Health insurance generally does cover second opinions when the consultation is medically necessary, so the real question is not whether insurance covers second opinions but under what conditions your specific plan will pay. Most private plans treat a second opinion like any other specialist visit, with your usual co-pay or coinsurance. Medicare Part B pays 80% of the approved amount after the annual deductible. The way to lose that coverage is procedural: going out-of-network without permission, skipping prior authorization, or missing a plan-specific limit buried in your benefits document.
How Private Plans Handle Second Opinions
Employer plans and marketplace plans through the Affordable Care Act usually cover an in-network second opinion the same way they cover a first specialist visit. You pay your normal cost-sharing, the visit applies to your deductible, and the plan pays the rest. Coverage tends to be broadest for serious or complex conditions where treatment options vary, such as cancer, cardiac disease, and situations with several viable surgical paths.
The differences show up in the fine print. Some plans cap the number of covered second opinions per year. Some cap the reimbursement for a single consultation. Some require the second-opinion physician to be board-certified in the same specialty as the original diagnosis. Before you schedule anything, read your Summary of Benefits and Coverage or call the number on your insurance card. A five-minute call is the cheapest way to avoid a surprise bill.
When Your Insurer Wants You to Get One
Sometimes the second opinion is not your idea. Certain plans require a mandatory second opinion before approving expensive or elective procedures like joint replacements, spinal fusions, and cardiac surgery.1Cigna Healthcare. Getting a Second Opinion In that case the consultation is typically free to you because the insurer is the one asking for it. Skip the step and the surgery itself can be denied.
Some plans go further with Centers of Excellence arrangements. If your insurer has contracted with specific hospital systems for certain procedures, you may qualify for a no-cost record review by specialists at those facilities. Aetna’s program, for instance, offers free second opinions coordinated by a nurse care manager for qualifying surgeries like hip replacements and cardiac bypass grafts.2Aetna. Access to World-Class Specialists and Centers If your plan offers something similar, using it can eliminate your cost entirely.
Medicare and Medicaid
Medicare Part B covers a second opinion before any non-emergency surgery your doctor has recommended. The second doctor must accept Medicare but does not have to be in the same specialty as the first. Medicare pays 80% of the approved amount after you meet the annual Part B deductible, which is $283 in 2026, and you pay the remaining 20%.3Medicare. Getting a Second Opinion Before Surgery
If the first and second opinions disagree, Medicare will help pay for a third opinion under the same 80/20 split. Medicare Advantage plans also cover a third opinion, but you have to follow the plan’s network and referral rules.3Medicare. Getting a Second Opinion Before Surgery Medicare will not cover a second opinion for a procedure it considers not medically necessary, such as cosmetic surgery.
Medicaid may cover second surgical opinions, but the specifics vary by state. Your state’s medical assistance office is the place to confirm what applies to your plan.
Staying In-Network
In-network is the simplest path. Your co-pay or coinsurance will match what you pay for any other specialist, and the provider is billing at a negotiated rate. Out-of-network almost always means higher cost-sharing, and if you have an HMO or EPO, the plan may not cover out-of-network care at all outside of emergencies.
If the specialist you want is not in your network, ask your insurer about a network gap exception before you schedule. That is a formal request to have an out-of-network provider covered at in-network rates, usually granted when no in-network specialist can provide the specific service you need. You will need to explain why the in-network options are inadequate, and asking beforehand is far easier than trying to fix it after the bill arrives.
Confirm network status close to the appointment. Providers come and go from networks, and a directory listing from two months ago may not be current. A quick call to the provider’s billing office or a check of the insurer’s online directory will settle it.
Prior Authorization
Plenty of plans require prior authorization before they will cover a second opinion, especially for complex or expensive consultations. Prior authorization is how the insurer confirms medical necessity ahead of the visit, and skipping it is one of the fastest routes to a bill you have to pay in full.
If your doctor is in-network, the office usually submits the authorization request for you. Out-of-network, the responsibility often falls on you.4Cigna Healthcare. What is Prior Authorization in Health Insurance? Either way, the insurer will want medical records from the initial diagnosis, prior test results, and often a written explanation of why the second opinion is warranted.
Standard requests generally come back within 5 to 10 business days, with the insurer approving, denying, asking for more information, or suggesting a less costly alternative.4Cigna Healthcare. What is Prior Authorization in Health Insurance? Delays are usually about incomplete records, so gather everything before the request goes in. For urgent situations, your doctor’s office can request an expedited authorization, which insurers generally must resolve within 72 hours.5eCFR. 45 CFR 147.136 – Internal Claims and Appeals and External Review Processes
What You Will Actually Pay
When your plan covers the visit, you pay whatever cost-sharing applies to specialists on your plan: a co-pay, coinsurance after the deductible, or both. In-network, that is usually manageable. Out-of-network is where costs climb, because there is no negotiated rate and your share of a higher billed amount can be substantial.
One boundary worth naming: concierge virtual second opinion programs run by academic medical centers are typically not covered by insurance and cannot be billed to your plan. Cleveland Clinic charges $1,690 for a written report and $1,990 for a report plus a virtual visit, for example.6Cleveland Clinic. Virtual Second Opinions These can be useful when you want an opinion from a specific institution without traveling, but plan on paying the full price yourself.
Your out-of-pocket share for a covered second opinion generally qualifies as an eligible expense under a Health Savings Account or Flexible Spending Account. The IRS defines qualifying medical expenses to include payments for services from physicians and other medical practitioners, which covers a diagnostic consultation.7Internal Revenue Service. Publication 502, Medical and Dental Expenses Keep the receipt and the explanation of benefits, because your HSA or FSA administrator may ask for documentation.
If cost is still a barrier, ask the provider about payment plans or sliding-scale fees. Disease-focused nonprofits sometimes offer grants or financial aid for second opinions on serious diagnoses. Calling your insurer’s customer service line is worth doing even if you expect a denial, because a representative can sometimes point out coverage pathways or in-network options you did not know about.
If Your Claim Is Denied
When a second opinion claim is denied, the insurer must send a written explanation. The usual reasons are missing prior authorization, incomplete documentation, or a determination that the consultation was not medically necessary. That letter is the starting point for your appeal because it tells you what to address.
The first step is an internal appeal. You ask the insurer to reconsider, and you submit whatever addresses the stated reason: additional medical records, a letter from your treating physician explaining why the second opinion was necessary, anything else that fills the gap. A different reviewer must handle the appeal.
If the internal appeal fails, federal law gives you the right to an external review by an independent organization with no connection to your insurer. You have at least four months from the date you received the final denial to file. The independent reviewer must issue a decision within 45 days for standard cases, or within 72 hours for expedited urgent cases where delay could seriously harm your health.5eCFR. 45 CFR 147.136 – Internal Claims and Appeals and External Review Processes The reviewer’s decision is binding on the insurer in most cases, and this is where many wrongly denied claims are overturned, particularly when the denial rested on a narrow reading of medical necessity. Do not skip the internal appeal, though: most external review processes require you to exhaust internal remedies first.
State Protections
Some states go beyond federal requirements and specifically require plans to cover second medical opinions. California, for example, requires health care service plans to provide or authorize a second opinion by an appropriately qualified professional. Other states have similar mandates, though which conditions qualify and whether out-of-network consultations are included differ from state to state. Your state’s department of insurance can tell you what applies to your plan.
If you believe your insurer is not following the law or is acting in bad faith, you can file a complaint with your state’s department of insurance. These agencies investigate delays, denials, and unfair claim practices, and they have the authority to act.8National Association of Insurance Commissioners. How to File a Complaint and Research Complaints Against Insurance Carriers Filing a complaint does not guarantee a different result, but it creates a formal record and often prompts the insurer to take another look. The NAIC website links to every state’s consumer complaint page.