Second opinions

Mass General Brigham Online Second Opinion, Reviewed

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A second opinion from a large academic system is less about overturning your diagnosis than sharpening it. Studies of specialist re-review find that a diagnosis is far more often refined than reversed, yet the treatment plan still changes in a large share of cases. This page explains what a Mass General Brigham online review is, what the research supports, what it may cost, and how to send your records.

Last updated: July 2026

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What the Mass General Brigham online second opinion is

A remote second opinion at a large academic system means expert review of your existing case without traveling to Boston. You or your physician send the records, scans, and pathology; a subspecialist studies them and returns a written opinion, sometimes with a video visit to discuss it. Mass General Brigham is an integrated system built from major teaching hospitals, so its reviewers cover most specialties rather than a single disease area. Remote second-opinion services in this mold — records reviewed at a distance, a written report returned, an optional video consult — are now well documented across the large academic centers that offer them 1. As always, the operational details people most want — the fee, who is eligible, how long it takes, and which states or countries the program can serve — shift over time and are only reliable on the program's own page. This article is editorial: what the review is and what it is worth, not a directory.

More often refined than reversed

The most common outcome of specialist re-review is a sharper diagnosis, not a reversal. In a review of 286 patients referred to an academic general internal medicine service, only 12% had a final diagnosis that matched the referral exactly; 66% had the diagnosis refined or better defined, and 21% received a distinctly different final diagnosis 2. That middle number is the one people underestimate. A second opinion that keeps your diagnosis but adds precision — a subtype, a stage, an underlying cause — can still change everything that follows, because treatment is chosen off the details, not just the headline. This is why a second opinion is worth considering even when you are fairly sure the first diagnosis is right: refinement, not reversal, is the usual gift.

It changes what you do, not only what you have

A second opinion often changes what you do more than what you have. Among patients seen for a general internal medicine second opinion, a genuinely new diagnosis was established in 13%, but a new treatment was started in 56% 3. The gap between those two numbers is the point: even when the diagnosis is confirmed, the plan frequently shifts — a different medication strategy, a decision to watch rather than operate, or a referral that was not offered the first time. The value of a second opinion is measured in changed decisions, not only in corrected labels. For a big treatment choice, that is exactly the kind of change worth surfacing before you commit to a path that is hard to undo.

What re-reading the pathology adds

Where the diagnosis rests on a pathology slide, a second read carries specific weight. In a year-long review of 4,239 second-opinion pathology cases, 1.0% had a major discordance that changed management — a small percentage, but each one a case where the treatment plan would otherwise have been wrong 4. The rate is not uniform across tissue types: thyroid fine-needle aspiration showed the highest discordance, at 15.3% 4. That is why an academic review asks for the actual slides, and why subspecialty match matters — the pathologist who reads dozens of your specific specimen a month sees things a generalist may not. A one-percent management change sounds small until it is your one percent, and until you consider what the wrong plan would have cost.

Will it offend your doctor, and can you get your records?

Two worries stop people from asking: that a second opinion will offend the first doctor, and that they cannot get their records out. Both are largely unfounded. Seeking a second opinion is a normal, expected part of care, and most physicians support it; being entitled to copies of your records and pathology materials is part of that right 5. You can say plainly that you want another set of eyes and ask the office to help transfer the records. A clinician who reacts badly to a reasonable second-opinion request has told you something useful. For a serious diagnosis, the fear of seeming disloyal is not a good reason to skip a step that changes management as often as this one does.

What it costs and whether insurance helps

Cost depends on the route. A Mass General Brigham remote review sold as a standalone product is generally self-pay, and its fee — set by the program and subject to change — is only reliable on the program's own page. If your question is about surgery, though, Original Medicare covers a second opinion for medically necessary, non-emergency surgery, with the beneficiary paying 20% of the approved amount, and a third opinion if the first two disagree 6. Commercial plans vary widely, and an employer second-opinion benefit, where one exists, is often the cheapest route of all. Whether a plan will reimburse this specific review is worth confirming in writing before you pay, since a remote review from an out-of-network center is a common coverage gap.

Deciding whether to use it

A remote review from a system like this is most worth it when the stakes are high and the answer is not obvious — major surgery, a serious or rare diagnosis, or a plan you are not sure about. If you are comparing options, it helps to see the remote second opinion programs, compared and to know how to get a second opinion through your own doctor first, since a referred, in-network consultation may cost less. Mass General Brigham is one of several strong academic choices; for a specific cancer, a dana farber online second opinion or an md anderson second opinion might match the subspecialty better. Fame is not the deciding factor — volume in your exact condition is.

Common questions

No. A remote second opinion is a review, not a transfer. A subspecialist reads your records and returns a written opinion you and your own doctor can use to decide next steps. If you later choose to be treated there, that is a separate decision with its own scheduling, travel, and insurance questions. Many people use the review to confirm a plan they carry out closer to home.

Because it is built from major teaching hospitals, an integrated system reviews a broad range — cancer, neurological, cardiac, orthopedic, and complex internal-medicine cases among them. The reviewer is matched to your problem. The model is the same across specialties: records in, a written expert opinion out, sometimes with a video visit. What varies is which subspecialists are available and how often they see your specific condition.

Most programs give you a checklist and handle much of the transfer, but you drive the pace. You are entitled to your records, imaging, and pathology, and federal rules bar a clinic from blocking access to your electronic health information. Digital records move quickly; physical pathology slides may need to be mailed, which is often the slowest step. The review clock usually starts once everything has arrived.

For most questions that hinge on records, imaging, and pathology, a remote review gives you the same expert judgment without travel. Its main limit is that the reviewer cannot physically examine you, so a case that needs a hands-on exam or new testing may still require an in-person visit. For confirming a diagnosis or a treatment plan already worked up, the remote format is well suited.

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When to seek care now, not a review

  • —Sudden weakness or numbness on one side, slurred speech, or a severe sudden headache — signs of a possible stroke.
  • —Chest pain or pressure, especially with shortness of breath, sweating, or pain radiating to the arm or jaw.
  • —A fever with shaking chills during cancer treatment, or a fever within days of chemotherapy.
  • —Heavy uncontrolled bleeding, fainting, or sudden severe shortness of breath.

A remote second opinion is for planning, not emergencies. For any of these, call 911 or go to the nearest emergency room now.

This article describes what a remote academic second-opinion program is and what the evidence shows. It is not medical advice, not a directory, and not an endorsement. Details such as price, eligibility, and turnaround change — confirm them on the program's own page and decide with your own clinician.

References

  1. 1.Cleveland Clinic (2025). Virtual Second Opinions. Cleveland Clinic (my.clevelandclinic.org). link ✓That large academic centers run remote second-opinion services reviewing a patient's records and returning a written report across many conditions.
  2. 2.Van Such M, Lohr R, Beckman T, Naessens JM (2017). Extent of diagnostic agreement among medical referrals. Journal of Evaluation in Clinical Practice. doi:10.1111/jep.12747 ✓That among 286 academic internal-medicine referrals, 12% matched the referral diagnosis exactly, 66% were refined or better defined, and 21% were distinctly different.
  3. 3.Burger PM, Westerink J, Vrijsen BEL (2020). Outcomes of second opinions in general internal medicine. PLOS ONE. doi:10.1371/journal.pone.0236048 ✓That among general internal medicine second opinions, a new diagnosis was made in 13% and a new treatment started in 56%.
  4. 4.Farooq A, et al. (2021). Assessing the value of second opinion pathology review. International Journal for Quality in Health Care. doi:10.1093/intqhc/mzab032That among 4,239 second-opinion pathology cases, 1.0% had a management-changing major discordance, with thyroid fine-needle aspiration highest at 15.3%.
  5. 5.American Cancer Society (2024). Seeking a Second Opinion. American Cancer Society (cancer.org). link ✓That seeking a second opinion is normal and supported by most physicians, and that patients are entitled to copies of their records and pathology materials.
  6. 6.Centers for Medicare & Medicaid Services (2024). Second surgical opinions coverage. Medicare.gov. link ✓That Medicare Part B covers a second opinion for medically necessary, non-emergency surgery, with 20% coinsurance and a covered third opinion if the first two differ.

6 sources, numbered by first appearance. General health information, not medical advice. AI-assisted editorial content — citations link their sources. Editorial policy

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