What Indianapolis Medicare Recipients Need to Do Before Open Enrollment Starts October 15
Local SHIP counselors at the Indianapolis Area Agency on Aging are booking appointments now — before the crunch hits. Here's exactly what Marion County seniors need to do, in order, before December 7.
Local SHIP counselors at the Indianapolis Area Agency on Aging are booking appointments now — before the crunch hits. Here’s exactly what Marion County seniors need to do, in order, before December 7.
The Medicare open enrollment window opens October 15 and closes December 7. Coverage under any plan you choose takes effect January 1. That gives Marion County seniors roughly seven weeks to review their current plan, compare alternatives, confirm their doctors are still in-network, and make a decision while juggling the holiday season. If you wait too long, you’ll lose access to the free local counseling that makes comparison manageable.
Most people don’t start in September. That’s a mistake — and an easily avoidable one.
Step Zero: Understand What Happens If You Do Nothing
If you take no action during open enrollment, you stay enrolled in your current plan. But “your current plan” may not be the same plan you’ve been on. That distinction matters more than most people realize.
Insurance carriers change premiums, cost-sharing, drug formularies, and provider networks year to year. If your plan is being discontinued entirely, Medicare will auto-enroll you in what the agency considers a “comparable plan” offered by the same carrier. In practice, “comparable” is a bureaucratic determination — not a guarantee that your doctors, your medications, or your current premium level carry over.
Doing nothing is a legitimate choice only after you’ve confirmed your current plan is staying materially the same. That confirmation starts with one document.
Section 1: Read Your ANOC Letter Before You Do Anything Else
Every Medicare Advantage and Part D plan is legally required to mail enrollees an Annual Notice of Change — the ANOC — by September 30. If yours hasn’t arrived by October 10, call member services. The number is on the back of your plan card.
The ANOC is not marketing material. It’s a disclosure document. Read it as one.
Your monthly premium may be going up or down. Your copays for specialist visits, urgent care, or hospitalizations may be changing — and a plan with a low premium but sharply higher hospital cost-sharing can cost significantly more in a year with even one inpatient stay. The drug formulary is the one that really bites people: if a medication you take daily moves from Tier 2 to Tier 4, your out-of-pocket cost for that drug may triple or quadruple. Run your specific medications against the 2027 formulary before deciding whether to stay.
Providers can also be added or removed between plan years. Your primary care physician, a specialist, a hospital — any of them may appear in the ANOC as out-of-network for 2027. Section 4 of this guide covers how to verify that independently, because the ANOC alone isn’t always enough.
You can’t make a sound decision about staying or switching until you know what your current plan is actually doing next year.
Section 2: What You Can and Cannot Change During Open Enrollment
The October 15–December 7 window is broader than many people realize, and narrower than others assume.
During open enrollment, you can switch from one Medicare Advantage plan to another, move from Medicare Advantage back to Original Medicare, or go the other direction. You can change your standalone Part D prescription drug plan or add one if you don’t currently have coverage (a late enrollment penalty may apply if you’ve gone without creditable drug coverage).
Here’s where it gets narrow — and this is the part that trips people up. Medigap plans operate entirely outside the annual open enrollment period. If you want to switch Medigap plans, or add one because you’re moving from Medicare Advantage back to Original Medicare, you’ll generally face medical underwriting. Insurers can deny coverage or charge higher premiums based on your health history. The guaranteed-issue exceptions are specific and limited. Before you make any move toward Original Medicare plus Medigap, talk to a SHIP counselor about whether underwriting is a realistic obstacle for you personally. For some seniors it isn’t. For others it’s a dealbreaker they never saw coming.
One more window worth knowing: if you’re in Medicare Advantage and want to make a change after December 7, there’s a limited Medicare Advantage Open Enrollment Period running January 1 through March 31. MA enrollees can switch to a different MA plan or return to Original Medicare once during that stretch. It doesn’t apply to standalone Part D plans and it’s not available to people outside Medicare Advantage — so don’t treat it as a general second chance.
Section 3: The Indianapolis Plan Market in Marion County
For 2027, the major Medicare Advantage carriers operating in Marion County include Humana, Anthem (Elevance Health), UnitedHealthcare, and MDwise. Each offers multiple plan types — HMO, PPO, Special Needs Plans — at different premium and cost-sharing structures.
Plan availability varies not just by county but by zip code. A plan priced competitively at 46208 (near Butler University, northwest side) may have a different network configuration than the same carrier’s plan at 46201 (near-east side) or 46227 (the Southport corridor). When you use the Plan Finder tool, enter your specific zip code.
The authoritative comparison tool is medicare.gov/plan-compare, populated with verified 2027 data starting October 1. Don’t comparison-shop on carrier websites — they show only their own products. The Plan Finder shows everything available at your address and lets you run side-by-side cost estimates based on your actual medications and providers.
One carrier worth flagging: MDwise is an Indiana-based insurer operating Medicare Advantage Dual Special Needs Plans designed specifically for people who qualify for both Medicare and Medicaid. If you’re dual-eligible, MDwise belongs in your comparison set. More on that in Section 7.
Section 4: Confirm Your Indianapolis Doctors Are Still In-Network
This is the step most Medicare guides skip. It’s also where Marion County seniors get burned, year after year.
Indiana’s major health systems — IU Health, Community Health Network, and Eskenazi Health — each have their own contracting relationships with every Medicare Advantage carrier, and those contracts are renegotiated periodically. A physician or facility in-network in 2026 may not be in 2027. A provider directory published October 1 may not yet reflect a contract change that occurred in September. These gaps are real and they are not rare.
Don’t assume that because your physician was covered last year, they’ll be covered next year under the same plan. Eskenazi Health — the Marion County public hospital system — is a critical resource for lower-income and dual-eligible patients, and its network relationships deserve specific verification, not assumptions.
As part of our health & wellness coverage, we’ve found these network verification questions come up constantly for Marion County seniors navigating plan selection. Three steps that actually resolve the question:
First, use your plan’s online provider directory and select the 2027 plan year before searching. Many directories default to the current year, which gives you useless information for what you’re trying to determine. Second, call your plan’s member services line and ask them to confirm by NPI number whether your physician is contracted and in-network starting January 1, 2027. The NPI — National Provider Identifier — is the most reliable way to specify exactly who you mean, especially in large practices with multiple doctors sharing similar names. Third, call your doctor’s billing office directly and ask which Medicare Advantage plans they’re currently contracted with. Billing staff field this question constantly and can give you a definitive answer. If they say they’re contracted with a carrier but you’re asking about a specific plan type offered by that carrier, push them to clarify which plan IDs they actually accept.
All three steps require phone calls. Make them before October 15.
Section 5: Should You Stay in Medicare Advantage or Switch to Original Medicare?
If you’ve had a difficult year with your current Medicare Advantage plan — prior authorizations denied, claims disputes, a provider forced out of your network — open enrollment is your chance to reassess. Worth doing even if the year was smooth, just to confirm you’re still in the right structure.
Medicare Advantage typically offers lower or zero monthly premiums, plus benefits Original Medicare doesn’t cover: dental, vision, and hearing are the common ones. The tradeoff is a managed care structure. HMO plans require referrals. Prior authorizations apply to certain procedures and specialists. You’re limited to in-network providers outside emergencies. For relatively healthy seniors with predictable care needs and solidly in-network providers, Medicare Advantage delivers real value. For seniors who see multiple specialists, travel frequently, or have had prior authorization fights, the calculus is different.
Original Medicare — Parts A and B — gives you access to any provider in the country who accepts Medicare, which is most of them. No prior authorization for most services. The exposure is cost: without a Medigap policy, you’re responsible for the Part B deductible, 20 percent coinsurance on most outpatient services with no cap, and the Part A hospital deductible per benefit period. Original Medicare plus a solid Medigap plan offers more predictable costs, but only if you can get through underwriting — and that’s not a small caveat for seniors with significant health histories.
The Inflation Reduction Act’s $2,000 annual out-of-pocket cap on Part D costs is already in effect. If you take expensive medications and previously faced costs running into thousands of dollars during the catastrophic phase, that has changed. Recalculate. Compare what a standalone Part D plan with your formulary would cost alongside Original Medicare. For some people, the math has shifted meaningfully.
The MA-versus-Original-Medicare decision depends on your health, your finances, your tolerance for prior authorization hassle, and whether Medigap underwriting is a realistic path. Don’t make it on the phone with a carrier’s sales representative. Make it with a SHIP counselor. If you’re weighing which Indianapolis health system your plan will actually cover, which Indianapolis health system you should actually use is worth reading before your SHIP appointment.
Section 6: Get Free, Unbiased Help — Book Your SHIP Appointment Now
Indiana’s State Health Insurance Assistance Program — SHIP — provides free one-on-one Medicare counseling through the Indianapolis Area Agency on Aging. SHIP counselors are legally prohibited from selling insurance or accepting compensation from carriers. They’re the only genuinely independent source of individualized Medicare advice available to Marion County seniors.
Contact information:
- Indianapolis Area Agency on Aging: (317) 254-5465
- Indiana SHIP statewide line: (800) 452-4800
Note: Verify the IAAA phone number and current office location directly before your appointment. CityDesk Indianapolis is confirming current address and walk-in availability.
SHIP appointment slots in Indianapolis typically fill within days of October 15. A senior who calls on October 15 or 16 is likely offered a late-November appointment — leaving almost no time to review findings, ask follow-up questions, and make a decision before December 7. That’s not hypothetical. It happens every enrollment period.
Call in September. Appointments are available now. The preparation work — reviewing your ANOC, listing your medications, identifying your providers — can be done before October 1. A SHIP counselor can work through your options as soon as 2027 Plan Finder data goes live.
At a typical SHIP session, a counselor will review your ANOC, enter your specific medications into the Plan Finder to calculate estimated annual drug costs across multiple plans, check provider directories for your current physicians, and run side-by-side cost comparisons for your zip code. Come with complete information and you’ll likely resolve the question in one appointment.
Section 7: If You Have Both Medicare and Medicaid
Dual eligibility — qualifying for both Medicare and full Medicaid — adds complexity that most national Medicare content ignores. If you’re a Marion County senior who receives both, the interaction between Medicare as primary payer and Medicaid as secondary payer creates real potential for billing errors, coordination-of-benefits disputes, and coverage gaps. This is not paperwork trivia. It’s the kind of thing that leads to unexpected bills months after a hospitalization.
Indiana’s Medicaid program is administered by FSSA through managed care contractors. Your plan options include Dual Special Needs Plans (D-SNPs) — Medicare Advantage plans designed to coordinate with Medicaid. In Marion County, MDwise operates D-SNP products built around Indiana’s Medicaid infrastructure, which matters because the plan already has working relationships with Indiana’s Medicaid system rather than trying to coordinate with it from the outside. Anthem also operates as both a Medicare Advantage carrier and one of Indiana’s Medicaid managed care contractors under Hoosier Healthwise and Hoosier Care Connect — so it has a coordination structure in place for dual-eligible members that a carrier with no Medicaid footprint in Indiana simply doesn’t.
For dual-eligible patients dealing with coordination-of-benefits disputes or enrollment questions, two Indianapolis health systems have dedicated resources:
- Eskenazi Health Patient Financial Services: (317) 880-3590 — Eskenazi serves a disproportionate share of lower-income and Medicaid-eligible patients in Marion County, and its financial services staff know dual-eligibility coordination.
- IU Health Patient Financial Services: (888) 482-7777
Note: Verify both numbers directly before calling. CityDesk Indianapolis is confirming these lines reach patient financial services for dual-eligible patients.
Work with a SHIP counselor to understand how your Medicaid coverage interacts with Medicare Advantage plan selection before you make any changes.
What to Bring to Your SHIP Appointment
Showing up without your medication list is the single most common reason people need a second appointment. Bring complete information the first time.
Bring your Medicare card (with your Medicare Beneficiary Identifier), your ANOC letter, and a complete medication list — every prescription, exact drug name, dosage, and frequency, including anything you take less than daily. Bring a list of your current providers: primary care physician, all specialists, any facilities you use regularly. Bring recent Explanation of Benefits statements showing what you’ve actually paid out-of-pocket this year. Bring your plan member ID card. If you’re dual-eligible, bring your Medicaid ID card and recent FSSA correspondence about your coverage.
If you’ve had a claim denied or a prior authorization dispute this year, bring the denial letter. A SHIP counselor can tell you whether that denial reflects a plan design problem worth switching away from — or a one-time issue that doesn’t predict much.
The Bottom Line
Open enrollment isn’t complicated the way tax law is complicated. It’s time-consuming the way any decision requiring real information is time-consuming. September is not a waiting month. Your ANOC arrives by September 30. The Plan Finder opens October 1. SHIP appointments are available right now, before the slots fill. The deadline is December 7, and the best decisions get made with time to spare — not in a rush the week after Thanksgiving.
Call the Indianapolis Area Agency on Aging this week: (317) 254-5465.
Phone numbers in this article are being verified directly with each organization. CityDesk Indianapolis will update this guide with confirmed contact details and the IAAA’s current address, walk-in hours, and 2027 Marion County plan data when published October 1.
