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J. Grant Thomson, MD, FACS, MSc

Physical Medicine & Rehabilitation, Pediatric Surgery, Plastic & Reconstructive Surgery, Surgical Oncology, Microvascular Hand Surgery
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Patient type treated
Child, Adult
Accepting new patients
Referral required
From patients or physicians


James Grant Thomson, MD, director of Yale Medicine Hand & Microsurgery, is a plastic surgeon who specializes in repairing the arms, hands and wrists for adults and children. He also performs surgeries for people whose bodies have been changed by cancer treatment.

Dr. Thomson is skilled in microsurgery—delicate operations performed under magnification using small, specialized instruments.  But he says one of the most important advances in hand surgery is the treatment of carpal tunnel syndrome using endoscopic surgery. This surgery involves making a small incision or two in the skin of the wrist, inserting a thin tube with a tiny camera and instruments at the tip, and using the tool to cut the ligament that’s causing the symptoms. “We can perform a short operation, and their symptoms go away immediately. People can get back to using their hands,” Dr. Thomson says.

“There’s a lot of artistry to what plastic surgeons do,” says Dr. Thomson, who is a professor of plastic surgery at Yale School of Medicine. In recent years, he points out, science has been providing more evidence-based approaches. “So we are also innovators and problem solvers,” he says. Through his research, Dr. Thomson has been improving techniques in microsurgery and tendon repair, among other areas.

“Our patients are always challenging us to come up with the best solutions,” he says. “Our medical residents and medical students are challenging us to be on the cutting edge in everything we do. That’s what makes it exciting to be here.”

A physics major in college, Dr. Thomson chose to go into medicine after deciding it was the best way to combine his passion for science with his interest in helping people. He is the founder of a non-profit program called Hand Help, and he has been leading teams of medical professionals on volunteer surgical expeditions to Latin America since 1998. His teams have made a difference in the lives of more than 800 people in developing countries. 


  • Professor of Surgery (Plastic)
  • Director, Yale Hand & Microsurgery Program

Education & Training

  • Fellow
    Washington University/Barnes Hospital, St. Louis, MO (1991)
  • Resident
    McGill University/Montreal General Hospital, Canada (1990)
  • Resident
    Montreal General Hospital, Canada (1988)
  • MSc
    Mc Gill University, Experimental Surgery (1988)
  • Research Fellow
    Royal Victoria Hospital, Montreal, Canada (1985)
  • MD
    McGill University (1983)

Languages Spoken

  • English
  • Français (French)

Additional Information

  • Yale Plastic and Reconstructive Surgery
    Yale Physicians Building
    800 Howard Avenue, Ste 4th Floor
    New Haven, CT, 06519
  • Yale Plastic and Reconstructive Surgery
    Trumbull Care Center
    5520 Park Avenue, Fl Level 1
    Trumbull, CT, 06611
  • Yale Plastic and Reconstructive Surgery
    1445 Boston Post Road
    Guilford, CT, 06437