Transfusion Medicine Fellowship


John Daniels D.O. (Director) Leslie Greebon M.D.
Kelley Hitchman, MS, Ph.D Brad Brimhall, M.D., M.P.H.

The UT Health San Antonio offers a one-year Transfusion Medicine Fellowship that is fully accredited by the ACGME. The fellowship accepts one trainee per academic year with a structured curriculum and dedicated teaching staff. During training, the fellow receives training in immunohematology, histocompatibility, paternity testing, donor center supervision, therapeutic apheresis, transfusion therapy, hemostasis, flow cytometry, and molecular pathology. The training is based upon participation of daily activities, consultations, various elective experiences as well as didactic teaching. The primary teaching site is a tertiary care teaching hospital, University Hospital System (UHS), which is a 716-bed teaching hospital that provides transfusion services to diverse adult and pediatric patient populations:

  • Trauma (Level I trauma center)
  • Solid organ transplant (liver, lung, kidney, pancreas)
  • General surgery and Specialty surgery services
  • Hematology & oncology
  • High risk obstetrical program
  • High risk neonatal program (NICU Level I-IV)
  • General acute care and intensive care units

At UHS, annually, over 18,000 red cell units, 8,000 plasma units and 4,000 platelet doses are transfused. In addition, Transfusion medicine oversees the therapeutic apheresis program, where over 400 therapeutic apheresis procedures and red cell exchanges are performed annually for various diseases. The hospital based donor services collects whole blood and apheresis-based allogeneic blood products from over 5,000 donors annually. A fellowship-affiliated hospital located across the street from the primary site (South Texas Veterans Health Care System) is a national referral center for bone marrow transplantation. Exposure to the operations of a larger scale donor center, donor infectious disease testing and allogeneic tissue is provided at the subsidiaries of BioBridge Global, which is located 5 miles from the primary site. Paternity testing experience is obtained through the DNA reference laboratory located in San Antonio.

Requirements: ACGME accredited residency completion with Board eligibility or certification in clinical pathology, internal medicine, pediatrics or other related fields.

Number of positions: One

Recruitment Status:
Academic year 2022-2023: Filled
Academic year 2023-2024: Filled

Facilities: University Hospital, South Texas Blood and Tissue Center, DNA Reference Laboratory, Inc.

Stipends: Commensurate with level of training

View current benefits

Information on Living in San Antonio

Current Transfusion Medicine Fellow

Yi Yuan Zhou, M.D.

Residency: University Hospitals Cleveland Medical Center – Case Western Reserve University
Graduate School: (M.Sc neuroscience) University of Ottawa, Ottawa, Ontario Canada. Medical School: Trinity School of Medicine, St Vincent and the Grenadines,
Undergraduate School:  Texas State University, 2011
Hometown:Ottawa, Ontario, Canada

1.  “Why Pathology”     Pathology is one of the few specialties in medicine that has something for nearly everyone. For every clinical specialty, there is a corresponding subspecialty in addition to many more topics. There are subspecialties that have more emphasis on problem solving; ones that are more research oriented; and ones that are more clinically based.  No matter what the preference people can find their niche somewhere in pathology.
2.  Why did you choose UT Health San Antonio?   UT Health San Antonio’s clinical informatics (CI) fellowship program is one of the few programs in the country that is run by the department of pathology and allows the option to do a second fellowship concurrently.  I feel that while CI’s being involved with more of the big picture of healthcare, a more directly patient-oriented specialty can help ground it in realms of patient care and provide firsthand experiences and observations to help direct improvement projects. To this end, I feel transfusion medicine is a great partner with CI as there are many opportunities to apply informatics to help improve operations such as policy on component usage, tracking of inventory, and blood bank management. In addition there is great camaraderie among the residents and fellows in the program, and the faculty are very supportive and makes an effort to continuously improve the program.
3. What do you like about living in San Antonio?     What do you like about living in San Antonio? I have only been in San Antonio for a short time, so it’s still too early to form a definitive opinion, but I’ve heard there is a really great food scene that I’m eager to explore once I have settled down a little.  Since I’m more acclimated to a cooler climate I was a little worried about the heat, but it’s been raining for half the time I’ve been here, so loving the rain!


Send inquiries to:

Leslie Greebon, M.D.
Director of Transfusion Medicine
Department of Pathology
UT Health San Antonio
7703 Floyd Curl Drive
San Antonio, TX 78229-3900


Maria Gomez
Fellowship Program Coordinator
Department of Pathology and Laboratory Medicine
UT Health San Antonio
7703 Floyd Curl Drive MC 7750
San Antonio, TX 78229
Voice:  210-567-4010
Fax:  210-567-4637