The short answer
Book the new oncologist before leaving the old one, transfer records and pathology slides yourself, re-check insurance and prior authorizations, and time the switch between cycles rather than mid-course.
Changing oncologists is a normal administrative request, not an accusation. You do not need permission and you do not have to explain your reasons.
Sequence matters: book the new consultation and confirm the records have arrived before you tell anyone you are leaving. Do not resign from your current team first.
Under the HIPAA right of access your provider generally must give you your records within 30 days, in electronic form if they hold them electronically, and cannot withhold them because you owe a bill.
Pathology slides and imaging discs move separately from the chart and are the slowest part. Start those requests a week before everything else.
Choose how you want to understand this
The full explanation.
Change the Order of Operations
Most gaps in treatment during a switch are caused by doing it in the wrong order. People tell their current oncologist they are leaving, the relationship cools, the records sit, and three weeks disappear before the new team has anything to work with.
Do it the other way round. Build the new arrangement quietly and completely, then close the old one. Nothing about this is dishonest — you are entitled to consult any physician you choose, and none of it obliges you to explain yourself.
Step 1: Book Before You Announce
Call the new practice's new-patient line and ask for the first available consultation. Tell them you are an active patient currently on treatment, because that usually routes you to a faster slot. Ask what they need before the visit — most want the pathology report, recent imaging, clinic notes, and a medication list, and many will request records on your behalf if you sign their release.
Step 2: Get the Records Moving, Including the Physical Ones
The chart, the slides and the images travel on three different tracks.
- Chart and reports. Under the HIPAA right of access you can request copies of your records and providers generally must respond within 30 days, in electronic form if they hold them that way. Electronic copies cannot be charged per page, and access cannot be withheld over an unpaid bill. Much of it is already downloadable from your patient portal.
- Pathology. Call the pathology department of the hospital where your biopsy or surgery was done. Ask for the glass slides and, if available, the paraffin block to be released to the new center's pathology department. You will sign a release; you may be asked to pay courier costs. Allow one to two weeks.
- Imaging. Ask the radiology file room for the actual images in DICOM format on a disc or via an image-sharing link. The report alone is not enough for a radiologist to re-read.
Step 3: Ask for a Treatment Summary by Name
Request a written treatment summary from your current oncologist. It should state your diagnosis and stage, biomarker and genomic results, every drug with dose and cycle dates, cumulative doses that constrain future options (anthracyclines, bleomycin, radiation fields and dose), surgeries, and the toxicities you have had. A new oncologist can rebuild this from raw notes, but it takes time you do not have to give away.
Step 4: Redo the Insurance Layer
Assume nothing transfers. Confirm the new physician and the new facility are both in network. Ask whether your plan needs a fresh referral. Then ask the new office to submit prior authorization for your current treatment at booking. Under the CMS interoperability and prior authorization rule, most Medicare Advantage plans, Medicaid and CHIP managed care plans and many Marketplace plans must decide standard requests within seven calendar days and expedited requests within 72 hours, and must give a specific reason for a denial. If a delay would jeopardize your health, ask explicitly for the expedited pathway.
Step 5: Time the Switch to the Treatment, Not the Calendar
- Between chemotherapy cycles. Schedule the first new visit inside the recovery window so the next cycle lands on time.
- Never mid-radiation. Finish the prescribed course. Unplanned interruptions can reduce its effectiveness. Move afterwards.
- Around surgery. If surgery is done and adjuvant therapy is planned, the two teams need to speak. Ask for that call rather than assuming the note covers it.
- On oral therapy. Hold at least 30 days of medication before the handover so a pharmacy authorization gap does not become a treatment gap.
Scripts
To the current office: "I've decided to transfer my oncology care to Dr. X at Y. Please send my complete records and a treatment summary to their office, and release my slides to their pathology department. Can you confirm when that has gone out?"
To the new office: "I'm mid-treatment. My next cycle is due on [date]. What do you need from me to keep that date?"
If records stall: "Please tell me the date my request will be fulfilled. My understanding is that I'm entitled to these within 30 days."
The rights and insurance rules above are US-specific.
Sources
Words to know
Tap any term to see what it means.
Common questions
Will my current oncologist refuse to send my records or drop me?
Your records are yours by federal right, and a practice cannot condition release on your staying or on paying an outstanding balance. Practices are also expected not to abandon a patient: most will continue urgent care and prescriptions for a reasonable handover period. If a practice stalls or refuses to release electronic records, that may be information blocking under the 21st Century Cures Act, and you can file a complaint through ONC's reporting portal.
When in a treatment cycle is the safest time to switch?
Between cycles, in the window after one cycle's recovery and before the next is due, with the new team's first appointment inside that window. Avoid switching between a surgery and its planned adjuvant therapy without both teams talking, and never pause an in-progress radiation course — interruptions can reduce its effectiveness. If you are on oral therapy, make sure you hold at least a 30-day supply before the handover.
Do I have to tell my current oncologist why I am leaving?
No. "I've decided to transfer my care to Dr. X at Y. Could you please send my records?" is a complete sentence. If you want to give feedback, do it separately and in writing to the practice manager. Keeping the transfer conversation neutral makes it more likely the handover note is thorough, which is what you actually need.
Will my insurance cover the new oncologist?
Check three things before the first visit: that the physician and the facility are both in network, whether your plan requires a new referral, and whether existing drug authorizations transfer. They usually do not — authorizations are commonly tied to the billing practice. For most Medicare Advantage, Medicaid managed care and many Marketplace plans, decisions on standard prior authorization requests are due within seven calendar days and expedited requests within 72 hours.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Speak With Trained Specialists & Human Navigators
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
Talk to a trained cancer information specialist
Free, confidential assistance from NCI Cancer Information Service via phone, chat, or email.
Contact your oncology team
Locate after-hours contact numbers, portal messages, or urgent triage phone lines.
Find a patient navigator
Get one-on-one help with appointments, logistics, translation, and care coordination.
Find a genetic counselor
Discuss inherited mutation risk, family history, and genetic testing options.
Find an oncology social worker
Access emotional counseling, family support groups, and mental health resources.
Find a financial navigator
Locate copay assistance foundations, grant programs, and lodging/travel support.
Find a clinical-trial specialist
Search matching studies and speak with NCI trial information specialists.
Get urgent help
Immediate emergency guidance for fever (>100.4°F during chemo), severe pain, or shortness of breath.
Help Us Improve This Guide
Did this explanation answer your question and help you determine your next step?
Know someone who needs this?
Plenty of people are looking for something like this and do not know where to start. If this would help a friend or someone you love, send it on — we have written an opening line so you do not have to stare at an empty message. You can change every word of it.
Your message is written and sent in your own email or messaging app — we never see who you send it to, and nothing is added to any list.
Where to get help with this, by name
A hospital social worker or financial navigator is the best first call if you have one. If you do not, these organisations help at no cost to you.
- Patient Advocate Foundation — (800) 532-5274. Case managers take on insurance appeals, denials and medical debt with you. Free.
- TotalAssist (Patient Advocate Foundation's copay programme, merged with the PAN Foundation in 2026) — 866-512-3861. Help with medication copays, coinsurance and deductibles, insurance premiums, and office-visit and administration charges on the day of treatment, across nearly 150 conditions.
- CancerCare — 800-813-HOPE (4673). Oncology social workers, free counselling and support groups. Limited financial help with transport, home care, child care and lodging for people in active treatment who meet their income guidelines — funding is first-come, first-served, so call to ask what is open.
- Triage Cancer — 424-258-4628. Free legal and financial navigation: insurance, employment rights, disability.
- Blood Cancer United (formerly the Leukemia & Lymphoma Society) — (800) 955-4572. Information Specialists answer questions on treatment, insurance and financial problems.
- HealthCare.gov — 1-800-318-2596. For questions about the external review process — the independent review your insurer is required by law to accept.
Your state Department of Insurance regulates insurers and takes consumer complaints. On Medicare, your State Health Insurance Assistance Program (SHIP) gives free one-to-one counselling. If a specific drug is the problem, ask the manufacturer about its patient assistance programme.
Phone numbers checked 31 July 2026. Programmes and eligibility change — if a number has moved, please tell us.
Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.
Written by: Cancer ExplainedSources last checked: 2026-07-30 what this meansLast updated: 2026-08-10Next planned review: 2027-07-30
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status — Source checked. This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.
General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
Read more about our editorial process, our use of AI, and our corrections policy.
Spotted a problem? Report an error — a factual mistake, broken or outdated source, confusing wording, or anything that seems unsafe. Please do not include names, medical record numbers, dates of birth, addresses, or other identifying medical information in your report.
After using this page, do you understand what to do next?
Anonymous — we only record the answer, never who gave it.
Related articles
Still have questions?
Educational answers, plain language
Free to print and share