Jennifer L Marti, M.D., FACS
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Jennifer L Marti, M.D., FACS


Profile Photo of Jennifer L Marti, M.D., FACS
Accepts New Patients
Gender: Female
Language: English, Spanish


Personal Statement

♦ Virtual Visit: Delivering the same level of world-class care, with exceptional convenience. 

Please call (646) 962-4245 to schedule an in person or virtual/video appointment.

Working at Weill Cornell Medicine, I am proud to be a member of superb multi-disciplinary teams that take care of patients with breast and endocrine diseases. As a breast and endocrine surgeon, my primary objective is improving my patients’ quality of life, and providing every patient with the information they need to make informed decisions through treatment. This is a process that we will go through together, in which patients are empowered and in the driver’s seat from day one.  

I strive to give my patients the best possible surgical outcome, with great consideration to everyone’s individual perspectives and preferences, so that my patients are intimately involved in every step of their care.  

What especially excites me about my field is the chance to positively impact my patients, who are often going through one of the most uncertain and vulnerable periods of their lives. I feel very fortunate that patients place their trust in me as their surgeon. It is great responsibility that I never take for granted. This is a truly exciting era for oncology – emerging research and new treatments make these areas exciting and dynamic fields.

Specialties and Expertise


  • Surgery
  • General Surgery


  • Breast Cancer
  • Breast Surgery
  • Nipple Areola Sparing Mastectomy
  • Breast Disease
  • Cancer of Nipple and Areola of Female Breast
  • Breast Biopsy
  • Sentinel Node Biopsy For Breast
  • Breast Cancer Surgery
  • Breast Lumpectomy
  • Removal of Breast Lesion
  • Lumpectomy
  • Minimally Invasive Breast Surgery
  • Thyroid Cancer
  • Hyperthyroidism
  • Endocrine Tumor
  • Endocrine Gland Cancer
  • Endocrine Disease
  • Endocrine Cancer
  • Minimally Invasive Surgery
  • Endocrine Surgery
  • Sentinel Node
  • Lipoma
  • Lymph Node Removal Surgery
  • Central Venous Catheter
  • Thyroid Nodule
  • Multiple Thyroid Nodules
  • Thyroid Nodules
  • Primary Thyroid Cancer
  • Thyroid Disease
  • Thyroid Disease In Pregnancy
  • Thyroid Disease During Pregnancy
  • Thyroid Disease Affecting Pregnancy
  • Thyroid Goiter
  • Thyroid Disorder
  • Thyroid Condition
  • Thyroid Surgery
  • Pediatric Thyroid Surgery
  • Thyroid Cancer, Medullary Carcinoma
  • Endocrine Disorder
  • Graves' Disease


*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

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


Honors and Awards

Honors and Awards

Super Doctors 2020

Top 25% Poster Presenter, Society of Surgical Oncology Annual Cancer Symposium, 2019

Castle Connolly Top Doctors, New York Metro Area, 2016, 2017, 2018, 2019, 2020

Exceptional Women in Medicine Award, Castle Connolly, 2017, 2020

New York Rising Stars, Super Doctors, 2013, 2015, 2016


Board Certifications

  • American Board of Surgery

Clinical and Academic Positions

  • Assistant Attending Surgeon - NewYork-Presbyterian Hospital
  • Assistant Professor of Surgery - Weill Cornell Medical College, Cornell University

Education and Training

  • M.D., New York University School of Medicine, 2004
  • B.S., University of Michigan, 1999


Insurance Plans Accepted

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

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

  • AETNA - Medicare
  • Aetna - Weill Cornell - POS
  • Aetna-NYP - EPO/POS
  • Affinity Access
  • Affinity Health Plan
  • AgeWell New York
  • Amida Care
  • Emblem Select Care
  • Empire Blue Cross/Blue Shield - Blue Access
  • Empire Blue Cross/Blue Shield - Blue Connection
  • Empire Blue Cross/Blue Shield - EPO
  • Empire Blue Cross/Blue Shield - HMO
  • Empire Blue Cross/Blue Shield - Mediblue (Senior)
  • Empire Blue Cross/Blue Shield - PPO
  • 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)
  • Health Insurance Plan of NY (HIP) - Medicaid
  • Health Insurance Plan of NY (HIP) - Medicare
  • Medicaid
  • Medicare
  • Oxford Health Plans - Freedom
  • Oxford Health Plans - Liberty
  • Oxford Health Plans - Medicare Advantage
  • Oxford Health Plans - Metro/Core/Charter
  • Rockefeller University - Trustmark
  • United Empire
  • United Healthcare
  • United Healthcare - Community Plan
  • United Healthcare - Medicare
  • United Healthcare Compass
  • VNSNY CHOICE - Medicare
  • WellCare of NY
  • WorldWide Medical

Locations and Appointments

External Relationships

External Relationships

Relationships and collaborations with for-profit and not-for profit organizations are of vital importance to our faculty because these exchanges of scientific information foster innovation. As experts in their fields, WCM physicians and scientists are sought after by many organizations to consult and educate. WCM and its faculty make this information available to the public, thus creating a transparent environment.

No External Relationships Reported