Doctors

Steven Alter, MD

Dr. Alter is a graduate at Cornell University and Boston University School of Medicine. He completed his orthopedic surgery training at the State University of New York, Downstate, and his upper extremity and hand surgery fellowship at New England Medical Center and New England Baptist Hospital.

Dr. Alter is board-certified by the American Board of Orthopedic Surgery and possesses the certificate of added qualifications in surgery of the Hand. He is a member of the American society for Surgery of the Hand. Dr. Alter has privileges at Emerson Hospital, Lowell General Hospital and Saints Medical Center.

Mark Lapp, MD

Dr. Lapp was born and raised in New York. He attended college at The Johns Hopkins University and graduated with honors from The State University of New York School of Medicine at Stony Brook. He completed his residency in orthopaedic surgery at Tufts University School of Medicine followed by a fellowship in spinal surgery at Washington University in St. Louis. Dr. Lapp served as chief of adult spine surgery at Tufts-New England Medical Center prior to moving to the Merrimack Valley to create a center of excellence for spine. He has been in practice in the Valley since 2001.

Dr. Lapp’s practice covers the breadth of orthopaedic spine surgery. Areas of expertise include complex spinal reconstructive procedures, revision surgery, cervical, thoracic, and lumbar spine surgery, and minimally invasive spine procedures. He has a broad background in the care of non-operative and surgical spinal disorders in both adults and children.

He is Board Certified by the American Board of Orthopaedic Surgery and is an Assistant Professor of Orthopaedic Surgery at Tufts University. He maintains an active research interest and has presented papers at the Scoliosis Research Society, the North American Spine Society, and the American Academy of Orthopaedic Surgeons.

Dr. Lapp lives in the Merrimack Valley with his wife and two children.

W. Howard Wu, MD

Dr. Wu is board certified by the American Board of Orthopaedic Surgery and specializes in Sports Medicine, trauma and minimally invasive surgeries of the shoulder and knee.

Dr. Wu is the team physician of the Rivier College Athletic Program.

Dr. Wu earned his Bachelor’s degree from Cornell Univeristy, and his medical degree from Columbia University College of Physicians and Surgeons. He completed his residency at Columbia Presbyterian/New York Orthopaedic Hospital in New York City, followed by a fellowship at New England Medical Center specializing in Sports Medicine and Arthroscopy.

Dr. Wu is the Attending Surgeon at Lowell General Hospital, Lowell, Saints Medical Center, as well as the past Chief of Department of Orthopaedic Surgery at Lowell General Hospital