You can check a doctor’s credentials through official channels: confirm their medical license with your state medical board, and confirm board certification through the official verification services of the certifying boards themselves — in the United States, most specialist certification can be checked through the American Board of Medical Specialties’ verification route or directly with the member board that issued it. Checking takes minutes, it is a normal thing patients do, and it tells you the doctor’s training and standing have been independently verified.
Key Takeaways
- A medical license and board certification are different things: a license is the legal permission to practise, issued by a state; certification is a voluntary, additional credential from a specialty board.
- Verify through official sources only — your state medical board for licensing, and the certifying board or the American Board of Medical Specialties’ verification service for certification.
- Hospital and cancer center profiles are a useful starting point but are summaries; the official registers are the ground truth.
- Checking credentials is normal and expected. No good doctor is offended by a patient who verifies.
- Credentials are one factor among several — fit, communication, and your care team’s recommendation matter too. Trust, but verify, then decide as a whole person.
License vs Certification: Two Different Checks
People often use “credentials” as one word for several different things, and separating them makes checking much easier. A medical license is issued by the state in which the doctor practises. It is the legal baseline: it says the doctor met the state’s requirements to practise medicine there, and it is maintained — and can be disciplined — by the state medical board. Board certification is different: it is granted by a specialty board, an independent organisation for a field such as medical oncology, surgery, or radiation oncology, after the doctor completes training in that specialty and passes its examinations, with ongoing requirements to stay certified. A doctor can be licensed without being board certified in the specialty they practise — which is exactly why the second check exists.
There is also the question of where a doctor practises and in what role: whether they are part of your cancer center’s team, what their specialty focus is, and how they fit into your wider care. Our pillar guide to navigating breast cancer care sets out how the pieces of care fit together, and our guide to finding a breast cancer specialist covers choosing who to see in the first place. This article covers the verification step itself.
| Medical license | Board certification | |
|---|---|---|
| Issued by | Your state’s medical board | An independent specialty board |
| What it confirms | Legal permission to practise medicine in that state | Completed specialty training and passed the board’s examinations, with ongoing requirements |
| Required? | Yes — no license, no practice | Voluntary, but widely expected of specialists |
| Where to verify | State medical board’s official license lookup | The certifying board, or the American Board of Medical Specialties’ verification service |
Checking a Medical License
Every state medical board maintains a public license lookup. The route is the same everywhere, even though the websites differ: find your state medical board’s official website — state government sites are the safe destination — use its license verification or licensee lookup tool, and search by the doctor’s name. The result typically confirms whether the license is active and shows basic details such as the license type. Some boards also publish whether there has been disciplinary action; what is shown varies by state.
Two cautions. First, name matching: common names produce multiple results, so check middle initials, specialty, and practice location against the person you mean. Second, source discipline: commercial doctor-rating sites and profile aggregators are not official registers — they can be out of date or simply wrong. Use them, if at all, only as a pointer, and confirm anything that matters on the board’s own site. If you cannot find a doctor at all in the state lookup, that is worth a calm follow-up question to the practice or facility: there is usually an ordinary explanation, such as a recent move between states, but asking is reasonable.
Checking Board Certification
For certification, there are two official routes. The first is the American Board of Medical Specialties — the umbrella organisation for the major certifying boards in the United States — which offers a public verification service through its official website, where you can search for a doctor and see whether they hold certification from one of its member boards, and in what specialty. The second route is the individual member board for the specialty in question — for example, the board responsible for internal medicine and its subspecialties, including medical oncology, or the boards for surgery or radiation oncology. Each maintains its own verification lookup on its official website.
When you check, note three things: the specialty named — certification is in a specific field, and a certificate in one specialty does not speak to another; whether the certification is shown as current; and whether the name and details match the doctor you are checking. If a doctor’s profile describes them as “board eligible,” that is a different status from certified — it generally means they have completed, or are completing, the training pathway but have not yet passed or completed certification. It is a phrase worth noticing precisely because the two sound alike. For wider context on official health information, the National Cancer Institute at cancer.gov and the American Cancer Society at cancer.org are reliable starting points — though neither replaces the boards’ own registers for verification.
Other Signals Worth Reading
Beyond the two registers, a few ordinary sources add honest signal. The doctor’s profile on their hospital or cancer center’s official website usually states their specialty, training background, and role — summary information, but from the institution itself. Whether a doctor is part of the team at the center where you are being treated connects to the wider question of how to choose a cancer center, since strong centers vet the specialists who practise in them. And your existing care team’s view counts: when you are referred onward, the referring doctor is staking their own judgement on the recommendation, which is why referrals carry weight.
You can also simply ask the doctor. At a first appointment, entirely fair questions include where they trained, what their specialty focus is, and how much of their practice is devoted to breast cancer. Our toolkit of questions to ask when visiting a cancer center includes more in this spirit. A doctor who answers such questions straightforwardly is telling you something real about how they practise — and if you later want another perspective entirely, our guide to second opinions for breast cancer explains how that process works.
What Checks Cannot Tell You
Verification has limits, and knowing them keeps the exercise in proportion. A license and a certificate confirm training, standing, and the absence of certain problems — they do not measure how well a doctor listens, how clearly they explain, or whether their style suits you. They do not capture how a particular doctor would approach your individual case, because individual cases differ and that judgement is formed in the consultation, not the register. And a clean record is a snapshot of official standing, not a character reference.
So use the checks for what they are: a foundation. Confirm the license is active, confirm the certification is real and current, and then weigh the human factors — communication, trust, your team’s recommendation, your own comfort — on top of that verified base. If anything in a check surprises you or does not add up, raise it factually with the practice or your referring doctor before drawing conclusions; registers lag, names collide, and most discrepancies have mundane explanations. What you are building is informed confidence — the sense, before treatment decisions begin, that the people advising you are who they say they are.
Questions to Ask Your Doctor
- What is your specialty, and are you board certified in it?
- Where did you do your specialty training?
- How much of your practice is focused on breast cancer?
- Will you be my main doctor for this part of my care, and who else is on my team?
- If I would like a second opinion at any point, how is that usually arranged here?
Frequently Asked Questions
Is it rude to check a doctor’s credentials?
No. Verification is public precisely so that patients can use it, and hospitals, insurers, and employers check the same registers as a matter of routine. You do not need to announce that you have checked — but there is nothing to hide if it comes up. Considering a doctor’s background is part of being an engaged patient.
What does “board eligible” mean — is that the same as certified?
No. Board certified means the doctor has completed the board’s requirements, including its examinations. Board eligible generally means the doctor is on, or has completed, the training pathway but has not yet completed certification. It is a legitimate status for a doctor early in a specialty career, but it is not the same credential, and profiles should not blur the two.
I found several doctors with the same name in the lookup. How do I know which is mine?
Match the details: specialty, practice location, and any middle initial or suffix shown. Your doctor’s hospital profile will usually give you the exact name form and location to check against. If you are still unsure, ask the practice to confirm — a reasonable question with a quick answer.
Does board certification mean a doctor is better than one without it?
It means their specialty training and knowledge have been independently examined and are maintained to the board’s requirements — a meaningful, verifiable signal. It is not, by itself, a ranking of doctors: experience, focus, communication, and fit for your particular situation all matter as well. Treat certification as a strong foundation fact, not the whole decision.
What if a check shows something unexpected, like a lapsed certification?
Do not panic, and do not assume the worst — records can lag behind renewals and administrative updates. Raise what you found with the practice or your referring doctor and ask for an explanation. If the answer does not satisfy you, that is useful information in itself, and you are entitled to seek care elsewhere or ask for a different referral.
Related Articles
- Navigating Breast Cancer Care: A Complete Guide
- How to Find a Breast Cancer Specialist
- How to Choose a Cancer Center: Factors Worth Weighing
- Questions to Ask When Visiting a Cancer Center
- Second Opinions for Breast Cancer: When and How to Ask
- Your First Visit to a Cancer Center: What to Expect
This article is for general educational purposes only and is not medical, legal, or financial advice. It does not replace professional care. Talk to your doctor or care team about your own situation. If you think you may have a medical emergency, call 911.