Jennifer L Marti, M.D., FACS

*Site Director, Breast & Thyroid Surgery, NYP/LMH

*PI for COMET trial at Cornell (active surveillance for DCIS)

I am a surgeon specializing in benign and malignant breast and thyroid disease. At Weill Cornell Medicine, I am proud of our multidisciplinary teams that provide the most advanced treatment options available in the New York area, to our patients with breast and thyroid diseases. As a surgeon, my role is to help patients navigate this process and make the most informed decisions. 

I am a dual-fellowship trained surgeon, an Assistant Professor of Surgery at Weill Cornell Medicine and an Assistant Attending Surgeon at New York Presbyterian Hospital. Following medical school and general surgery residency at New York University School of Medicine, I completed advanced surgical fellowships at Memorial Sloan Kettering Cancer Center and Yale.   

My practice focuses on the treatment of benign and malignant disorders of the breast and thyroid. These conditions include breast cancer, breast masses, abnormal mammograms and breast biopsies, a family history of breast cancer, thyroid nodules, thyroid cancer, hyperthyroidism (such as due to Graves disease), thyroid cancer, and lipomas.

I have expertise in all aspects of breast surgery (including newer techniques such as nipple-sparing mastectomy), and thyroid surgery. 

In addition, we now offer patients with small papillary thyroid cancers the option of active surveillance, which can avoid unnecessary surgery. For patients with indeterminate thyroid nodules, I have published research on the optimal use of molecular assays such as Thyroseq and Afirma. 

I am also the PI for the COMET trial at Cornell. Some cancers, such as prostate cancer and thyroid cancer, occur in healthy persons and do not necessarily require treatment. At Cornell, women with a new diagnosis of Ductal Carcinoma In Situ (DCIS, also known as stage 0 breast cancer or ‘precancer’) identified on screening mammography may be candidates for a new approach of active surveillance (vigilant observation) instead of breast surgery. This approach is carried out as part of a national clinical trial called COMET (Comparison of Operative to Monitoring and Endocrine Therapy), which is offered at Cornell.  For more information, call the office or visit https://dcisoptions.org/comet.

I see patients at Weill Cornell on the upper east side at the David H Koch Center, and at Lower Manhattan Hospital downtown. Please call 646-962-4245 to arrange an in person or telehealth (video visit) appointment. 

Outside Imaging Review Instructions for New Patients 

Outside Pathology and Film Review Submission Instructions for New Cancer Patients

Learn more about Thyroid FNA at NYP/LMH 

Click here for answers to FAQ's regarding breast cancer 

Learn more about the COMET trial (active surveillance for DCIS)

Learn more about the Alliance A011202 trial (surgery vs radiation for axillary nodal disease)

Learn more about personalized breast cancer screening, via enrollment in the WISDOM trial