In 2022, the Orthopaedic Surgery team at Massachusetts General Hospital welcomed six new physicians with an impressive and diverse roster of specializations. Mass General is pleased to offer patients the full spectrum of orthopedic care as its world-renowned doctors contribute their unique research and practice to the most comprehensive orthopedic surgery department in New England.

Meet Our New Specialists

Lorena Bejarano-Pineda, MD

Lorena Bejarano-Pineda, MD

Foot & Ankle Orthopaedic Surgeon
Phone: 617-724-9338  |  Locations: Boston, Waltham & Wellesley

Clinical Interests:

  • Achilles tendon injuries
  • Ankle arthritis & instability
  • Minimally invasive surgery in foot & ankle
  • Sports injuries to the foot & ankle
  • Reconstructive surgery for flat foot deformity
Gian Corrado, MD

Gian Corrado, MD

Director of Emergency Sports Medicine
Phone: 617-726-7500  |  Location: Boston

Clinical Interests:

  • Sports injuries
  • Cardiac health/screening for athletes
Ryan Lohre, MD

Ryan Lohre, MD

Shoulder Orthopaedic Surgeon
Phone: 617-724-7300  |  Locations: Boston & Waltham

Clinical Interests:

  • Complex shoulder & elbow reconstruction
  • Rotator cuff reconstruction (tendon transfers)
  • Scapula disorders & winging
  • Shoulder nerve injuries
  • Treatment of failed shoulder surgery

Augustus "Gus" D. Mazzocca, MD

Medical Director, Mass General Brigham Sports Medicine
Phone: 781-487-6181  |  Locations: Boston, Foxboro & Waltham

Clinical Interests:

  • Shoulder dislocation & instability
  • Shoulder arthritis
  • Rotator cuff repair & revision
  • Primary & revision shoulder surgery
  • Elbow biceps and triceps injury
Zabrina Shabin, MD

Zabrina Shabin, MD

Pediatric Orthopaedic Surgeon
Phone: 617-726-8523  |  Locations: Boston & Wellesley

Clinical Interests:

  • Pediatric fractures
  • Pediatric scoliosis
  • Pediatric hip disease
  • Pediatric foot and ankle care
  • Pediatric sports medicine
Derek Stenquist, MD

Derek Stenquist, MD

Orthopaedic Trauma Surgeon
Phone: 617-726-9111  |  Location: Boston

Clinical Interests:

  • Fracture care
  • Hip fractures & arthroplasty
  • Pelvic ring injuries
  • Acetabular fractures
  • Nonunion and malunion of fractures