Elements of the Hand Surgery Fellowship Program

Core Faculty

  • Ghazi M. Rayan, M.D. Program Director
    Hand/Orthopedic Surgery
  • Richard A. Ruffin, M.D. Attending
    Hand/Orthopaedic Surgery
  • Thomas Lehman, M.D. Attending
    Hand/Orthopedic Surgery
  • Margaret Porembski, M.D, Attending
    Hand/Orthopedic Surgery
  • Yuri Lansinger, M.D., Attending
    Hand/Orthopedic Surgery      

Adjunct Faculty

  • Mumawar Ali M.D.
    Hand/Orthopaedic Surgery
  • Greg Halko, M.D.
    Hand/Orthopedic Surgery
  • Sylvia Gray, M.D.
    Hand/Plastic Surgery

Sponsoring Institution

  • INTEGRIS Health 

Surgical Centers

  • INTEGRIS Baptist Surgery Center - Dr. Rayan and Dr. Porembski
  • Orthopaedic Associates Ambulatory Surgery Center - Dr. Ruffin
  • Oklahoma University Health Science Center - Dr. Lehman and Dr. Lansinger
  • VA Medical Center - Dr. Ali

Private Offices and Clinics

  • Orthopaedic Associates, Inc. - Dr. Ruffin
  • Children's Hand Clinic - Dr. Lansinger
  • University Hand Clinic - Dr. Lehman
  • Mercy Hand Surgery Clinic - Dr. Gray


  • Six rotations with six supporting hand faculty members.
  • Six months at INTEGRIS Hand and Microsurgery Clinic
  • Six months at outside rotations.
  • Miscellaneous brief rotations include hand rehabilitation, electro diagnosis, prosthetics and orthotics

Graduate Medical Education Committee

  • Chelsey Gilbertson, D.O., DIO

Program Administration Staff

  • Shannon Thompson, System Director, Medical Education
  • Miranda Dutt, Coordinator, Hand Surgery Fellowship

Contact Information

Ghazi M. Rayan, M.D.
3300 NW Expressway 100-4396
Oklahoma City, OK 73112
Phone: 405-951-2272
Fax: 405-979-8415