

List Capital Region, North Country, downstate or out-of-state providers you expect to use. Include seasonal travel, adult children in other states, preferred hospital systems and prescriptions filled at more than one pharmacy. If a plan advertises an extra benefit, ask about eligibility, network, frequency and any limits rather than treating the headline as the complete answer.

Use current documents, not general descriptions

Plan availability and benefits vary by county and change from year to year. Use Medicare Plan Compare, plan provider directories, formularies, Evidence of Coverage documents and Summary of Benefits documents for the year you are considering. For Medigap, compare policies with the same plan letter on price and insurer terms; standardized benefits do not mean every insurer charges the same premium.