Yes — Medicare covers second opinions. If a doctor recommends surgery or another major procedure, Medicare Part B pays 80% of the cost of a Medicare second opinion from another physician after you meet your $283 annual deductible — and it even pays for a third opinion if the first two disagree. As a senior health educator, I find this is one of the most underused rights in the entire program: studies of second-opinion programs consistently find that a meaningful share of treatment recommendations change after another specialist reviews the case. Here is exactly how the benefit works in 2026, what it costs, and how to use it without offending your doctor.
Table of Contents
- What Medicare Covers — and the Third-Opinion Rule
- What a Second Opinion Costs in 2026
- Medicare Advantage: One Important Difference
- When You Should Always Get One
- How to Get a Second Opinion in 5 Steps
- Frequently Asked Questions
What Medicare Covers — and the Third-Opinion Rule
Original Medicare covers a Medicare second opinion under Part B whenever a doctor recommends non-emergency surgery or a major diagnostic or therapeutic procedure. The visit is billed like any other outpatient physician service: Medicare pays 80% of the approved amount, you owe 20% coinsurance (a Medigap plan typically picks that up). Critically, Medicare also covers tests the second doctor orders if they were not already performed — repeat imaging, labs, or biopsies needed to form an independent judgment.
The rule most seniors have never heard of: if the first and second opinions disagree, Medicare pays for a third opinion under the same 80/20 terms. That tiebreaker provision exists precisely because surgical recommendations vary far more than most patients assume — regional variation studies (the Dartmouth Atlas work) have documented two- to three-fold differences in rates of elective procedures like spinal fusion and knee replacement between similar communities.
What is not covered: second opinions for services Medicare itself does not cover (routine dental work is the classic example — see our guide to what Medicare does and does not cover for dental), and opinions sought purely for legal or insurance-dispute purposes.
What a Second Opinion Costs in 2026
| Scenario (2026) | Medicare Pays | You Pay |
|---|---|---|
| Second-opinion office visit (~$180 approved, deductible met) | $144 (80%) | ~$36 (20%) |
| Same visit with Medigap Plan G | 80% + plan pays 20% | $0 |
| Deductible not yet met | $0 until $283 deductible satisfied | Up to $283, then 20% |
| Third opinion (first two disagree) | 80%, same rules | 20% coinsurance |
| New tests ordered by second doctor | 80% of approved amount | 20% coinsurance |
In practice, a second opinion usually costs a senior with Original Medicare alone $30–$60 out of pocket — trivial next to the stakes of a $40,000 operation. If you have a supplement, it is effectively free.
Medicare Advantage: One Important Difference
Medicare Advantage plans must cover everything Original Medicare covers, including second opinions — but they may apply network rules and referral requirements. In an HMO, you will generally need the second doctor to be in-network, and possibly a referral from your primary care physician. PPOs allow out-of-network opinions at higher cost sharing. Call the number on your plan card and ask two specific questions: “Do I need a referral for a second opinion?” and “Which in-network specialists in this field are accepting patients?” If your plan requires prior authorization for the procedure itself, a well-documented second opinion can actually strengthen the approval file — and if you are ever denied, our guide to fighting Medicare Advantage denials walks through the appeal ladder.
When You Should Always Get One
I tell readers to treat a second opinion as mandatory, not optional, in five situations: (1) any elective, non-emergency surgery — joint replacement, back surgery, cataract timing disputes, hip replacement; (2) a new cancer diagnosis, where pathology review alone changes the diagnosis in a small but real percentage of cases; (3) any recommendation of long-term high-risk medication (chronic steroids, anticoagulation changes); (4) when the diagnosis remains uncertain after a full workup; and (5) whenever your gut says the recommendation came too fast. Reputable surgeons welcome second opinions — the ones who bristle are giving you information too.
Remember that surgery is rarely a same-week decision. Conditions managed under Medicare’s chronic care management benefit in particular tend to have multiple reasonable treatment paths, and pace matters less than getting the path right.
How to Get a Second Opinion in 5 Steps
Step 1: Tell your first doctor
A simple script works: “Before I schedule this, I’d like a second opinion. Can your office send my records?” Under federal rules your records must be shared; most offices handle it routinely.
Step 2: Choose a truly independent physician
Pick a specialist at a different practice or hospital system — partners share culture and often assumptions. Use Medicare.gov’s Care Compare tool or a university medical center.
Step 3: Send records ahead
Imaging discs or portal access, operative notes, pathology, and your medication list. This prevents duplicate testing and makes the visit count.
Step 4: Ask comparison questions
What happens if I wait six months? What are the non-surgical options and their success rates at my age? How many of these procedures do you perform yearly?
Step 5: If the opinions disagree, use the third-opinion benefit
Medicare pays for the tiebreaker. Bring both prior opinions and let the third physician see the disagreement directly.
Frequently Asked Questions
Does Medicare cover a second opinion for surgery?
Yes. Medicare Part B covers second opinions for non-emergency surgery at 80% of the approved amount after the $283 deductible, and covers a third opinion if the first two disagree.
Do I need my doctor’s permission to get one?
No. With Original Medicare you may see any doctor who accepts Medicare, no referral needed. Medicare Advantage HMO members may need a referral — check your plan.
Will Medicare pay for repeat tests?
Medicare covers additional tests the second doctor orders if they were not already done and are needed to evaluate you. Bring prior results to avoid unnecessary duplication.
What if the second opinion is different — which do I follow?
Neither automatically. Medicare covers a third opinion as the tiebreaker. Weigh each doctor’s reasoning, complication rates at your age, and what happens with watchful waiting.
Related Articles You May Find Helpful
- Medicare Complete Guide 2026
- Medicare Prior Authorization 2026: 17 Services Now Need Approval
- Medicare AI Prior Authorization: Fight Back When AI Denies Care
- Does Medicare Cover Hip Replacement in 2026?
- Does Medicare Cover Dental in 2026?
Sources
- Medicare.gov — Second Surgical Opinions
- CMS — 2026 Medicare Parts A & B Premiums and Deductibles
- National Institute on Aging — Talking With Your Doctor
This article is for educational purposes only and is not medical or insurance advice. See our medical disclaimer.
