Skip to content
BookOrtho
Find care
Subspecialties
Knee Surgeons
Hip Surgeons
Shoulder Surgeons
Spine Surgeons
Hand Surgeons
Foot & Ankle Surgeons
Joint Replacement Surgeons
Sports Medicine Surgeons
Pediatric Orthopedic Surgeons
Orthopedic Trauma Surgeons
Wrist Surgeons
Popular procedures
Knee Replacement
Partial Knee Replacement
Robotic Knee Replacement
ACL Reconstruction
Meniscus Repair
Knee Arthroscopy
Cartilage Restoration
Hip Replacement
Browse all orthopedic surgeons
Find a doctor
Guides
For surgeons
Log in
Subspecialties
Knee Surgeons
Hip Surgeons
Shoulder Surgeons
Spine Surgeons
Hand Surgeons
Foot & Ankle Surgeons
Joint Replacement Surgeons
Sports Medicine Surgeons
Pediatric Orthopedic Surgeons
Orthopedic Trauma Surgeons
Wrist Surgeons
More
Find a doctor
Guides
For surgeons
Log in
All orthopedic surgeons
Book with Nicholas K. Callahan
Your name
Email
Phone (optional)
Anything we should know? (optional)
Request appointment
💬
Book with our assistant
