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Coverage · Medicare

Medicare in San Antonio, TX: A Straight Answer on Your Options

San Antonio residents choosing Medicare coverage almost always land on one of two paths: Medicare Advantage (Part C) or Medicare Supplement (Medigap). Whether you're new to 65, just retired from a Leon Valley corridor employer, or reviewing a plan you've had for years, the difference between these two paths affects your wallet and your access to care. Annual Open Enrollment runs October 15 through December 7 every year.

This page walks through how Medicare works for San Antonio residents, which plan types are sold here, and how to line up coverage with your doctors, your prescriptions and your budget.

  • Medicare Advantage (Part C) plan comparison
  • Medicare Supplement (Medigap) guidance
  • Turning 65 enrollment support
  • Part D prescription drug matching
An older woman reviewing plan options on a tablet

Have your Medicare options reviewed by a local agent

San Antonio Senior Insurance checks your doctors, your prescriptions and your expected costs against the plans we represent in your ZIP code, then explains which ones fit. No cost for our help.

What to expect

Free review
  • A licensed agent calls you back during business hours, Mon-Fri, 8:30am-5:30pm
  • Your doctors and prescriptions get checked before any plan is suggested
  • No fee for our help, and your premium is the same either way
  • No obligation to enroll, and no pressure if you'd rather stay put
Call us: 726-237-3871

Reviewed by the licensed Texas agents at San Antonio Senior Insurance. Last reviewed: October 2026. Office hours: Mon-Fri, 8:30am-5:30pm.

Get My San Antonio Medicare Review

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Free

By submitting, you agree a licensed agent may call you about Medicare or final expense options. No obligation to enroll.

Not sure when your enrollment window opens?

Enter your date of birth and get your Initial Enrollment Period, the month to apply and when coverage could begin.

Find My Enrollment Dates

Your Two Main Medicare Paths in San Antonio

Live anywhere from Southtown to Alamo Heights, and once you enroll in Original Medicare (Part A and Part B), you'll generally pick between two main coverage paths.

Medicare Advantage Plans (Part C)

Medicare Advantage plans replace Original Medicare by bundling coverage into one plan sold by a private carrier that Medicare has approved. Most Medicare Advantage options include:

  • Hospital and medical coverage
  • Prescription drug coverage
  • Provider networks
  • Copays and out-of-pocket limits

Some plans add dental, vision, or hearing benefits, though the amount of coverage differs by carrier and plan type.

Medicare Advantage tends to appeal to San Antonio seniors who want a lower monthly premium, bundled benefits, predictable copays and coordinated care through a network. Provider access is the part to watch. A UT Southwestern specialist covered this year can drop off a plan's network next year, so confirming your doctors before you enroll matters.

Medicare Supplement Plans (Medigap)

Medicare Supplement insurance pairs with Original Medicare and helps cover costs Medicare leaves behind, like deductibles and coinsurance. Medigap plans typically offer nationwide provider access, predictable medical expenses, no referral requirements and no network restrictions.

Prescription drugs aren't included with Medigap. You'll need a separate Part D plan for medication coverage.

Medigap often fits people who travel, want broad provider flexibility across the metro, prefer fewer surprise medical bills or use healthcare services often.

Medicare Advantage vs. Medicare Supplement: The Main Differences

Here's the plain comparison, side by side.

Medicare Advantage

  • Uses provider networks
  • Often carries lower monthly premiums
  • Includes copays and annual out-of-pocket limits
  • Benefits can change each year

Medicare Supplement

  • Works alongside Original Medicare
  • Typically has higher monthly premiums
  • Keeps out-of-pocket costs minimal
  • Benefits stay consistent year after year

Medigap vs. Medicare Advantage vs. Part D, side by side

Use this table to see exactly where the three types of coverage differ. Medigap and Medicare Advantage are an either/or choice; Part D is the drug plan you add when you choose Medigap.

Medicare Supplement

Medigap · pairs with Original Medicare

What it covers
Your share of Part A and Part B costs, including deductibles, copays and coinsurance.
Doctor networks
None. Any provider in the U.S. who accepts Medicare.
Monthly premium
Highest of the three, plus your Part B premium.
Costs when you use care
Little to nothing after the Part B deductible on Plan G.
Prescription drugs
Not included. You add a separate Part D plan for that.
Extras (dental, vision, hearing)
Not included. Buy standalone if you want them.
Health questions to enroll
None during your 6-month open enrollment; underwriting applies later.
Best if you
Travel often, see specialists frequently, and want predictable bills.
Medicare Supplement details

Medicare Advantage

Part C · all-in-one private plan

What it covers
Hospital, medical and usually drugs, bundled into one plan with one card.
Doctor networks
HMO or PPO network. Confirm UT Health San Antonio, University Hospital or Baptist Medical Center are in it.
Monthly premium
Often $0, plus your Part B premium.
Costs when you use care
Copays per visit and per service, capped by an annual out-of-pocket maximum.
Prescription drugs
Included in most San Antonio-area plans.
Extras (dental, vision, hearing)
Commonly included, with allowances that vary a lot by plan.
Health questions to enroll
None. Acceptance is guaranteed during a valid enrollment period.
Best if you
Are settled with your San Antonio providers and want low premiums plus extras.
Medicare Advantage details

Part D Drug Plan

Prescriptions only · add-on

What it covers
Prescription medications only. Nothing medical.
Doctor networks
Pharmacy network only. Preferred pharmacies usually cost less.
Monthly premium
Low monthly premium, plus your Part B premium.
Costs when you use care
Deductible and tiered copays based on the plan's drug list.
Prescription drugs
This is the drug coverage.
Extras (dental, vision, hearing)
Not included.
Health questions to enroll
None.
Best if you
Chose Medigap or Original Medicare and need drug coverage.
Part D Drug Plan details

There's no single "best" option. The right choice depends on your health needs, preferred doctors, current prescriptions and financial situation. Ask us to price both.

San Antonio ZIP Codes We Serve

San Antonio Senior Insurance helps Medicare beneficiaries across San Antonio and Bexar County, including:

  • 78205
  • 78212
  • 78209
  • 78258
  • 78201

Not on the list? See our full Bexar County service area. We also help Medicare beneficiaries in Leon Valley, Converse, Helotes, Schertz, Universal City and Windcrest.

Annual Enrollment runs Oct 15 to Dec 7

Plan networks, drug tiers and premiums change every year. A free review shows whether your plan still fits.

Prescriptions drive the real cost

We run your exact medication list against the Part D plans we represent in your ZIP code, so you see annual cost, not just premium.

Turning 65 in San Antonio, TX: What You Need to Know

If you're turning 65 in San Antonio, your Initial Enrollment Period is the window that matters most. This period starts three months before your birthday month and ends three months after.

Missing this window can trigger late enrollment penalties or narrow your plan choices later. Starting the process early gives you the widest range of options.

  1. 1

    Enroll in Medicare Part A and Part B

  2. 2

    Select a Medicare Advantage plan

  3. 3

    Sign up for a Medigap policy without medical underwriting in most cases

  4. 4

    Add prescription drug coverage through Part D

Get Help With Medicare in San Antonio, TX

Picking Medicare coverage is a big decision. You don't have to sort through it alone.

If you want straightforward answers about Medicare Advantage, Medigap plans, or turning 65 in San Antonio, San Antonio Senior Insurance can help. Talk with a licensed advisor who knows Medicare rules and the local healthcare market across San Antonio County.

Compare your San Antonio Medicare options with a local advisor

We check your doctors and prescriptions first, then price Advantage and Medigap side by side. No fee, no pressure.