• -->

Board of Directors

The Anticoagulation Forum Board of Directors represent a multidisciplinary group of anticoagulation care providers including physicians, pharmacists and nurses. These members serve as active participants in the AC Forum’s mission of educational programming for our membership. As experts in the field, our board members are an integral part of our conference faculty, webinar panels, guidance development, and program committees. We are grateful for the generosity of their service and the opportunity to have such an extraordinary group of leaders to oversee the activities of the Anticoagulation Forum.

Allison Burnett, PharmD, PhC, CACP<br>President
Allison Burnett, PharmD, PhC, CACP
President

Allison received her pharmacy doctorate from the University of New Mexico College of Pharmacy in 2003, then completed a general pharmacy practice residency at Boston Medical Center in 2004. She now serves as lead pharmacist of the Inpatient Antithrombosis Stewardship program at the University of New Mexico Health Sciences Center and as an associate adjunct clinical professor at the UNM College of Pharmacy. ...more...

Arthur L. Allen, PharmD, CACP
Arthur L. Allen, PharmD, CACP

Dr. Arthur Allen is the Anticoagulation Program Manager at VA Salt Lake City Health Care System in Salt Lake City, UT. He has more than 20 years of experience in the fields of anticoagulation and thrombosis and has managed thrombosis programs and served as a subject matter expert locally, regionally, and nationally for more than 15 years. ...more...

Jack E. Ansell, MD, MACP<br>Founder, Past President
Jack E. Ansell, MD, MACP
Founder, Past President

Jack Ansell is former Chairman of Medicine, Lenox Hill Hospital and Professor of Medicine at Hofstra-Northwell School of Medicine. He is a clinical investigator with a principal focus on the clinical problems of thrombosis, antithrombotic therapy, and the application of new modes of delivering and monitoring anticoagulants. ...more...

Geoffrey Barnes, MD, MSc
Geoffrey Barnes, MD, MSc

Geoff Barnes is an Associate Professor of Internal Medicine at the University of Michigan where he specializes in cardiovascular and vascular medicine. He has completed internal medicine, cardiovascular medicine, and vascular medicine training at the University of Michigan where he also served as the chief medical resident. ...more...

Marilyn S. Blumenstein, MSN, CRNP
Marilyn S. Blumenstein, MSN, CRNP

Marilyn Blumenstein works at The Children's Hospital of Philadelphia as a pediatric nurse practitioner in the Hemostasis and Thrombosis Center (HTC). For more than 16 years, her work-focus has been to establish and grow the thrombosis and anticoagulation program at CHOP working closely with the HTC medical director, Leslie Raffini, and in collaboration with our clinical pharmacist for anticoagulation. Prior to her work at CHOP, Marilyn spent 10 years working for the American Red Cross, Penn-Jersey Region in Clinical Services ...more...

William E. Dager, PharmD, BCPS
William E. Dager, PharmD, BCPS

William E. Dager, Pharm.D., BCPS (AQ-Cardiology), is a cardiovascular pharmacist specialist in at UC Davis Medical Center and is the PGY-2 cardiology program director. Dr. Dager holds two academic positions and four fellowship honors and is a board certified pharmacotherapy specialist with added qualifications in cardiology. ...more...

Steven Deitelzweig, MD, MMM, FACC, SFHM, FACP, RVT
Steven Deitelzweig, MD, MMM, FACC, SFHM, FACP, RVT

Steven B. Deitelzweig serves as the System Chairman for Hospital Medicine and Medical Director of Regional Business Development of Ochsner Health System in New Orleans, Louisiana. He collaborates on clinical solutions to over 20 partner hospitals within the Ochsner system. ...more...

Stacy Ellsworth, RN, MSN, CCRC
Stacy Ellsworth, RN, MSN, CCRC

Stacy Ellsworth is a clinical research coordinator for the Henry Ford Health System in Detroit, MI, with a specialty in anticoagulation research and DVT prevention and treatment. She received her nursing Diploma from Henry Ford Hospital in 1994 and went on to get her Master’s degree in nursing from the University of Phoenix in 2001. ...more...

Andrew Geller, MD, CDR USPHS
Andrew Geller, MD, CDR USPHS

Andrew Geller serves as Chief Medical Officer of the Medication Safety Program at the U.S. Centers for Disease Control and Prevention (CDC). His research interests include medication safety, chronic disease management, and the intersection of medicine and public health practice. ...more...

Scott Kaatz, DO, MSc, FACP, SFHM<br>Immediate Past President
Scott Kaatz, DO, MSc, FACP, SFHM
Immediate Past President

Scott Kaatz is Clinical Professor of Medicine at Michigan State University College of Human Medicine and Wayne State University School of Medicine and a Hospitalist at Henry Ford Hospital in Detroit where he serves as the Medical Director for Professional Development and Research in the Division of Hospital Medicine. He attended medical school at Michigan State University and completed his residency in internal medicine at Henry Ford Hospital. Later in his career, he earned his master’s degree in Evidence-Based Health Care from Oxford University. ...more...

Bishoy Ragheb, PharmD, BCACP, CACP
Bishoy Ragheb, PharmD, BCACP, CACP

Dr. Ragheb received his Doctor of Pharmacy degree from Florida A&M University in 2008. He completed his pharmacy practice residency with a focus on anticoagulation and primary care at the Tallahassee Outpatient Veterans Affairs Clinic and continued to serve veterans there as a clinical pharmacy specialist until 2014. ...more...

Anita Rajasekhar, MD, MS
Anita Rajasekhar, MD, MS

Dr. Rajasekhar is an associate professor at the University of Florida (UF) in Gainesville, Florida. She is a clinician and clinical investigator with a focus on non-malignant hematology, specifically thrombosis and hemostasis. She completed her medical degree, residency in internal medicine, and fellowship in hematology/oncology at the University of Florida. She holds a Masters degree in Clinical Investigation from the University of Florida. ...more...

Deborah Siegal, MD, MSc, FRCPC
Deborah Siegal, MD, MSc, FRCPC

Deborah Siegal is an Associate Professor in the Department of Medicine within the Division of Hematology at the University of Ottawa. Dr. Siegal graduated from Queen’s University School of Medicine in 2009 and completed Internal Medicine and Hematology training at McMaster University. She holds Master of Science degrees in Pharmacology (University of Toronto) and Health Research Methodology (McMaster University). ...more...

Andrea Van Beek, RN, DNP, AGPCNP-BC
Andrea Van Beek, RN, DNP, AGPCNP-BC

Andrea Van Beek, RN, DNP, AGPCNP-BC works at Visalia Medical Clinic/Kaweah Health Medical Group in Visalia, California where she is a Nurse Practitioner in the Anticoagulation Clinic. She started the Anticoagulation Clinic in 2017 and in 5 and a half years it has grown to serve over 750 patients (and counting.) Andrea is passionate about patient care. Her clinical interests include patient education, warfarin management, home and INR testing, and perioperative management of warfarin and direct oral anticoagulants. ...more...

Sara Vazquez, PharmD, BCPS, CACP
Sara Vazquez, PharmD, BCPS, CACP

Sara Vazquez is a clinical pharmacist and specializes in thrombosis management at the University of Utah Health Thrombosis Service in Salt Lake City. She earned her pharmacy degree from the University of Tennessee College of Pharmacy and completed a Pharmacy Practice Residency with Ambulatory Care Emphasis at the Regional Medical Center in Memphis, TN. ...more...