Language: English
Gender: Male
WCM Physician (What is this?)
Breast Pathology
525 East 68th Street, Starr Pavilion, 1031
New York, NY 10065
P: (212) 746-2700 | F: (212) 746-8624
Call for appointment
(212) 746-2700

Personal Statement

As a surgical pathologist, my goal is to provide the highest quality care by making accurate diagnoses from histologic (tissue) samples and providing important information about prognostic and predictive factors for breast cancer patients. My strong relationships with clinical colleagues and basic scientists at Weill Cornell Medicine have helped me foster several translational research collaborations relating to breast disease. I enjoy the challenge of working in a large academic medical center with numerous opportunities for teaching residents, fellows, and medical students

View Biography


Board Certifications
  • Anatomic Pathology
  • Breast Pathology

Insurance Plans Accepted

The following represents most of the managed care plans accepted by this physician. If your insurance carrier does not appear here please contact the physician’s office as they may have individual contracts not included on this site.

* indicates this physician is no longer accepting new patients with this insurance plan.

  • AETNA [Medicare]
  • Aetna - Weill Cornell [POS]
  • Blue Priority Network
  • Emblem Select Care
  • Empire Blue Cross/Blue Shield [Mediblue (Senior)]
  • Empire Blue Cross/Blue Shield [PPO]
  • Empire Blue Cross/Blue Shield [HMO]
  • Empire Blue Cross/Blue Shield [EPO]
  • Empire Blue Cross/Blue Shield [Pathway X Enhanced]
  • Empire Blue Cross/Blue Shield [Pathway X]
  • Empire Blue Cross/Blue Shield HealthPlus
  • Empire Blue Cross/Blue Shield HealthPlus [CHP]
  • Fidelis Care
  • GHI [CBP]
  • Health First
  • Health Insurance Plan of NY (HIP) [Medicare]
  • Health Insurance Plan of NY (HIP) [Medicaid]
  • Health Insurance Plan of NY (HIP)
  • Medicare
  • Oxford Health Plans [Medicare Advantage]
  • Oxford Health Plans [Metro/Core/Charter]
  • Oxford Health Plans [Liberty]
  • Oxford Health Plans [Freedom]
  • Rockefeller University - CoreSource
  • UHC Compass
  • United Empire
  • United Health Care [Medicare]
  • United Health Care [Community Plan]
  • United Health Care
  • VNSNY CHOICE [Medicare]


  • M.D., Chicago Medical School, Rosalind Franklin University of Medicine and Science, 2008
  • B.S., Villanova University, 2003



Assistant Professor of Pathology and Laboratory Medicine
Weill Cornell Medical College

Assistant Attending Pathologist
NewYork-Presbyterian Hospital


Dr. D'Alfonso is a board-certified Anatomic Pathologist with subspecialty training and interest in Breast Pathology.

Prior to joining the faculty of the Department of Pathology and Laboratory Medicine, Dr. D'Alfonso completed residency training in Anatomic Pathology at New York-Presbyterian Hospital/Weill Cornell Medical College, where he served as Chief Resident. He subsequently pursued subspecialty fellowship training in breast pathology at Weill Cornell. His research interests are focused on the pathogenesis, diagnosis, and treatment of breast diseases, including breast cancer. Dr. D’Alfonso has published several peer-reviewed journal articles and book chapters relating to breast pathology. He has lectured at regional and national conferences and courses. Along with clinical responsibilities and research pursuits, Dr. D'Alfonso is actively involved in resident and medical student education.