The Lewis County Orthopedic team, Dr. Steven J. Kaplan, Dr. Greg Keller, Dr. Carolyn M. Hettrich (Coming September 2026), Dr. Shane K. Woolf, and Physician Assistant Evan Leibelsperger diagnose and treat ailments affecting muscles, bones and joints, treating sports injuries, degenerative diseases, tumors, infections, fractures, and birth defects. There’s no need to travel out of the area for your orthopedic care. All providers are welcoming new patients.
Lewis County Orthopedics is located at Lewis County General Hospital, Medical Arts Building, Suite 120, 7785 North State Street, Lowville, New York 13367.
Phone: 315-376-4505
Fax: 315-376-4259
Steven J. Kaplan, M.D.
Dr. Kaplan is Board Certified by the American Board of Orthopaedic Surgery and graduated with honors from the University of Buffalo, SUNY School of Medicine and Biomedical Sciences in 1978. He completed his surgical residency at Buffalo General Hospital, Buffalo, New York and an Orthopedic Surgery residency at the University of Louisville Hospital in Louisville, Kentucky.
Along with Dr. Kaplan's well rounded orthopedic training, he has over 35 years of experience and specializes in hip, knee and shoulder replacement.
He is a member of the American Academy of Orthopaedic Surgeons, State Medical Society of Wisconsin, Milwaukee County Medical Society and Wisconsin Orthopaedic Society. He has served as past Chief of the Medical Staff, Secretary of the Medical Staff and Section Head of Orthopedic Surgery. Prior to joining Lewis County Orthopedics, Dr. Kaplan was affiliated with Aurora Health Care Orthopaedics in Milwaukee, Wisconsin.
Carolyn M. Hettrich, M.D., MPH (Coming Septemebr 2026)
Dr. Hettrich is Board Certified by the American Board of Orthopaedic Surgeons and her medical degree from the University of Washington School of Medicine in Seattle, Washington. Her residency training in Orthopedic Surgery was completed at the #1-ranked Hospital for Special Surgery in New York City, which included a one-year research fellowship focused on tendon-to-bone healing. She also earned a Master of Public Health (MPH) from Columbia University during that time. At the completion of her residency, she won the prestigious Lewis Clark Wagner Award for Excellence in Research from HSS, as well as the Cabaud Memorial Research Award from AOSSM for the best basic science study. After residency, Dr. Hettrich did a fellowship in sports medicine and shoulder surgery at Vanderbilt University. During the fellowship, Dr. Hettrich was an assistant team physician for Vanderbilt University, the Nashville Sounds, and the Nashville Predators.
She is an Active Member of the American Shoulder and Elbow Surgeons. She is the only member of the Neer Circle (part of ASES) in the North Country and greater Syracuse area. The esteemed group has only 183 members in all of the US - and most are at major academic centers. She is a member and holds leadership roles in AOSSM, AAOS, and ASES, and currently runs the AAOS Shoulder Elbow Registry.
Dr. Hettrich has a special interest in caring for athletes of all ages, particularly those involved in overhead sports. She was a former team physician for USA Volleyball, the University of Iowa, and the University of Kentucky and served as the Chief of the Shoulder Service at Harvard Brigham and Women’s Hospital. She has also authored/edited three textbooks, published over 120 original scientific publications, and runs the world’s largest shoulder research group, MOON Shoulder.
Dr. Hettrich is the highest-volume shoulder replacement surgeon in the area, doing custom shoulder replacements. She treats the majority of shoulder, elbow, and knee conditions and uses the most innovative arthroscopic and minimally invasive techniques.
Greg S. Keller, M.D., FABOS
Greg Keller, M.D. is Board Certified by the American Board of Orthopaedic Surgery. He completed his undergraduate degree at Bucknell University in Lewisburg, PA, and earned his medical degree from Pennsylvania State University College of Medicine in Hershey, PA. He completed his orthopedic surgery residency at Albany Medical Center in Albany, NY. Dr. Keller is a member of the American Academy of Orthopedic Surgeons and a Fellow of the American Board of Orthopedic Surgery. He completed two fellowships: one in sports medicine at the Institute for Bone and Joint Disorders and the other in shoulder surgery at Maricopa MediGreg Keller, M.D., FABOScal Center in Phoenix, AZ.
During his tenure, Dr. Keller provided medical coverage and support as assistant team physician for The Phoenix Mustangs Hockey Team, Phoenix, AZ; Arizona Rattlers Arena Football League, Glendale, AZ; Union College Division 1 Hockey Team, Schenectady, NY; and the Empire State Games, Albany and Rochester, NY, as well as numerous high schools and other sports organizations.
Dr. Keller has over 26 years of experience and specializes in shoulder and elbow surgery, sports medicine, arthroscopy, knee reconstruction, and upper- and lower-extremity trauma.
Shane K. Woolf, M.D.
Shane K. Woolf, M.D. is Board Certified by the American Board of Orthopaedic Surgery. He completed his undergraduate degree at Princeton University and earned his medical degree from Pennsylvania State University College of Medicine, Hersey, PA. He completed a residency in orthopedic surgery, including two years as a research fellow, at the Medical University of South Carolina. Then, he completed a sports medicine fellowship at the Taos Orthopaedic Institute in Taos, New Mexico.
Dr. Woolf is a member of the American Academy of Orthopaedic Surgeons, American Orthopaedic Society for Sports Medicine, Arthroscopy Association of North America, and American Orthopaedic Association. He currently serves as the Chief of Sports Medicine and Director for the Arthroscopy Bioskills Lab for the Department of Orthopaedics, Medical University of South Carolina.
Dr. Woolf has over 20 years of orthopedic experience and specializes in general orthopedics and sports medicine injuries to athletes of all levels and ages, with interests in shoulder, knee, and hip problems.
Evan Leibelsperger, RPA-C
Physician Assistant Evan Leibelsperger is a Board Certified graduate from approved NCCPA program, a Board Certified Athletic Trainer, BCLS certified, and a member of the American Academy of Physician Assistants. He obtained his Bachelor of Science in Athletic Training from East Stroudsburg University, East Stroudsburg, PA in 2007 and his Master Degree in Physician Assistant studies in 2010 from DeSales University, Center Valley, PA.
He evaluates orthopedic conditions, treats musculoskeletal injuries and deformities, is skillful in suturing, wound care, splint/casting, injections, office procedures, imaging interpretations, fracture and dislocation reductions, and has surgical experience in lower /upper extremity surgical cases.