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Andrew Jennis, MD

Andrew Jennis, MD

Board Certifications: Hematology, Internal Medicine and Medical Oncology

Languages: English

Locations: Hackensack, NJ and North Bergen, NJ

Dr. Andrew Jennis specializes in medical oncology, hematology and gastrointestinal oncology, and has been treating patients in New Jersey for more than 20 years. Dr. Jennis is actively involved in gastrointestinal oncology research.


Medical Education

Columbia University College of Physicians and Surgeons, medical degree


Mount Sinai Medical Center, residency in internal medicine


Harvard Medical School and Beth Israel Hospital, fellowship training in medical oncology and hematology

Awards and honors

Awards and honors

  • Jersey’s Best Magazine Top Doctors: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
  • Jersey’s Best – Top Doctors for Cancer: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023
  • New York Magazine: Top Doctors: 2021, 2022
  • Top Doctors: New York Metro Area (book series): 14th Edition, 15th Edition, 16th Edition, 17th Edition, 18th Edition
  • Top Doctors New York Metro Area (digital guide): 2016, 2017, 2018, 2019, 2020, 2021, 2022

Professional Memberships

American College of Physicians, American Society of Clinical Oncology, American Society of Hematology, Eastern Cooperative Oncology Group, Medical Society of New Jersey, Bergen County Medical Society, Oncology Society of New Jersey.

Hospital Affiliations

Hackensack University Medical Center

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call 844-346-7222. You can also schedule an appointment by calling the RCCA location nearest you.

Regional Cancer Care Associates is one of fewer than 200 medical practices in the country selected to participate in the Oncology Care Model (OCM); a recent Medicare initiative aimed at improving care coordination and access to and quality of care for Medicare beneficiaries undergoing chemotherapy treatment.