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Scott Avecilla, MD, PhD


About Dr. Avecilla

Dr. Scott Avecilla is the Chief Clinical Pathologist and Director of the Blood Bank in the HSS Department of Pathology and Laboratory Medicine. Dr. Avecilla comes to HSS from Memorial Sloan Kettering Cancer Center (2014-2021) where he served multiple roles in the Department of Laboratory Medicine, including Section Head for Cell Therapy Laboratory Services. Dr Avecilla also previously served as the Director of Special Coagulation Laboratory at Weill Cornell/NewYork Presbyterian Hospital (2013-2014).

Dr. Avecilla specializes in laboratory medicine test interpretation and consultation with a focus on all aspects of laboratory medicine for patients with musculoskeletal disorders. He has subspecialty board certification in transfusion medicine/blood banking as well as extensive experience in hemostasis testing, both of which are important contributors to safe and successful orthopedic surgeries. Dr. Avecilla partners with his HSS colleagues from multiple disciplines to ensure that the laboratory therapeutic and testing services are optimal for patient care.

As a clinician-educator, he is involved in collaborative translational research to develop better techniques for the care of patients with musculoskeletal diseases by use of regenerative medicine.


Special Expertise

Transfusion medicine cConsultation
Coagulation testing consultation and interpretation
Laboratory testing and interpretation

Patient Stories


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Chief Clinical Pathologist, Hospital for Special Surgery
Director of Transfusion Services for the Blood Bank, Hospital for Special Surgery
Associate Attending Pathologist, Hospital for Special Surgery
Associate Professor of Clinical Pathology and Laboratory Medicine, Weill Cornell Medical College


American Board of Pathology: Clinical Pathology
American Board of Pathology: Blood Banking/Transfusion Medicine


Weill Cornell Medical College, New York, NY, 2007


University of Washington Medical Center, Seattle, WA, Clinical Pathology, 2011


New York Blood Center, New York, NY, Transfusion Medicine and Blood Banking, 2012

State Licensure



Publications by Dr. Avecilla

Selected Books/Chapters

Avecilla ST, Goss CA. CD34+ Enrichment and T-Cell Depletion. In: Schwartz J, Shaz BH, eds. Best Practices in Processing and Storage for Hematopoietic Cell Transplantation. Cham: Springer International Publishing; 2018:51- 62.

Erdman PA, Avecilla ST. Screening Tests in Hemostasis. In: Vasan N, Carlo MI, eds. Pocket Oncology. Second ed: Wolters Kluwer; 2018:228-290.

Avecilla ST, Roshal M, Reyes Gil M, Erdman PA. Chapter 159 - Laboratory Monitoring for Heparins, Fondaparinux, Direct Thrombin Inhibitors, and Oral Anti-Xa Medications. In: Shaz BH, Hillyer CD, Reyes Gil M, eds. Transfusion Medicine and Hemostasis (Third Edition): Elsevier, 2019:933-8.

Avecilla ST. Chapter 31 - Human Platelet Antigens. In: Shaz BH, Hillyer CD, Reyes Gil M, eds. Transfusion Medicine and Hemostasis (Third Edition): Elsevier, 2019:185-9.

Avecilla ST. Chapter 41 - Coagulation Factor Products. In: Shaz BH, Hillyer CD, Reyes Gil M, eds. Transfusion Medicine and Hemostasis (Third Edition): Elsevier, 2019:251-60.

Avecilla ST. Chapter 54 - Transfusion Management of Patients Receiving Antithrombotic Therapy. In: Shaz BH, Hillyer CD, Reyes Gil M, eds. Transfusion Medicine and Hemostasis (Third Edition): Elsevier, 2019:343-9.

Selected Journal Articles

Avecilla ST, Boulad F, Yazdanbakhsh K, Sadelain M, Shi PA. Process and procedural adjustments to improve CD34+ collection efficiency of hematopoietic progenitor cell collections in sickle cell disease. Transfusion. 2021 Jun 23. doi: 10.1111/trf.16551. Epub ahead of print. PMID: 34160085.

Jacob RP, Walsh EM, Maslak PG, Giralt SA, Avecilla ST. A Simplified CD34+ Based Preharvest Prediction tool for HPC(A) Collection. Transfusion. 2021 Mar 11. doi: 10.1111/trf.16356. Online ahead of print. PMID: 33694175

Thoren KL, Avecilla ST, Klimek V, Goss C. A novel method for the laboratory workup of anaphylactic transfusion reactions in haptoglobin-deficient patients. Transfusion. 2020 Apr;60(4):682-687. doi: 10.1111/trf.15657. Epub 2020 Jan 23. PMID: 31975382

Avecilla ST, Goss C, Marionneaux SM, Wright DR, Leiva TD, Tonon J, Smith KM, Maslak P. Method comparison study of peripheral blood CD34+ count performed on an Abbott CELL-DYN Sapphire hematology analyzer versus flow cytometry reference procedure (modified ISHAGE). Adv Cell Gene Ther. 2018 Sep;1(2):e15. doi: 10.1002/acg2.15. Epub 2018 Aug 13. PMID: 30873513

Avecilla ST, Marionneaux SM, Leiva TD, Tonon JA, Chan VT, Moung C, Meagher RC, Maslak P. Comparison of manual hematocrit determinations versus automated methods for hematopoietic progenitor cell apheresis products. Transfusion. 2016 Feb;56(2):528-32. doi: 10.1111/trf.13346. Epub 2015 Sep 23. PMID: 26395285

Avecilla ST, Ferrell C, Chandler WL, Reyes M. Plasma-diluted thrombin time to measure dabigatran concentrations during dabigatran etexilate therapy. American journal of clinical pathology. 2012;137(4):572-4. Epub 2012/03/21. doi: 10.1309/AJCPAU7OQM0SRPZQ. PubMed PMID: 22431533.

Avecilla ST, Hattori K, Heissig B, Tejada R, Liao F, Shido K, Jin DK, Dias S, Zhang F, Hartman TE, Hackett NR, Crystal RG, Witte L, Hicklin DJ, Bohlen P, Eaton D, Lyden D, de Sauvage F, Rafii S. Chemokine-mediated interaction of hematopoietic progenitors with the bone marrow vascular niche is required for thrombopoiesis. Nature Medicine. 2004;10(1):64-71. Epub 2004/01/02. doi: 10.1038/nm973. PubMed PMID: 14702636.

For more publications, please see the PubMed listing.


Industry Relationships

Industry Relationships

One of the goals of HSS is to advance the science of orthopedic surgery, rheumatology, and related disciplines for the benefit of patients. Physicians at HSS may collaborate with outside companies for education, research and medical advances. HSS supports this collaboration in order to foster medical breakthroughs; however HSS also believes that these collaborations must be disclosed.

As part of the disclosure process, this website lists physician collaborations with outside companies. The disclosures are provided by information provided by the physician and other sources and are updated regularly. Further information may be available on individual company websites.

As of September 21, 2021, Dr. Avecilla reported no relationships with healthcare industry.

By disclosing the collaborations of HSS physicians with industry on this website, HSS and its physicians make this information available to their patients and the public, thus creating a transparent environment for those who are interested in this information. Further, the HSS Conflicts of Interest Policy does not permit physicians to collect royalties on products developed by him/her that are used on patients at HSS.