Transplant and Oncology Infectious Diseases (TOID) Fellowship


With nearly 35,000* organs transplanted each year in the United States, there is a need for specialty training of infectious diseases physicians focused on the needs of transplant patients.

Founded in 2008, the TOID Fellowship seeks to expand institutional expertise and train the next generation of providers in clinical and academic activities focused on infectious complications in transplant (solid organ and stem cell) and oncology patients. Since its development, Johns Hopkins has been recognized as a primary training site for TOID, and has hosted numerous visiting clinicians, clinical fellows, medical students, and undergraduates for electives in the subspecialty, from both US and international hospitals.

The American Society of Transplantation recognizes the Transplant and Oncology Infectious Diseases (TOID) fellowship at Johns Hopkins University as an ACGME-equivalent program.  Applicants should be current or past fellows in good standing in an ACGME-accredited Infectious Diseases fellowship program.For more information, contact Darin Ostrander at (410) 614-6702,

*US Department of Health & Human Services

Fellowship Program Fast Facts

Launched in 2008, the Johns Hopkins Transplant and Oncology Infectious Disease Fellowship has been recognized as a comprehensive, cutting-edge transplant program encompassing a board range of solid organ and Hematopoietic stem cell transplantation (HSCT) transplants.

  • Primary training site for TOID
  • Includes composite tissue allotransplantation, haploidentical HSCT, and HLA/ABO-incompatible kidney transplantation
  • Training through the Tucker TOID Clinical Service
  • Fellows participate in pre-transplant evaluation and post-transplant continuity clinics
  • Faculty utilize (and have co-authored) the current AST- and IDSA-approved curriculum for Transplant ID training.
  • Rotations of six months or longer duration
  • Opportunities for translational and clinical research for motivated fellows who would like to stay in program for a longer duration (up to 2 years).
  • ACGME-equivalent program
  • Hosts visiting clinicians, clinical fellows, medical students, and undergraduates for electives in the subspecialty, from both United States and international hospitals


Contact Us

Robin Avery, MD
Professor of Medicine
Director, Transplant and Oncology Infectious Diseases
Johns Hopkins University
600 N. Wolf Street
Sheikh Zayed Tower Suite 434
Baltimore, MD 21287


Darin Ostrander, PhD
TOID Program Manager, Director of Operations
1830 E. Monument St., Room 459
Baltimore, MD 21287

Phone: 410-614-6702


Charitable Giving

The Pamela Cresson Tucker Fund promotes the scholarship of women students, fellows, residents, and early career faculty engaged in research on the infectious complications of the immunocompromised host, particularly transplant medicine and oncology.

Pamela Cresson Tucker Fund 

Printable Charitable Giving Form