Diagnosed with breast cancer? Get clarity on what comes next.  Learn more

EXPERT
      CANCER
             CARE,
Accelerated

Expert
CANCER
CARE,
Accelerated

Defiant gets you answers in days, not months — with the right plan, the right doctors, and Dana-Farber behind every step.
What defiant does

We get you to the best cancer care in the country — in days, right where you live.

Today

Breast Concerns or Abnormal Results

Get seen quickly for breast symptoms or abnormal results—without waiting on a PCP referral
Within days

Understand Your Diagnosis

Understand your breast cancer diagnosis, 
likely next steps, and what to ask
24/7

Ongoing 360 Support & Advocacy

Navigate your entire breast cancer journey from diagnosis through treatment planning
FAST
We move fast
Most cancer diagnoses take 3–4 months from first suspicious finding to first treatment. Defiant gets you there in days — up to 90% faster, without skipping a step.
RIGHT
We get it right
Our clinicians use diagnostic and treatment-planning tools built by Dana-Farber Cancer Institute — Harvard's cancer hospital, ranked top 3 in the U.S. for 25 years running.
BEST
We find you the best doctor, close to home
Sometimes the best cancer care is close to home. Sometimes you need a world expert. We help you tell the difference — and make the right call for you and your family.
HOW IT WORKS

Three steps between worry and a plan you can trust.

We work alongside your care team—supporting you in the moments in between visits. We don’t replace your doctors. Instead, we help patients get:
1
Quality, accelerated diagnostic testing
Most cancer diagnoses take 3–4 months from first suspicious finding to first treatment. Defiant gets you there in days — up to 90% faster, without skipping a step.
2
Expert referral to the best doctor, close to home
An expedited appointment, arranged oncologist-to-oncologist — with your tests ordered at the visit, not weeks after it.
3
Dana-Farber care plan review
Before treatment begins, your care plan is reviewed against the standards of one of the world's leading cancer centers.
Clarity When It’s Hardest
We explain results and medical language in plain English so you know what’s happening and what comes next.
Faster Movement 
Through Care
We help reduce delays by coordinating imaging, appointments, and follow-ups so you are not stuck waiting or chasing the system.
Expert Navigation
We guide you through the breast health system with experience and intention. Most women go through this once. We do it every day.
Advocacy That Prepares You
We help you walk into appointments informed and confident, with the right questions and a clear understanding of your options.
Support during the In-Between
We stay with you during the waiting and uncertainty so you do not have to carry it alone.
Working With Your Doctors
We support your care team by helping you understand, prepare, and move forward more smoothly. We do not replace your doctors.
Meet your care team

An oncology physician, nurse practitioner, and care navigator — matched to you.

When you sign up, you're matched with a Defiant care team — an oncology physician, nurse practitioner, and care navigator who stand with you from first call through clear plan.
Defiant Care Team
Meet Dr. Christina Palmer
Meet
Dr. Christina Palmer
Dr. Christina Palmer is a board-certified primary care physician with over a decade of experience. She is dedicated to making expert care more accessible, with a focus on early detection, prevention, and timely treatment, especially for complex conditions and cancer care. She combines primary care with thoughtful use of technology to help patients get answers faster.
She earned her medical degree from the University of Pennsylvania and completed her training at UCSF. Licensed nationally, she is committed to guiding patients through every stage of their health journey.
Nationally Licensed
Board-Certified
Oncology Specialist
Oncology Specialist
Oncology Specialist
Defiant Care Team
Meet
Dr. Payal Srinivasa
Meet Dr. Payal Srinivasa
Dr. Payal Srinivasa is a board-certified OB/GYN and physician leader with 15 years of experience. She’s passionate about improving patient access to high-quality, evidence-based care, with a focus on trauma-informed care and health equity. She has helped patients through life’s most joyful and challenging health experiences and is an advocate for using technology to enhance care—without losing the human touch.
Dr. Srinivasa earned her medical degree from Boston University and a Master’s in Health Care Innovation from the University of Pennsylvania. She’s received awards for patient experience and medical education.
Nationally Licensed
Board-Certified
Oncology Specialist
Oncology Specialist
Oncology Specialist
HOW WE HELP

Every patient.  Every step.  Most cancers.

Clarity when it’s hardest
We translate scans, results, and pathology into plain English so you know what's happening and what comes next.
Faster movement through care
We coordinate imaging, biopsies, and specialist appointments so you're not stuck waiting or chasing the system.
The right doctor for you
Sometimes the best care is close to home. Sometimes you need a world expert. We help you tell the difference — and make the right call for you and your family.
Expert navigation, powered by Dana-Farber
Most people go through cancer once. We do it every day — using diagnostic and treatment-planning tools built by Harvard's cancer hospital.
Through every step
Walk into every appointment informed and confident. Between appointments, we stay with you through the waiting and uncertainty — you don't carry it alone.
Harvard-quality care, from a doctor close to home
We support your existing care team during the most anxious window of your life. We don't replace them.
Clarity When It’s Hardest
We explain results and medical language in plain English so you know what’s happening and what comes next.
Faster Movement 
Through Care
We help reduce delays by coordinating imaging, appointments, and follow-ups so you are not stuck waiting or chasing the system.
Expert Navigation
We guide you through the breast health system with experience and intention. Most women go through this once. We do it every day.
Advocacy That Prepares You
We help you walk into appointments informed and confident, with the right questions and a clear understanding of your options.
Support during the In-Between
We stay with you during the waiting and uncertainty so you do not have to carry it alone.
Working With Your Doctors
We support your care team by helping you understand, prepare, and move forward more smoothly. We do not replace your doctors.
What defiant does

Defiant is an expert breast health care navigation service

We support women through critical breast health moments, from first symptoms to breast cancer diagnosis and care.  We help women with:
Today

Breast Concerns or Abnormal Results

Get seen quickly for breast symptoms or abnormal results—without waiting on a PCP referral
Within days

Understand Your Diagnosis

Understand your breast cancer diagnosis, 
likely next steps, and what to ask
24/7

Ongoing 360 Support & Advocacy

Navigate your entire breast cancer journey from diagnosis through treatment planning
Today

Breast Concerns or Abnormal Results

Get seen quickly for breast symptoms or abnormal results—without waiting on a PCP referral
Within days

Understand Your Diagnosis

Understand your breast cancer diagnosis, 
likely next steps, and what to ask
24/7

Ongoing 360 Support & Advocacy

Navigate your entire breast cancer journey from diagnosis through treatment planning
HOW IT WORKS

You don’t have to navigate this alone

Breast health care can feel overwhelming when timing matters and answers are unclear. 
Most women go through this once. We do it every day.
How we help, based on where you are.
Breast Concerns or Abnormal Results
Fast-Track Breast
Health Appointment
Meet virtually with a Defiant breast health clinician and get fast-tracked into imaging without a PCP referral.
Review symptoms or abnormal findings
Decide which imaging is needed
Fast-track mammogram and ultrasound testing
Breast Concerns or Abnormal Results
Understand Your Diagnosis
Diagnosis
Clarity Guide
Understand your breast cancer diagnosis in plain English so you know what it means and what is likely next.
A clear explanation of your diagnosis
Likely next steps
Questions for your first oncology appointment
Help finding an oncology team, if needed
Understand Your Diagnosis
Ongoing 360 Support & Advocacy
Full Navigator
Support
Our most comprehensive level of care navigation.
Our clinicians stand with you through diagnosis and treatment planning and help you:
Find and evaluate oncology teams
Coordinate tests and follow-ups
Prepare for appointments and decisions
Ongoing 360 Support & Advocacy
Who WE ARE

Co-founded by Dana-Farber Cancer Institute

Defiant Health was co-founded by a global leader in cancer care.
Dana-Farber Cancer Institute is a Harvard Medical School teaching affiliate and National Cancer Institute-designated Comprehensive Cancer Center, recognized globally for cutting-edge cancer research and compassionate clinical care.

This partnership leverages Dana-Farber's leading clinical standards and brings that expertise directly to your care with Defiant—ultimately working to advance Dana-Farber’s mission to make world-class cancer care accessible to all patients, wherever they are. All clinical services are provided by Defiant Health and its partners.
PATIENT STORIES

Why patients choose Defiant

These stories are from our breast cancer patients — where diagnostic delays are some of the worst in healthcare. The methods we built there now move every Defiant patient through faster, whatever their cancer.
In a time where you're scared for your literal life, getting answers quickly and getting clarity quickly is so important.
— Meghan, 39
They found 3 masses in my breast. I don’t think I have ever cried so much in my life... but Defiant was there for every step.
— Priya, 51
It's maddening that it takes so long to get a diagnostic mammogram. If not for you, I would have waited another 10 days... that’s not okay.
— Allison, 29
I was so impressed by Dr. Palmer’s person-centered approach. I truly felt that she put my needs first and advocated for me well.
— Maya, 44
152
The average American waits 152 days between a suspicious finding and a cancer diagnosis. Defiant patients wait days.
Source: BluePath Solutions analysis of U.S. claims data, presented at ESMO 2022
Start your path forward for just $99
If gathering your records feels overwhelming, you can add our Records Retrieval Service for $49. Our team will request and organize your records for you, and your review will start as soon as everything is received.
Book appointment

CLARITY

Every cancer diagnosis deserves answers in days, not months — with the right plan, the right doctors, and Dana-Farber behind every step.
Talk to our team

Starts

Here

Every cancer diagnosis deserves answers in days, not months — backed by Dana-Farber's clinical intelligence. Defiant is how you get there.
Talk to our team