Michael Baumgaertner, MD

Professor of Orthopaedics and Rehabilitation; Director, Orthopaedic Trauma Service

Departments & Organizations

Orthopaedics & Rehabilitation: Fracture Problems | Ortho Clinical Faculty | Trauma & Fracture Care

Yale Medicine


Michael R. Baumgaertner, M.D., is fracture surgeon who is Professor of Orthopaedic Surgery & Rehabilitation. He serves as Chief of the Orthopaedic Trauma Service at Yale-New Haven Hospital, where he has practiced for more than 25 years, treating patients with severe fractures, fracture complications, and worn out joints.

Following a childhood in Minnesota, Dr. Baumgaertner graduated from Stanford University with a degree in Art History. He attended the University of California (San Diego) Medical School as a Regent’s Scholar where he earned his M.D. He then did his orthopaedic surgery residency at the University of California (San Francisco), following that he completed a one-year fellowship in plastic and reconstructive surgery at the University of Massachusetts Medical Center in Worcester, Massachusetts. He joined the Faculty of the Yale School of Medicine in 1988.

Dr. Baumgaertner’s landmark 1995 publication on hip fracture fixation performed at Yale initiated his international recognition. The measurement he described at that time has been validated repeatedly and remains the universal standard. He has authored numerous original articles and chapters in orthopaedic textbooks. He has lectured and taught residents in training and practicing surgeons on five continents optimal surgical fracture care.

He has served as Chairperson of Education for both the Orthopaedic Trauma Association and AONorth America, was elected President of AONA, and currently is the Chairperson of the Board of Directors. of AO North America, a non-profit organization of more than 1000 surgeons that is dedicated to the optimal care of patients with fractures and/or deformity. He is a Trustee of the AO Foundation, an international group of more than 15000 surgeons

His academic career notwithstanding, Dr. Baumgaertner is a surgeon dedicated to the recovery of his injured patients: Providing technically expert surgical repair, as well as the education and counseling necessary to heal not only the patient’s fracture, but also the lifestyle.

Education & Training

MD University of California, San Diego (1982)
AB Stanford University, Art History (1978)
guest AOfellow AO Center Kantonspital,
Fellow University of Massachusetts Medical Center
Resident University of California at San Francisco
Resident University of California, San Francisco
Board Certification AB of Orthopaedic Surgery, Orthopaedic Surgery (1990, recertified: 1997)

Professional Service

  • GLOBAL AO FOUNDATION dedicated to optimal care of musculoskeletal trauma (1989 - 2017) I have served this global organization for 25+ years with increasing responsibilities, and will continue to do do. Initially as a teacher and subsequently course organizer & developer and now focused on developing faculty skills. I serve as a Trustee of the foundations as well as Chair of the Educational Advisory Board, among other duties.

  • AO North America (1988 - 2017) Joining as a participant then faculty then Education Committee member then Chair, ultimately becoming President of AONA from 2011-15 I now serve as Chairman of the Board of Directors of AONA, a 501(c)3 and 501(c)6 based in PA, it is the regional representation of the AOFoundation in US and provides education and career opportunities for all medical professionals involved in the care of musculoskeletal injury.


  • AOSurgery Reference (AOSR)Executive Editors Annual Meeting Reykjavík, Iceland (2017 - 2017)

    Review/ assess budget new and recurring projects within AOSR

  • Jo Miller Visiting Professor McGill University Montreal, Canada (2017 - 2017)

    Keynote speaker and honored guest for Graduation weekend for Orthopaedic residents at McGill University

  • Korea 43rd Annual meeting of Korean Fracture Society Gyeongju-si, South Korea (2017 - 2017)

    Keynote lectures 1) Managing Femoral Trochanteric Fractures, 2) Mechanical causes of Nonunion

  • AOTNA Basic Principles of Fracture Management Course “Unique learning resources of the AO Foundation” Dallas, United States (2017 - 2017)

    Lecture “Unique learning resources of the AO Foundation” and coaching for the faculty

  • AOFoundation/AOTrauma Masters Course- Complications International faculty Mumbai, India (2016 - 2016)

    1) “Violation of AO principles;” 2) “Osteoporotic fractures around the knee 3) Chairperson, Faculty coaching program

  • PRESENTATION: Pro-C: Proficiency-Based Progression in Surgical Training using Simulation: Barcelona, Spain (2016 - 2016)

    Development of Metrics for Fracture Care, Validity coauthors:Pierre Guy, Matthew Graves
    Kevin Inkpen, Michael Baumgaertner, Anthony G Gallagher, David Hak

  • 42nd Annual Japanese Society of Fracture Repair annual meeting, AOT Seminar Tokyo, Japan (2016)

    Invited Keynote lecture “Management of Trochanteric Fractures”

  • XXII Congresso Brasileiro de Trauma Ortopedico Maceió, Brazil (2016 - 2016)

    1)Tips and technical tricks for trochanteric fractures; 2) Prevention and treatment of tibia shaft malunion; 3)Salvage of mismanaged proximal femur fractures.

  • AO Lower Extremity master's Course São Paulo, Brazil (2015 - 2015)

    Invited International guest to teach at regional psycho-motor fracture management course

  • AOTrauma Advanced Fracture Care Management Course Wuhan, China (2012 - 2012)

    International invited faculty to teach advance fracture management principles

  • AO Master's Fracture Managagement course Agra, India (2008 - 2008)

    International invited faculty to teach advance fracture management principles

  • Visiting Consultant Surgeon Middlemore Hospital Auckland, New Zealand (2002 - 2003)

    Sabattical work in Auckland, NZ

  • AONA Algower Traveling Fellowship Bern, Switzerland; Edinburgh, United Kingdom; Los Angeles, United States (1997 - 1998)

    Competitive award to work in Trauma Centers of excellence for up to 3 months

  • AO Fellow & Illizarov fellow Chur, Switzerland; Lecco, Italy (1989 - 1989)

    learned advanced fracture care techniques

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Contact Info

Michael Baumgaertner, MD
Patient Care Locations
Yale Orthopaedics/Sports Medicine1445 Boston Post Road
Guilford, CT 06437
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Yale Orthopaedics/Adult ReconstructionYale Physicians Building
800 Howard Avenue, Ste 1st Floor

New Haven, CT 06519
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Office Location
Yale Physicians Building
800 Howard Avenue, Ste Suite 133

New Haven, CT 06519
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Mailing Address
Orthopaedics & RehabilitationP.O. Box 208071
New Haven, CT 06520-8071