Medicare Part A covers the hospital or surgical facility costs for cataract surgery, but not the surgeon's fee or the eye exam that finds the cataract

If your cataract surgery happens in a hospital outpatient department or an ambulatory surgical center, Medicare Part A pays for the facility itself — the operating room, equipment, and staff who information. What Part A does not cover is the ophthalmologist's surgical fee, which falls to Medicare Part B instead. You also pay for the eye exam that diagnosed the cataract in the first place, unless it was part of a routine preventive visit.

The split between Part A and Part B can be confusing because you receive one bill for surgery but two different insurance programs are involved. Understanding which program pays for which piece helps you know what to expect when the bills arrive.

Key Takeaways

  • Medicare Part A covers the surgical facility cost when cataract surgery is performed in a hospital outpatient department or ambulatory surgical center.
  • Medicare Part B covers the ophthalmologist's surgical fee and the eye exam that diagnosed the cataract.
  • You typically pay a Part A copay for the facility (usually $0 to $500 depending on the facility type) and a Part B copay for the surgeon's fee (usually 20 percent of the approved amount).
  • If surgery is performed in a doctor's office instead of a facility, Part A does not cover it at all — Part B covers both the surgeon and the facility.

How the facility cost and surgeon fee split between Part A and Part B

Cataract surgery involves two separate services: the use of the surgical facility and the surgeon's work. Medicare divides payment between these two parts of your coverage. Part A pays the facility bill, and Part B pays the surgeon. This means you receive separate bills from the surgical center or hospital and from the ophthalmologist's office.

The facility bill under Part A typically includes the operating room, anesthesia staff, nurses, and surgical supplies. The surgeon's bill under Part B covers only the ophthalmologist's time and informed. Neither bill includes the eye exam that found the cataract unless that exam was a routine preventive visit covered under Part B's annual eye exam benefit (which Medicare Part B covers once every 24 months for people with diabetes or at risk for glaucoma).

What you pay out of pocket for cataract surgery

Your out-of-pocket cost depends on whether the surgery is in a hospital outpatient department or an ambulatory surgical center, and on your specific Medicare plan. For the facility cost under Part A, you typically pay a copay that ranges from $0 to $500, depending on the facility type and your plan. For the surgeon's fee under Part B, you usually pay 20 percent of the Medicare-approved amount after you meet your Part B deductible (which is $240 in 2024, though this amount changes yearly).

If you have a Medigap or Medicare Advantage plan, your out-of-pocket costs may be lower because those plans often cover some or all of the copays and coinsurance. Check your plan documents or call your plan's customer service to learn your exact costs before surgery.

Cataract surgery in a doctor's office versus a facility

Some ophthalmologists perform cataract surgery in their own office rather than in a hospital or surgical center. When this happens, Part A does not cover any of the cost. Instead, Part B covers both the surgeon's fee and the facility fee for the office-based procedure. You pay a single copay (usually 20 percent of the Medicare-approved amount) rather than two separate copays.

Office-based surgery may be less expensive out of pocket because you avoid the Part A facility copay, but the total Medicare payment may be lower as well. Ask your ophthalmologist whether the procedure will be done in their office or at a facility, and request an estimate of your costs under your specific plan.

Intraocular lens implants and premium lens options

Medicare Part A and Part B cover a standard intraocular lens (IOL) implant, which replaces the clouded lens during cataract surgery. The cost of the standard lens is included in the surgeon's fee that Part B covers. However, if you choose a premium lens — such as a multifocal lens that corrects distance and near vision, or a toric lens for astigmatism — Medicare does not cover the extra cost of the premium lens itself.

The difference between a standard lens and a premium lens can range from a few hundred to several thousand dollars, depending on the lens type and your ophthalmologist's pricing. You pay this difference out of pocket. The surgeon's fee for implanting the premium lens is still covered by Part B, but the lens material upgrade is your responsibility.

Before and after surgery: what Medicare covers and what it does not

The eye exam that diagnoses a cataract is not automatically covered by Medicare Part A or Part B unless it is a routine preventive eye exam for people with diabetes or at risk for glaucoma. If you need a separate diagnostic exam to confirm the cataract and measure your eye for surgery, you may pay out of pocket or it may be covered under Part B depending on the circumstances — ask your ophthalmologist's office to clarify before the visit.

After surgery, follow-up visits with your ophthalmologist are covered by Part B, and you pay your usual Part B copay (20 percent of the approved amount after your deductible). Post-operative eye drops and medications prescribed after surgery are covered by Medicare Part D (prescription drug coverage) if you have that plan, or you pay out of pocket if you do not.

How to find out your exact costs before surgery

The best way to learn what you will pay is to contact your ophthalmologist's billing office and provide your Medicare information. Ask them to give you an estimate based on your specific plan — whether you have Original Medicare with a Medigap plan, a Medicare Advantage plan, or neither. Request the estimate in writing if possible.

You can also call Medicare directly at 1-800-MEDICARE to ask about coverage for your specific situation, or visit Medicare.gov and use their "Find Care Providers" tool to look up whether your ophthalmologist is in-network if you have a Medicare Advantage plan. Having this information before surgery helps you budget and avoid surprise bills.

Frequently Asked Questions

Does Medicare cover both eyes if I need cataract surgery on each one?

Yes. Medicare covers cataract surgery on each eye separately. You typically have the first eye done, wait for it to heal, and then schedule surgery on the second eye. Each surgery is covered the same way — Part A covers the facility cost and Part B covers the surgeon's fee — and you pay copays for each procedure.

What if my ophthalmologist says I am not ready for surgery yet?

Medicare covers cataract surgery only when the cataract is affecting your vision enough to interfere with your daily activities. If your ophthalmologist says you are not ready, Medicare will not cover the surgery at that time. You can have another eye exam later to see if the cataract has progressed enough to meet Medicare's coverage rules.

Do I need prior approval from Medicare before cataract surgery?

No. Cataract surgery does not require prior approval from Medicare. Your ophthalmologist can schedule the surgery once they determine it is medically necessary. However, if you have a Medicare Advantage plan, check your plan's rules — some plans require you to use in-network providers or notify them before surgery.

Will Medicare cover cataract surgery if I also have vision insurance?

Yes, but the order of payment matters. Medicare is your primary payer, meaning it pays first. Your vision insurance (if you have it) may cover some of the remaining cost, but you should contact both insurers to understand how they coordinate benefits before surgery.

What happens if I choose a surgical center that is not in my Medicare Advantage plan's network?

If you have a Medicare Advantage plan and use an out-of-network facility, you may pay higher copays or coinsurance, or the plan may not cover the surgery at all. Check your plan's provider directory or call customer service to confirm that your chosen surgical center is in-network before scheduling.