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Daniel Osei, MD

Daniel Osei, MD, MSc
Assistant Professor, Orthopaedic Surgery

VideoPhysician Profile Video

Clinical Specialty
Hand and Wrist Surgery
Microvascular Upper and Lower Extremity Reconstruction

Clinical Interests
Dr. Osei’s clinical interests include orthopaedics, hand surgery, wrist surgery, elbow surgery and microsurgery. Evaluation and treatment of traumatic and sports related injuries, degenerative conditions, and nerve compression syndromes of the hand and upper extremity in adults and children. Microvascular upper and lower extremity reconstruction.

Research Interests
Dr. Osei’s primary research interests include clinical outcomes and epidemiological study of upper extremity disorders, with a particular interest in ulnar and median compressive neuropathy (cubital tunnel syndrome and carpal tunnel syndrome). 

Dr. Osei received his undergraduate degree from Princeton University, where he played soccer on the men’s soccer team.  He subsequently enrolled at the University of Pennsylvania School of Medicine, where he was awarded the William G. Munns Memorial Prize as the top medical student going into Orthopedic Surgery. He completed his surgical internship at the New York Presbyterian-Weill Cornell Medical Center, and then went on to do a residency at the Hospital for Special Surgery in New York. Dr. Osei did his fellowship training in orthopaedic hand and upper extremity surgery at Washington University in St. Louis before joining the faculty, where he has practiced hand surgery since 2012. Dr. Osei has gone abroad to seek additional training, spending time as a visiting hand and upper extremity fellow at the Lindenhofspital in Bern, Switzerland as well as at the world-renowned microsurgery unit at Chang Gung Memorial Hospital in Linkou, Taiwan.

Dr. Osei is committed to medical student, resident, and fellow education. He has teaching positions with 1st and 3rd year medical students, and runs the 3rd year medical student Hand and Upper Extremity examination class.  In recognition of his efforts, he has been awarded for excellence in education by the orthopaedic resident trainees.

Dr. Osei is also committed to advancing the science behind the care of patients with disorders of the hand and upper extremity. He completed his Masters of Science in Clinical Investigation in 2014 and is focused on producing high quality clinical outcomes and epidemiological research. He has authored numerous articles and his research is currently funded by a number of research grants, including those from the National Institutes of Health (NIH) and the US Department of Defense.

As an Assistant Professor at the Washington University School of Medicine, Dr. Osei has given numerous research and clinical practice related talks nationally and internationally. He is a reviewer for numerous orthopeadic surgery journals including the Journal of Bone and Joint Surgery and the Journal of Hand Surgery. In addition, he serves on numerous national orthopedic society committees.

Dr. Osei remains dedicated to his clinical practice. He treats a wide variety of hand and upper extremity disorders, including those of the highest complexity. In conjunction with his partner Dr. Martin Boyer, he has established an Orthopedic Reconstructive Flap Service, providing quality upper and lower extremity soft tissue coverage and reconstruction to orthopedic patients with complex wound or soft tissue deficiencies. In recognition of his excellence in patient care, Dr. Osei has been named one of the Washington University School of Medicine “Top 40” Physicians in 2014 and again in 2015.


  • ASSH Richard H. Gelberman Scholar Travel Award, 2015
  • Washington University Physicians, Top 5% Highest Patient Satisfaction, 2013-2014, 2014-2015
  • ASSH Young Leaders Program, 2014
  • Attending Physician Excellence in Education Award, Department of Orthopedic Surgery (highest overall teaching rating in the Department, voted on by residents), 2014
  • J. Robert Gladden Orthopaedic Society PGY 5 Scholarship Recipient, 2011
  • AAOS Annual Meeting Scientific Exhibit, Honorable Mention for award of Excellence, Peripheral Nerve Injuries in Sports-related Surgery: Presentation, Evaluation and Management, February 2011
  • AOA Emerging Leaders Program, Elected November 2010
  • Distinguished Housestaff Award for All-Around Excellence, New York Hospital/Weill Cornell Medical Center, 2010-2011
  • AOA Resident Leadership Forum, June 2010, San Diego CA
  • William G. Munns Memorial Prize, University of Pennsylvania School of Medicine (Award given to top Medical Student pursing Orthopaedic Surgery), 2006
  • Meigs Merit Scholarship, University of Pennsylvania School of Medicine 2002-2006

Medical Degree
University of Pennsylvania, Philadelphia, PA

Orthopedic Surgery, Hospital for Special Surgery, New York, NY

Hand & Upper Extremity, Washington University in St. Louis/Barnes-Jewish Hospital, St. Louis, MO
Reconstructive Microsurgery, Visiting Fellow at Chang Gung Memorial Hospital, Linkou, Taiwan
Hand and Upper Extremity, Lindenhofspital, Department of Orthopaedic Surgery, Bern, Switzerland

Graduate Degree
Master of Science in Clinical Investigation, Washington University, St. Louis, MO

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American Academy of Orthopaedic Surgery

American Society for Surgery of the Hand


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