Marc Wallack, M.D., is a distinguished medical professional known for his impactful contributions to the healthcare field. As a seasoned physician, he has excelled not only in inpatient care but has also played a pivotal role in advancing medical knowledge, promoting health equity, and training generations of future surgeons.

He has held various prestigious hospital positions, showcasing his leadership and expertise in the medical field. Notably, he served as the head of the Section of Surgical Oncology at Washington University's Barnard Cancer Center in St. Louis, Missouri, where his contributions significantly impacted the field. Additionally, he held the esteemed position of chairman of the department of surgery at Mount Sinai Medical Center of Greater Miami, solidifying his leadership in healthcare. Dr. Wallack also served as chairman of surgery at St. Vincent's Hospital and Medical Center of New York. He is currently chair of surgery and program director at NYC Health + Hospitals/Metropolitan in New York City.

His illustrious career includes a myriad of notable achievements and contributions. A significant facet of his career involves his remarkable role as an educator of surgical residents, serving as a program director for 46 years. He was early to recognize the importance of supporting and training women who aspired to be general surgeons. In his Residency Programs, he was known for having women constitute upwards of 40 percent of his graduating chief residents.

He has garnered significant recognition for his contributions to the medical field. Notable honors, achievements, and awards include accolades from the American Cancer Society and the Board of Regents of the American College of Surgeons Advisory Council for General Surgery. His consistent mentions as a Top Doctor in the New York City Metro Area underscore his reputation for excellence in patient care. Furthermore, Dr. Wallack has been honored with an impressive 13 annual awards from New York Medical College for "Surgical Teacher of the Year," highlighting his exceptional dedication to surgical education and mentorship.

Guided by a philosophy rooted in lifelong learning, Dr. Wallack emphasizes the importance of education and research to his surgical trainees. His legacy extends far beyond his professional achievements. His influence on the medical community, commitment to improving healthcare, and dedication to educating future surgeons will continue to inspire future generations of healthcare professionals.

Education

  • Fellowship, Immunology and Oncology, The Wistar Institute of Anatomy and Biology
  • Residency, General Surgery, Hospital of the University of Pennsylvania
  • M.D., University of Pittsburgh
  • B.S., Biology, Albright College

Areas of Expertise

  • Surgical Oncology
  • Melanoma
  • Sarcoma

Honors and Awards

  • Fellow, American College of Surgeons
  • American College of Surgeons - Member, Academy of Master Surgeon Educators (MAMSE), 2024
  • New York Medical College - Surgical Teacher of the Year, 1994-2003; 2008-2010 

Publications

  • Reddy M, Goicoechea M, Wallack MK, et. al. "Promoting early detection of necrotizing soft tissue infection of the upper extremity in patients with history of breast cancer: a case report." BMC women's health, 25(1), (2025) 417. doi: 10.1186/s12905-025-03932-8
  • Valenzuela CD, Finlay D, Sabry Z, et. al. "Gracilis Muscle Flap After Superficial Inguinal Lymphadenectomy in an Irradiated Inguinal Field." The American surgeon, 89(4), (2023) 1218-1221. doi: 10.1177/0003134820982850
  • Margulies IG, Zwillenberg J, Chadda A, et. al. "Monitoring and Developing a Volunteer Patient Navigation Intervention to Improve Mammography Compliance in a Safety Net Hospital." Journal of oncology practice, 15(4), (2019) e389-e398. doi: 10.1200/JOP.18.00424
  • Akram W, Degliuomini J, Wallack MK, et. al. "Unicentric Castleman's Disease Masquerading as a Carcinoid Tumor of the Small Intestine." The American surgeon, 82(9), (2016) e287-9.
  • Donaire M, Mariadason J, Stephens D, et. al. "Carcinoma of the colon in an adult with intestinal malrotation." Case reports in surgery, 2013(), (2013) 525081. doi: 10.1155/2013/525081
  • Kwok-Oleksy C, Berenji M, Argerakis NG, et. al. "Subungual melanoma of the great toe in a Hispanic male with Down syndrome: a case report and review of the literature." The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons, 51(3), (2012) 337-41. doi: 10.1053/j.jfas.2012.01.013
  • Feeney JM, Wallack MK. "Taking the terror out of terrorism: mortality data after 9/11." Lancet (London, England), 378(9794), (2011) 851-2. doi: 10.1016/S0140-6736(11)61309-3
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Memberships and Affiliations

  • American Association for Cancer Research
  • American Society of Clinical Oncology
  • American Surgical Association
  • Association of Program Directors in Surgery
  • Central Surgical Association
  • New York Surgical Society
  • Society of Surgical Oncology

Teaching Responsibilities

  • Program Director, Surgical Residency Training Program, NYMC/Metropolitan Hospital Center
  • Mentor, NYMC MS3 Clerkship Program