David P Ryan MD

Gastrointestinal Cancer, Hematologic Oncology

Chief, Hematology-Oncology, Clinical Director, MGH Cancer Center

55 Fruit StYaw 7eBoston, MA 02114
Phone+1 617-724-0245
Fax+1 617-724-3166

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Education & Training

Mass General Brigham/Brigham and Women's Hospital/Massachusetts General Hospital/Dana-Farber Cancer InstituteFellowship, Hematology and Medical Oncology, 1996 - 1999
New York Presbyterian Hospital (Columbia Campus)Residency, Internal Medicine, 1992 - 1996
Columbia University Vagelos College of Physicians and SurgeonsClass of 1992

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A self-designated specialty, subspecialty, or practice area neither implies nor is equivalent to ABMS board certification or the existence of specialized training by or competence of a physician or medical specialist.

Certifications & Licensure

MA State Medical License 1996 - 2027
American Board of Internal Medicine Medical Oncology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2013-2017
CMS Meaningful Use Stage 2 Certification Longitudinal Medical Record, Partners Healthcare System, 2013-2017
CMS Meaningful Use Stage 2 Certification OpTime Surgical 2014 Certified Module, Epic Systems Corporation, 2013-2017

Clinical Trials

Oxaliplatin, Fluorouracil, and External-Beam Radiation Therapy Followed by Surgery in Treating Patients With Locally Advanced Cancer of the Rectum
COMPLETED
PHASE1, PHASE2
Radiation Therapy and Either Capecitabine or Fluorouracil With or Without Oxaliplatin Before Surgery in Treating Patients With Resectable Rectal Cancer
UNKNOWN
PHASE3
Using Positron Emission Tomography to Evaluate the Effects of Bevacizumab on Intra-tumoral Pharmacokinetics of 5-fluorouracil in Metastatic Colorectal Cancer
COMPLETED
PHASE2

Publications & Presentations

PubMed

1 citations
Diagnostic Performance of PSMA PET/MRI in Characterizing LI-RADS 3 Observations in Patients with Cirrhosis.
Onofrio Antonio Catalano, Irun Bhan, Luigi Asmundo, William Robert Bradley, Mattia Fonderico
Journal of Nuclear Medicine. 2026-04-01
Effect of Liver Metastases on Survival in Microsatellite-Stable Metastatic Colorectal Cancer Treated with Immune Checkpoint Inhibitors.
Nussara Pakvisal, Leontios Pappas, Bennett A Caughey, Nora K Horick, Noelia Tarazona
Cancer Research Communications. 2026-02-01
1 citations
To contrast or not to contrast? Evaluating the diagnostic accuracy of hepatobiliary contrast agents in liver FDG-PET/MR: a prospective study.
Luigi Asmundo, Felipe Furtado, Francis Delaney, Mojtahed Amirkasra, Azadeh Hajati
European Journal of Nuclear Medicine and Molecular Imaging. 2025-10-01

Lectures

Optimizing Locoregional Management in the Context of Multidisciplinary Care
ASCO Gastrointestinal Cancers Symposium - San Francisco, CA - 1/25/2020

Other

Clinical features, staging, and treatment of anal cancer
Ryan DP, Willett CG
http://www.uptodate.com/contents/clinical-features-staging-and-treatment-of-anal-cancer
UpToDate, Wolters Kluwer Health - 2013-03-26
Ampullary carcinoma: Treatment and prognosis
Ryan DP, Castillo CF, Mamon H
http://www.uptodate.com/contents/ampullary-carcinoma-treatment-and-prognosis
UpToDate, Wolters Kluwer Health - 2012-07-19
Classification and epidemiology of anal cancer
Ryan DP, Willett CG
http://www.uptodate.com/contents/classification-and-epidemiology-of-anal-cancer
UpToDate, Wolters Kluwer Health - 2012-12-20

Press Mentions

Mass General Brigham Advances the Future of Early Cancer Detection and DiagnosisAugust 17th, 2026
Mass General Brigham Cancer Institute to Be Presenting Partner of the Boston 5K Road RaceApril 8th, 2026
MGB Cancer Institute President’s 1st Year: Lessons Learned and What’s AheadMarch 24th, 2026