About Haley Ellis, MD

Clinical Interests:

Treats:

Locations

Mass General Brigham Cancer Institute
55 Fruit St.
Boston, MA 02114
Phone: 617-724-4000

Medical Education

  • MD, University College Dublin
  • Residency, Washington University, Barnes-Jewish Hospital
  • Fellowship, Brigham and Women's Hospital
  • Fellowship, Dana Farber Cancer Institute
  • Fellowship, Mass General Hospital

American Board Certifications

  • Internal Medicine, American Board of Internal Medicine

Accepted Insurance Plans

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.


Research

In addition to clinical care, Dr. Ellis is a translational researcher specializing in cholangiocarcinoma in Dr. Nabeel Bardeesy's laboratory at MGH. Since her fellowship training, she has actively contributed to patient-centered research, connecting clinical observations to scientific investigations through a bench-to-bedside and bedside-to-bench approach. In the lab, patient-derived models are used to understand the biology of cholangiocarcinoma, explore mechanisms of response and resistance to targeted therapies, and develop novel therapeutic strategies. Dr. Ellis has received a number of awards and grants supporting these research endeavors, including an ASCO Conquer Cancer Young Investigator Award. Her enthusiasm for clinical/translational research is driven by a deep commitment to improving outcomes for patients with cholangiocarcinoma.

Publications

Reviews: Comments and Ratings

4.9out of 5(71 Ratings, 34 Comments)

August 2025

Dr Ellis is terrific


August 2025

I don't even know where to start! I did not walk out of the hospital I floated!! Dr. Ellis and Dr. [redacted] made me feel like I had hope, that is something I have not felt for a very long time! I am so grateful to have these doctors on my side thank you, thank you thank you!!


August 2025

Dr. Ellis is special. I know that she will guide me through this battle with cancer with the best and most advanced therapy possible. I value her advice. She has gotten me time I never thought I'd have. Her positive approach has helped me every treatment. I've seen the results. A note of appreciation for the staff [redacted]


July 2025

[redacted] Dr. Ellis was very good and accomplished and very friendly. And also, she was very, obviously very good at her field. So I appreciate that she did.


July 2025

This was my first time meeting her. She was very personable and easy to talk to,


July 2025

After my experience I considered myself lucky. Dr Ellis was sharp, personable professional. She was extremely positive and upbeat. Dr Ellis explained my situation and the possible processes/treatments that would be options going forward. She also explained were we were in that process, the timeline associated and the milestones along the way. She ... Read More


July 2025

Outstanding experience. Took the time to listen and answer my questions. Was compassionate, and hopeful.


July 2025

Absolutely loved Dr Ellis. She took so much time with us and explained our complex situation in terms we could understand and made sure we left with HOPE


June 2025

We could not be happier with Dr. Ellis. She knew our case inside and out, was kind, informative, proactive, and made sure we understood our case well. Her passion for her specialty was very comforting.


June 2025

I love the upbeat personality of my Doctor. She provides lot's of information. Listens to all my needs and gives wonderful feedback. Thank you ?

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