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Ivan P. Maillard, MD, PHD

Ivan P. Maillard, MD, PHD Physician

Vice Chief for Research Professor of Medicine

Dr. Maillard is employed by Penn Medicine.

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  1. He or she is not employed by Penn Medicine.
  2. He or she does not see patients.
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Clinical Specialties


  • Hematology
  • Medical Oncology

Board Certification:

  • Hematology, 2016
  • Internal Medicine, 2015

Description of Clinical Expertise

Hematological malignancies

Insurance Accepted

  • Aetna US Healthcare
  • Amerihealth Caritas
  • Amerihealth Caritas Medicare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: University of Lausanne
Residency: Lausanne University Hospital
Fellowship: Hospital of the University of Pennsylvania


American Association of Immunologists, National American Society for Blood and Marrow Transplantation, National American Society of Clinical Oncology, National American Society of Hematology, National Center for Scientific Review, National Institute of Health, National Central Society for Clinical and Translational Research, National International Society for Stem Cell Research, International Leukemia & Lymphoma Society, National Society of Hematologic Oncology, National Swiss MD-PhD Association, International Swiss Medical Association, International

Hospital Affiliation

Dr. Maillard is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.


Description of Research Expertise:

My laboratory investigates the regulation of normal and malignant hematopoiesis, bone marrow transplantation and T cell alloimmunity. A central focus of our studies is the role of Notch signaling in T cell development, differentiation and function. Using mouse models of bone marrow transplantation, we discovered essential functions for Notch receptors and ligands in graft-versus-host disease with a high fundamental and translational impact. We are also interested to understand the role of Trithorax family epigenetic regulators in hematopoiesis and leukemia.

Academic Contact Info

Biomedical Research Building
421 Curie Blvd
4th Floor Rm 451

Philadelphia, PA 19104
Phone: (215) 546-2929