• Hand and Upper Extremity


  • Chappaqua
    480​ Bedford Rd.
    Chappaqua, NY 10514
  • White Plains
    1230 Mamaroneck Ave.
    Suite 100
    White Plains, NY 10605

The Founder of NY Hand Associates, Ari L. Mayerfield, MD, is a microsurgeon specializing in all conditions affecting the hand, wrist and peripheral nerves of the upper extremity (arm, elbow and shoulder). Dr. Mayerfield is now the Director of Hand Surgery at Northern Westchester Hospital.

His professional focuses include:

  • Arthritis
  • Carpal tunnel syndrome
  • Dupuytren’s contracture
  • Fracture care
  • Hand tumors
  • Minimally invasive treatments and surgery
  • Tendon and nerve injuries
  • Trigger finger

In addition to his position within the practice, he also serves as an assistant professor of surgery at New York Medical College.

Dr. Mayerfield completed his fellowship at the Christine M. Kleinert Institute for Hand and Microsurgery, where he performed approximately 700 hand and upper extremity cases. He completed his General Surgery residency at the University of Illinois at Chicago where he was awarded a Best Teacher distinction while serving as Chief Resident.

Along with his extensive training, Dr. Mayerfield completed his medical degree at the Sackler School of Medicine at Tel Aviv University and a post-baccalaureate pre-health program at Harvard University. He received his bachelor’s degree in policy analysis and management from Cornell University.

Dr. Mayerfield’s professional affiliations and activities include:

  • Subspecialty Certificate in Surgery of the Hand
  • Board certified, American Board of Surgery
  • Member, Medical Society of the State of New York (MSSNY)
  • Member, New York Surgical Society (NYSS)
  • Member, American Association for Hand Surgery (AAHS)

Dr. Mayerfield first developed an interest in hand surgery as a child when he sustained a traumatic injury that required emergency surgery. With this personal experience as a background, Dr. Mayerfield realized the importance of compassion and empathy in helping patients achieve their goals in the face of adversity. Later, as he progressed through training at Cornell, Sackler and the University of Illinois, that interest flourished into a passion for all things related to surgery of the hand.

While hand surgery may sound like a very subspecialized field, Dr. Mayerfield embraces an all-inclusive approach to the betterment of patients by utilizing techniques from various surgical disciplines, including:

  • Microsurgery
  • Orthopedic surgery
  • Plastic surgery
  • Trauma surgery
  • Vascular surgery
  • Neurosurgery

As part of our complete commitment to patients, Dr. Mayerfield provides compassionate care using the most minimally invasive treatment options available with one goal in mind: to help get people back to using their hands!