- Guthrie Robert Packer Hospital
- Guthrie Towanda Memorial Hospital
- Guthrie Troy Community Hospital
- Arthroscopy - knee, wrist, ankle, elbow
- Fractures, malunion and nonunions
- Hand Surgery
- Total hip and knee replacements
- Walter Reed Army Medical Center, Washington D.C.
- Catholic Medical Center of Brooklyn and Queens, Jamaica, N.Y.
- American Board of Orthopaedic Surgery
- Jefferson Medical College, Philadelphia, Pa.
- Allentown Affiliated Hospitals, Allentown, Pa.