​Meet Our Staff & Faculty at the Orthopaedic Surgery Residency Program

John D. Lubahn, MD
Program Director

• Medical School: Case Western Reserve University School of Medicine
• Residency: Orthopaedic Surgery - Rochester General Hospital
• Fellowship: Hand Surgery - Humana Hospital University of Louisville
• Certifications: Hand Surgery, Orthopaedic Surgery - American Board of Orthopaedic Surgery
• Memberships: AMA - American Medical Association, American Academy of Orthopaedic Surgeons, Pennsylvania Medical Society, Erie County Medical Society, American Orthopaedic Association, American Society for Reconstructive Microsurgery Eastern Orthopaedic Association, American Society for Surgery of the Hand, Orthopaedic Research Society
• Areas of Special Interest: Hand, microsurgery and reconstructive orthopaedics
• Awards: Recently named a US News and World Report Top Doc. Dr. Lubahn is one of 219 hand surgeons throughout the nation to be named to this prestigious list. US News and World Report Top Docs are selected based on a peer nomination process.

Mary Beth Cermak, MD

• Medical School: Temple University School of Medicine
• Residency: Orthopaedic Surgery - West Virginia Univ Hospitals
• Fellowship: Upper Extremity/Hand Surgery - University of Pennsylvania
• Certifications: Hand Surgery, Orthopaedic Surgery - American Board of Orthopaedic Surgery

Gary J. Cortina, MD

• Medical School: Jefferson Medical College
• Residency: Orthopaedic Surgery - UPMC Hamot
• Fellowship: Spine and Hand Surgery - Allegheny General Hospital
• Certifications: Orthopaedics - American Board of Orthopaedic Surgery
• Memberships: American Academy of Orthopaedic Surgeons, Erie County Medical Society, Pennsylvania Medical Association, Pennsylvania Orthopaedic Society, Eastern Orthopaedic Association
• Areas of Special Interest: Shoulder and knee orthopaedic surgery; hip and knee replacement surgery.

James A. DeLullo, MD

• Medical School: Wright State University
• Residency: Orthopaedic Surgery - UPMC Hamot
• Fellowship: Sports Medicine/Trauma - Allegheny General Hospital
• Certifications: Orthopaedics - American Board of Orthopaedic Surgery

John M. Hood, MD

• Medical School: Hahnemann University School of Medicine
• Residency: Orthopaedic Surgery - UPMC Hamot
• Fellowship: Hand Surgery - Hospital of the University of Pennsylvania
• Certifications: Hand Surgery, Orthopaedic Surgery - American Board of Orthopaedic Surgery

Mark A. Krahe, DO

• Medical School: Philadelphia College of Osteopathic Medicine
• Internship: Traditional Osteopathic Internship – South Pointe Hospital
• Residency: Orthopaedic Surgery – South Pointe Hospital
• Fellowship: Foot and Ankle Surgery – Orthopaedic Foot & Ankle Center

Jeffrey A. Nechleba, MD

• Medical School: State University of New York at Buffalo School of Medicine
• Residency: Orthopaedic Surgery - UPMC Hamot
• Certifications: American Board of Orthopaedic Surgery
• Memberships: AMA - American Medical Association, American Academy of Orthopaedic Surgeons, American Orthopaedic Association, Pennsylvania Orthopaedic Society
• Areas of Special Interest: Orthopaedic surgery, joint replacement, sports medicine, fracture care

Carl Y. Seon, MD

• Medical School: State University of New York at Buffalo School of Medicine
• Residency: Orthopaedic Surgery - UPMC Hamot
• Fellowship: Shoulder and Elbow Surgery - Thomas Jefferson University Hospital
• Areas of Special Interest: Shoulder surgery

Nick Stefanovski, MD

• Medical School: Temple University School of Medicine
• Residency: Orthopaedic Surgery - UPMC Hamot
• Certifications: American Board of Orthopaedic Surgery

D. Patrick Williams, DO

• Medical School: Chicago College of Osteopathic Medicine
• Residency: Orthopaedic Surgery - Grandview Hospital and Medical Center
• Fellowship: Hand Surgery - Cleveland Clinic Foundation
• Certifications: Hand Surgery, Orthopaedic Surgery - American Osteopathic Board of Orthopaedic Surgery

Contact Us

For more information regarding the Orthopaedic Residency Program at UPMC Hamot, please contact Jane Horetsky, GME senior department manager, at 814-877-6253 or horetskyj@upmc.edu.