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John Edgar Tis, M.D.

Physician Advisor
Assistant Professor of Orthopaedic Surgery


Appointment Phone


Main Location

Johns Hopkins Outpatient Center

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Physician Advisor
  • Assistant Professor of Orthopaedic Surgery

Centers & Institutes



Johns Hopkins Outpatient Center

Appointment Phone: 443-997-2663

601 N. Caroline Street
5th Floor
Baltimore, MD 21287 map
Phone: 410-955-3870
Fax: 410-955-1784

Johns Hopkins Medicine - Howard County

Appointment Phone: 443-997-2663

10700 Charter Drive
Charter Professional Building, Suite 140
Columbia, MD 21044 map
Phone: 443-546-1500
Fax: 410-955-1784


Ankle Arthroscopy, Arthroscopic Surgery, Cerebral Palsy, Elbow Arthroscopy, Hip Dislocations, Hip Dysplasia, Hip Impingement, Hip Labral Tears, Knee ACL reconstruction, Knee Joint Arthroscopy, Knee Surgery, Labral Tears of the Hip, Orthopaedic Surgery, Pediatric ACL Reconstruction, Pediatric and Adolescent Sports Injuies, Pediatric Orthopaedic Surgery , Pediatric Orthopaedics, Pelvic Osteotomies, Shoulder Arthroscopy, Slipped Capital Femoral Epiphysis (SCFE), Sports Injuries, Sports Medicine

Research Interests

Biomechanics; Sports medicine


Dr. John E. Tis is an assistant professor of orthopaedic surgery and pediatrics at the Johns Hopkins University School of Medicine.

A specialist in pediatric orthopaedics and sports medicine, Dr. Tis is currently one of the few fellowship-trained pediatric orthopaedic surgeons who is also board certified by the American Board of Orthopaedic Surgery in Sports Medicine. In addition to ACL tears and other sports injuries, he also enjoys treating a wide variety of pediatric deformitites including hip dysplasia.

He is an expert in performing arthroscopic surgical procedures on the ankles, hips, shoulders and knees, including ACL reconstructions. He treats injuries that include ACL tears, hip and shoulder dislocations (dysplasia) and labral tears.

Dr. Tis also treats orthopaedic issues related to conditions including scoliosis, cerebral palsy, osteochondritis dessicans, slipped capital femoral epiphysis, Legg-Calve-Perthes disease and spondylolisthesis.

Dr. Tis earned his medical degree from the Georgetown University School of Medicine. He completed an orthopaedic surgery residency at Walter Reed Army Medical Center, a research fellowship at Johns Hopkins and a pediatric orthopaedics surgery fellowship at UCSD Rady Children''s Hospital.

Prior to joining the Johns Hopkins faculty, Dr. Tis served for four years as the Director of Pediatric Orthopaedics at Walter Reed Army Medical Center.

While in the military, he developed an orthopaedic sports medicine practice and became an expert in arthroscopically treating orthopaedic injuries and disorders. He also treated complex pediatric deformities.

Experienced in treating high-energy war wounds and limb defects, Dr. Tis served as the Chief of Orthopaedics at Ibn Sina Hospital (“Baghdad ER”) during Operation Iraqi Freedom. In 2011, he returned to Afghanistan and served for six months.

He is board certified in orthopaedic surgery and sports medicine. more

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Dr. John E. Tis

    Additional Information

  • Education +


    • Georgetown University School of Medicine / MD (1994)


    • Walter Reed National Military Medical Center / Orthopaedic Surgery (2002)


    • UCSD Rady Children's Hospital / Pediatric Orthopaedic Surgery (2003)


    • American Board of Orthopaedic Surgery / Orthopaedic Sports Medicine (2008, 2016)
    • American Board of Orthopaedic Surgery / Orthopedic Surgery (2005, 2016)
  • Research & Publications +

    Selected Publications View all on PubMed

    1. Bell JC, Wolf EJ, Schnall BL, Tis JE, Tis LL, Potter BK. "Transfemoral amputations: the effect of residual limb length and orientation on gait analysis outcome measures." J Bone Joint Surg Am. 2013 Mar 6;95(5):408-14. doi: 10.2106/JBJS.K.01446.
    2. Tis JE, Karlin LI, Akbarnia BA, Blakemore LC, Thompson GH, McCarthy RE, Tello CA, Mendelow MJ, Southern EP; Growing Spine Committee of the Scoliosis Research Society. "Early onset scoliosis: modern treatment and results." J Pediatr Orthop. 2012 Oct-Nov;32(7):647-57. Review.
    3. Leu D, Sargent MC, Ain MC, Leet AI, Tis JE, Sponseller PD. "Spica casting for pediatric femoral fractures: a prospective, randomized controlled study of single-leg versus double-leg spica casts." J Bone Joint Surg Am. 2012 Jul 18;94(14):1259-64. doi: 10.2106/JBJS.K.00966.
    4. Tis JE, Edmonds EW, Bastrom T, Chambers HG. "Short-term results of arthroscopic treatment of osteochondritis dissecans in skeletally immature patients." J Pediatr Orthop. 2012 Apr-May;32(3):226-31. doi: 10.1097/BPO.0b013e31824afeb8.
    5. Srikumaran U, Tan EW, Belkoff SM, Marsland D, Ain MC, Leet AI, Sponseller PD, Tis JE. "Enhanced biomechanical stiffness with large pins in the operative treatment of pediatric supracondylar humerus fractures." J Pediatr Orthop. 2012 Mar;32(2):201-5. doi: 10.1097/BPO.0b013e31824536c8.
  • Academic Affiliations & Courses +
  • Activities & Honors +


    • Medals of Commendation, U.S. Army, 1996
    • Norman T. Kirk Award for Best Resident/Fellow Paper, Society of Military Orthopaedic Surgeons, 1999
    • Medals of Achievement, U.S. Army, 2001
    • Medals of Achievement, U.S. Army, 2002
    • Medals of Commendation, U.S. Army, 2002
    • Medals of Commendation, U.S. Army, 2004
    • Fellow, American Academy of Orthopaedic Surgeons, 2005
    • America’s Top Orthopedists, Consumers' Research Council of America, 2007
    • Medals of Commendation, U.S. Army, 2007
    • Medal for Meritorious Service, U.S. Army, 2008
    • Medals of Commendation, U.S. Army, 2008


    • American Academy of Orthopaedic Surgeons
    • Arthroscopy Association of North America
    • Pediatric Orthopaedic Society of North America
    • Scoliosis Research Society
  • Videos & Media +
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