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Sports Medicine Specialist Dr. Matthew Pifer Joins Kaliber’s Surgeon Advisory Board

San Francisco, CA. March 23, 2023 – Kaliber Labs has announced that Dr. Matthew Pifer, a board-certified orthopedic surgeon based in Santa Barbara, California, has joined the company’s Surgeon Advisory Board.


“Dr. Pifer’s wealth of training and experience in arthroscopic surgery will help us hone Kaliber’s AI applications toward optimizing surgical outcomes for patients,” said Kaliber CEO Ray Rahman. “We are very excited to have him with us. His contribution will be a great asset as we build towards this vision.”


A fellowship-trained orthopedic surgeon specializing in sports medicine and arthroscopic techniques, Dr. Pifer empowers his practice with a focus on identifying and utilizing the best available surgical tools and technologies. His approach employs not only cutting edge arthroscopic techniques, but also the use of biologics, such as stem cell therapies, to treat injuries and promote healing. Dr. Pifer has researched and published extensively in the field, including scientific papers, book chapters, and articles focused on advanced arthroscopic surgical techniques and the orthopedic rehabilitation of athletes. He serves as an Institutional Review Board (IRB) Member for the Sport and Spine Rehab Clinical Research Foundation and is an active member of the American Academy of Orthopaedic Surgeons, Arthroscopy Association of North America, and American Orthopaedic Society for Sports Medicine.


“I am passionate about exploring how innovative technologies can contribute to the field of orthopedic surgery and help deliver the best results for my patients,” Dr. Pifer stated. “Kaliber is ambitiously using AI to generate solutions to improve surgical understanding and guidance. It’s an endeavor that I’m excited to support.”


Dr. Pifer joins an impressive roster of leading arthroscopic surgeons who make up Kaliber’s Surgeon Advisory Board. These surgeons include:


Anthony Romeo, MD

Executive Vice President, the Musculoskeletal Institute, Dupage Medical Group • Chief Medical Editor, Orthopaedics Today • Past President, American Shoulder and Elbow Society


Brian Cole, MD

Past president of AANA • Vice-Chairman and Managing Partner, Midwest Orthopedics at Rush • Team physician for the Chicago Bulls, Chicago White Sox, Chicago Fire, Chicago Dogs, and DePaul University


Brian Feeley, MD

Chief of Sports Medicine and Shoulder Surgery, UCSF


Patrick Denard, MD

Preeminent shoulder specialist • Clinical instructor, Oregon Health & Science University


Nicholas Sgaglione, MD

Professor & Chair, Northwell Health Dept. of Orthopedic Surgery • Sr VP of Orthopedics & Exec. Dir. of Northwell Health Orthopaedic Institute • Past President AANA • Past Chair, Arthroscopy Journal Board of Trustees


Mark Getelman, MD

President of AANA • Co-director of Sports Medicine Fellowship Training Program, SCOI • Faculty member, SCOI Sports Medicine Division


Shariff K. Bishai, DO, MS

Past President AOAO, Sports Section • Past President Detroit Academy of Orthopaedic Surgrey • Specialist in complex shoulder and knee reconstruction


William Ciccone, MD Sports Medicine & Joint Replacement specialist • Designated Master in Shoulder Arthroscopy, AANA • Past Team Physician for the Colorado Rockies AAA Sky Sox


Joseph Burns, MD

Shoulder specialist • Head of Orthopedics at Wellstar Health Systems • Master Instructor, Arthroscopy, AANA


Scott Sigman, MD Sports Medicine, Knee & Shoulder Specialist • Opioid Sparing Surgery • Medical Devices • Fellow, World Society of Sports & Exercise Medicine • Fellow, Royal College of Surgeons Ireland


Richard L. Angelo, MD

Past President AANA • AANA Education Foundation Board of Directors • Institute for Surgical Excellence Advisory Board


Nathan Mall, MD CIME

Specialist in regenerative and biologic medicine


Gary Poehling, MD

Editor in Chief Emeritus, Arthroscopy: The Journal of Arthroscopic and Related Surgery • Past President, ISAKOS • Professor, Wake Forest Medical Orthopedic Surgery


Ira Guttentag, MD, FACS

Medical Director and Head Team Physician for the Tampa Bay Lightning • Board of Directors, Florida Medical Clinic


Ryan Pitts, MD

President, Orthopedic Associates, LLC - St, Louis, MO


Lyndon Gross, MD

Team Orthopedist, St. Louis Cardinals • Sports Medicine, Shoulder, Knee, and Elbow specialist • Advanced joint reconstruction and cartilage restoration specialist


David King, MD

Leonard Marmor Foundation Award • Associate Master Instructor, AANA Hip Arthroscopy Course


Victor Khabie, MD, FAAOS, FACS

Chief of Department of Surgical Services, Chief of Orthopedics & Sports Medicine, Co-Director of Orthopedic and Spine Institute, Northern Westchester Hospital • Director of Sports Medicine Section, Somers Orthopedic and Sports Medicine Group


Matthew Stiebel, MD

Shoulder and Knee specialist • Fellow of the Royal College of Surgeons of Canada • Associate Clinical Professor, FAU Medical School • Associate Master Instructor, AANA


Brian Waterman, MD

Sports medicine and cartilage restoration specialist • American Orthopaedic Association North American Traveling Fellow • AANA Advanced Arthroscopy Traveling Fellow


Robert Meislin, MD

Fellowship trained Orthopedic Sports Medicine • Physician, Sports Medicine Center at NYU Langone Orthopedic Center • Clinical Professor of Orthopedic Surgery, New York University • Editorial board member, Arthroscopy


Robert Gallo, MD, M.H.A.

Orthopaedic Sports Medicine Surgeon, Penn State Hershey • Professor, Penn State University College of Medicine • Associate Program Director, Penn State Orthopaedic Residency Program


Dr. Tony Gallagher, PhD

Director of Research, ASSERT Centre – University College Cork (UCC)


John Cory, MD

OrthoArizona The Foot And Ankle Center • American Sports Medical Institute Foot and Ankle Fellow


Stanley Rogers, MD

Chief of General Surgery, UCSF • Director of Video Endoscopic Surgery, Zuckerberg San Francisco General Hospital



About Kaliber Labs

Kaliber builds AI-powered solutions to meet the needs of patients, surgeons, and administrators in arthroscopic surgery. Our intelligent software is designed to generate insights from surgical procedures—cut to close—and channel them into surgeon-centric tools to support quality, access, and cost of care.


To learn more about Kaliber, please visit www.kaliber.ai.

Inquiries can be directed to info@kaliberlabs.com.


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