Our Orthopaedic Surgeons

Dr. Lee Schmidt
Lee M. Schmidt
Director, Joint Replacement Center

Chief, Division of Orthopaedics

Dr. Lee Schmidt helped to create the joint replacement center at GBMC and has been its director since it opened in 2004. He has practiced at GBMC since completing his joint replacement fellowship in 1990. Treating both arthritic knees and hips, he has surgical expertise ranging from arthroscopic surgery to total joint reconstruction. Areas of special interest include partial and total knee replacement, hip replacement surgery and minimally invasive techniques.

Dr. Schmidt is an auto enthusiast and enjoys travel, golf, skiing and spending time with his family.


Dr. Allan Lanzo
D. Allan Lanzo, MD
Director of Sports Medicine


Dr. Allan Lanzo completed his fellowship in sports medicine at the renowned Hughston Clinic in 1990. He has spent the last 16 years in private practice in Baltimore. Dr. Lanzo specializes in surgery of the knee and shoulder, and has extensive experience in advanced techniques in knee arthroscopy and ACL reconstruction. In addition, he has performed more Oxford Unicompartmental knee replacements than any other orthopedic surgeon at GBMC. Also specializing in shoulder injuries, Dr. Lanzo performs rotator cuff and shoulder stabilization procedures arthroscopically.

At home Dr. Lanzo enjoys spending time with his wife and 3 daughters. Dr. Lanzo's sporting interests include tennis, golf and fitness workouts.

Dr. Stewart Koehler
Stewart Koehler, MD

Dr. Stewart Koehler is board certified in general orthopaedics, but dedicates much of his work to adult reconstruction. Majoring in English, Dr. Koehler obtained his bachelor's degree from Georgetown University. He then went on to study at the University of Maryland School of Medicine where he earned his doctorate, followed by an orthopaedic residency at Union Memorial Hospital in Baltimore. Recently, Dr. Koehler trained with other surgeons nationwide in using the Oxford Unicompartmental Knee.

Dr. Howard Bathon
G. Howard Bathon, MD

Dr. Howard Bathon is our foot and ankle surgeon and handles the more difficult trauma and fracture cases. A general orthopaedic surgeon since 1983, he spent seven of those years at the world renowned Maryland Shock Trauma Center. He has done extra training in foot and ankle surgery, and is a member of both the Orthopaedic Trauma Association and the American Orthopaedic Foot and Ankle Society. He has practiced at GBMC since 1997, helping to cover the Emergency Department. His areas of interest are the lower extremity in general, especially the foot and ankle; diabetic foot reconstruction, and all manner of fractures.

Dr. Bathon lives in Towson and has two grown children. In his free time, he likes to ski, hike and sing in his church choir. He is a licensed pilot, and enjoys all things about airplanes.

Dr. Todd Melegari
Todd M. Melegari, MD

Dr. Melegari earned his medical degree at MCP Hahnemann School of Medicine in Philadelphia, Pennsylvania. He completed his residency at the University of Medicine and Dentistry of New Jersey in Newark, New Jersey and was a fellow in Sports Medicine and Reconstruction with the Department of Orthopaedic Surgery at MedStar Union Memorial Hospital in Baltimore, MD. Dr. Melegari is board-certified in Orthopaedic Surgery and was previously employed with Easton Orthopaedic Group at Coordinated Health in Pennsylvania.

Dr. James C. Johnston
James C. Johnston, MD

Dr. Johnston, has joined Orthopedic Specialists of Maryland at GBMC as a board-certified orthopedic surgeon specializing in hip and knee replacements and geriatric hip fracture prevention. A graduate of the University of Maryland School of Medicine, Dr. Johnston completed his internship, residency and chief residency in orthopedic surgery at Johns Hopkins Hospital. He continued his training by completing a fellowship in hip and knee replacements at the Mayo Clinic in Rochester, Minnesota. He is an active Fellow of the American Association of Hip and Knee Surgeons. Prior to his arrival at GBMC, Dr. Johnston was employed at MaineGeneral Medical Center, where he performed hundreds of primary and revision joint replacements annually and helped expand their Joint Replacement Program. While there he also worked with primary care providers to initiate a Fracture Liaison Program that helped to ensure elderly patients with fractures were assessed and treated for osteoporosis in order to prevent fractures in the future.
Greater Baltimore Medical Center | 6701 North Charles Street | Baltimore, MD 21204 | (443) 849-2000 | TTY (800) 735-2258
© 2017  GBMC. This website is for informational purposes only and not intended as medical advice or a substitute for a consultation with a professional healthcare provider.