Meet your Hemostasis and Thrombosis Center team
All of the pediatric hematologists in the Division of Hematology at CHOP care for children with bleeding and clotting disorders and belong to the Hemostasis and Thrombosis Center team. We utilize a shared practice model, which means that although you will have a primary hematologist, you may be seen by another hematology provider from time to time or during acute care visits.
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Medical Director

Leslie J. Raffini, MD
Assistant Medical Director

Char Witmer, MD
Hematologists

Bhavya S. Doshi, MD

Lindsey A. George, MD

Michele P. Lambert, MD, MSTR

Benjamin J. Samelson-Jones

Hilary Whitworth, MD, MSCE
Business Manager

Mary Louise Mattia
Clinical Program Director/Nurse Coordinator

Regina B. Butler, RN
Hemostasis Program Nurses
Kaitlin Bates, BSN, RN

Susan Gallagher, RN

MaryLou MacDermott, MSN, CRNP
Casey Maher-Caramanica, RN, BSN, CPN
Thrombosis Program Nurses
Kaitlin Bates, BSN, RN

Jennifer Colt, RN, BSN

MaryLou MacDermott, MSN, CRNP

Jacquelyn Sager, MSN, CRNP
Physical Therapist

Kristin Caputo, PT, DPT
Hemostasis and Thrombosis Social Workers
Christina M. Adenuga, MSW
Sloane White, MSW
Mid Atlantic Regional Coordinator
