Danielle Seidman, MD

Maimonides Physician


Breast Cancer, Hematology & Medical Oncology



About Me

Dr. Danielle Seidman is a medical oncologist at the Cancer Center at Maimonides Medical Center in Brooklyn, New York. She was born and raised on Long Island. Dr. Seidman completed her undergraduate education at Johns Hopkins University in Baltimore, then received her medical degree from Sidney Kimmel Medical College at Thomas Jefferson University in Philadelphia. She completed her residency training in internal medicine at Mount Sinai Beth Israel, followed by her fellowship in hematology and medical oncology at the Mount Sinai Hospital. Dr. Seidman has research experience in development of clinical trials involving new combination therapy for advanced breast cancer. She works closely with radiologists, surgeons, radiation oncologists, and other subspecialists to provide comprehensive cancer care to patients in Brooklyn.

Areas of Expertise

  • Breast Cancer
  • Genitourinary Cancer Care
  • Hematology & Medical Oncology

Conditions Treated

  • Breast Cancer
  • Prostate Cancer
  • Kidney Cancer
  • Testicular Cancer
  • Bladder Cancer


  • Hormone Therapy
  • Chemotherapy
  • Immunotherapy
  • Targeted Therapy


Medical Degree

Sidney Kimmel Medical College at Thomas Jefferson University


Mount Sinai Beth Israel


Mount Sinai Beth Israel: Internal Medicine


Icahn School of Medicine at Mount Sinai: Hematology and Medical Oncology


Internal medicine


  • Aetna
  • Affinity Health Plan
  • CenterLight
  • Centers Plan
  • Cigna
  • ElderPlan
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • Empire Plan (United Healthcare)
  • Fidelis
  • HealthFirst
  • Hotel Trades
  • Local 1199
  • MagnaCare
  • Medicaid
  • Medicare
  • MetroPlus
  • MultiPlan
  • Oxford
  • RiverSpring Health Plans
  • Tricare
  • United Healthcare
  • VillageCare Max
  • VNS Choice
  • Wellcare
  • WTC Health Program

Choose Your