Our Team

The team members of the Hemophilia and Thrombosis Treatment Center offer comprehensive patient care, with highly trained physicians who are supported by specialized hemophilia nurses and a physical therapist, social worker, and medical assistant. Meet each member of the team below.

Annette von Drygalski, MD, Pharm D

Annette von Drygalski, MD, Pharm D
Assistant Clinical Professor of Medicine
Director, Hemophilia and Thrombosis Treatment Center

Dr. Von Drygalski received her Doctorates of Medicine and Pharmacy from the Ludwig Maximilians University, Munich, Germany. She completed her Internal Medicine residency at the Medical College of Wisconsin and her Hematology/Oncology fellowship at UC San Diego. Dr. von Drygalski is dedicated to diagnosis and care of patients with hemophilia and other bleeding and thrombotic disorders. Her clinic locations are at the Hemophilia and Thrombosis Treatment Center at Medical Offices South in Hillcrest, and the UC San Diego Moores Cancer Center. Dr. von Drygalski also has a strong interest in bringing state-of–the-art research to the center, and providing the hemophilia and thrombosis community with access to clinical trials and translational science. Dr. von Drygalski was the recipient of an American Society of Hematology Research Training Award for Fellows and will continue basic research in hemostasis and thrombosis at The Scripps Research Institute, La Jolla, in the laboratory of Dr. John Griffin.

UC San Diego HTC is Recruiting for a Physician

The UC San Diego Hemophilia and Thrombosis Treatment Center is actively recruiting for a hematologist experienced in the care of adult patients with hemophilia and other bleeding disorders.

We are a large, federally-funded hemophilia and thrombosis treatment center with a thriving 340B program. The HTC is staffed by an excellent and experienced multi-disciplinary team dedicated to the care of patients with bleeding and thrombotic disorders.

The successful candidate will have an academic appointment within the Division of Hematology/Oncology and be expected to participate in all aspects of academic life at UCSD, including clinical, translational or basic research (depending on the background of the successful candidate), and the education of Hematology/Oncology Fellows, Medicine Residents and medical students. 

The HTC maintains excellent working relationships with hepatology, liver transplant, infectious disease, and other specialties.

For more information on how to apply, click here



Sanford Shattil, MD

Sanford Shattil, MD
Distinguished Professor of Medicine
Division Hematology/Oncology

Dr. Shattil graduated from the University of Illinois College of Medicine and received training in internal medicine and hematology on the Harvard Medical Service and Thorndike Memorial Laboratory of the Boston City Hospital. Previously, he was a Professor of Medicine and Chief of Hematology-Oncology at the University of Pennsylvania and a Professor of Cell Biology at the Scripps Research Institute. Currently, he is a Distinguished Professor of Medicine in Hematology-Oncology at UC San Diego. His research interests are in cell adhesion and signaling mechanisms in platelets, vascular cells and cancer. His clinical interests are in bleeding disorders and thrombosis.

John W Adamson, MD

John W Adamson, MD
Clinical Professor of Medicine
Chief, Section Hematology/Oncology, VA Medical Center

Dr. Adamson graduated from the University of California, Los Angeles, School of Medicine before moving to the University of Washington in Seattle for residency in Internal Medicine and fellowship in Hematology. He has held faculty and research positions at the University of Washington, the New York Blood Center, the BloodCenter of Wisconsin and the Medical College of Wisconsin, before assuming his current position as Clinical Professor of Medicine at UC San Diego in 2007. His major clinical interests are in disorders of iron metabolism, anemias and their management, and platelet production problems.

Shirley R. Wycoco, RN, BSN, OCN

Shirley R. Wycoco, RN, BSN, OCN
Hemophilia Nurse

Shirley graduated from the Philippine Women's University and started her nursing career at UC San Diego Medical Center in 1988. Over the past 25 years Shirley gained extensive experience in nursing through her work in the Medical-Surgical Oncology Unit, with Pharmacy Home Care Infusion, with Triage in Internal Medicine, and for the last many years as a nurse case manager in bone marrow transplantation at UC San Diego Health System and Rady Children’s hospital. Shirley brings tremendous knowledge and passion for the care of very sick patients with chronic conditions, and has completed successfully several important quality improvement projects in nursing for UC San Diego Health System. Shirley has received a number of awards demonstrating her excellence, such as the Exemplary Employee of the Year 2005 or the Medal Of Excellence Hon. Mention 2009. Most recently she received the Nursing Excellence Award in Community Service in her function as the Director of the Board the San Diego--Filipino American Foundation, which supports charity causes, disasters, orphanages and medical missions to the her native country. Shirley is excited to contribute her profound nursing knowledge and impeccable work ethics to the Hemophilia Community, supporting outreach and research programs, facilitating transition of youth with hemophilia to our adult center, thereby providing life-long care for our patients with Hemophilia and Bleeding Disorders.

Sally Holle -Taylor, RN

Sally Holle -Taylor, RN
Administrative Nurse, Ambulatory Services

Sally is an experienced, Masters prepared Registered Nurse who joined UC San Diego Health System in November, 2010. She has a diverse background within nursing administration. Sally accepted the position of Administrative Nurse with Ambulatory Care Services and oversees the administrative operations and staff at the Hemophilia and Thrombosis Treatment Center. Sally's primary focus is to promote operational efficiency, service and clinical excellence, and develop strong partnerships that facilitate administrative, nursing and physician services. With her education and experience, she will assist the Hemophilia and Thrombosis Treatment Center to continuously improve the quality of services provided with the aspiration to exceed our patients’ expectations.

Michael Hurley, RN, BSN, OCN
Hemophilia Home Infusion Nurse

Michael graduated from the University of San Francisco and joined the ranks of UC San Diego Nursing for a brief stint in 2006 and returned for good in 2007. Over the last 15 plus years, Michael has worked in both Pediatric and Adult settings. From his time working in Hematology/Oncology and through both inpatient and outpatient arenas, Michael has been fortunate enough to be part of dynamic care teams in providing outstanding care to both patients and their support systems. Through the different arenas, Michael has sought to help patients via self-empowerment and taking control of their medical care. At home, Michael spends time with his family along with volunteering with youth sports and strives to encourage all participants to focus on their accomplishments and setting appropriate goals.

Alexis Sexton

Alexis Sexton, MPH
Program Coordinator

Alexis is the Center’s Program Coordinator. She received her Master’s in Public Health from San Diego State University. Alexis previously worked in the Division of Infectious Diseases at UC San Diego and helped build the Global Medicine Residency & Research Exchange partnership program between UC San Diego and Universidade Eduardo Mondlane in Maputo, Mozambique. She is incredibly excited to help grow the Center in innovative and energizing ways.

Thomas J. Cramer, BSc, MSc, PhD

Thomas J. Cramer, BSc, MSc, PhD
Hemophilia Study Coordinator

Dr. Cramer earned his Bachelor of Science, Master of Science (with a focus on cardiovascular disease) and PhD degrees in Biomedical Sciences from the Vrije Universiteit in Amsterdam, The Netherlands. His PhD thesis focused on Hemophilia A and the anti-coagulant system involving activated protein C. After graduating, Thomas received his postdoctoral training in hematology and blood coagulation at The Scripps Research Institute in La Jolla. In 2013, he moved from bench research to clinical investigation, accepting his current position as Research Coordinator at the Hemophilia and Thrombosis Treatment Center. Thomas manages several studies pertaining to cardiovascular and joint disease in the aging patient with hemophilia and coordinates the hemophilia biobank. When not working on research efforts at the Center, Thomas enjoys hiking, cooking and surfing.

John Larios

John Larios, PT, MPT
Physical Therapist

John was born in El Centro and grew up in the Imperial Valley. He received a Bachelor’s Degree in athletic training and a Master’s Degree in physical therapy from the California State University, Fresno. John is working on his manual therapy certification from the University of St. Augustine and ultimately wished to pursue a PhD degree in Physical therapy. What John likes best about his profession is that it is challenging, unique and rewarding, especially when working with patients with hemophilia. He just enjoys trying to make a positive change our patients’ lives. John loves spending time traveling with his wife and children, watching and playing sports, collecting sports memorabilia and trying new restaurants.

Leonora  Calsada, LCSW, MPH

Leonora Calsada, LCSW, MPH
Clinical Social Worker

Leonora is a licensed Social Worker and received her Master’s in Social Work and Master’s in Public Health from San Diego State University. Leonora has worked for many years in hospital-based health care settings, helping patients and training new interns. She is dedicated to the provision of quality social services at our center. Leonora is focused on assisting patients with psychosocial adjustment strategies to their chronic health condition, linkage with needed resources and assistance, and the management of barriers to access to care. Leonora speaks Spanish fluently, and is especially cognizant of the importance of cultural awareness, cultural behavior, and cultural sensitivity in working with our patients.

Moniqa Diaz, AAIII

Moniqa Diaz, AAIII
Administrative Assistant

Moniqa is the center's administrative assistant. She comes to us with over 10 years of office administration experience. Moniqa focuses on clinic administrative assistance and insurance navigation. Moniqa was born and raised in Phoenix, Arizona, and moved to San Diego in 1999. When she is not at the center, she enjoys spending time with her three kids.

Zhiqiao Dong
Data Manager

Zhiqiao graduated from the University of California, Los Angeles, with a bachelor of science degree in psychobiology. She is excited to join the Hemophilia and Thrombosis Treatment Center as a new team member. From her time at UCLA, Zhiqiao also has extensive experience in global health, including serving as the chief relations officer for the Fellowship for International Service and Health, a nonprofit organization dedicated to providing services and health education to underserved communities abroad.

Richard Barnes, PhD, MPH

Richard Barnes earned a bachelor of science degree in ecological science at the University of Edinburgh in Scotland, a PhD in zoology at the University of Cambridge in England, and a master's of public health (with concentration in epidemiology) from San Diego State University. He worked for many years on wildlife surveys. Since 2008 he has been involved in the statistical analysis of numerous epidemiological research projects for UC San Diego School of Medicine.