Spiro B. Antoniades, MD, is a board-certified orthopaedic surgeon, fellowship-trained in spine surgery. Dr. Antoniades is a member of the American Academy of Orthopaedic Surgeons and a Phi Beta Kappa graduate of Johns Hopkins University. His research interests are clinical orthopaedic surgery and spinal disorders.

Dr. Antoniades’ philosophy follows a disciplined approach, with focus on:

  • Taking time to listen and understand the patient’s reason for seeking care, in their own words.
  • Examining the patient carefully and thoroughly.
  • Developing a personalized treatment plan, favoring initial conservative management, whenever possible.
  • Delivering caring and thorough follow-up.
  • Maintaining an open and direct line of communication with patients and their families.

Dr. Antoniades has practiced spinal surgery in the Baltimore metropolitan area since 1999 and sees patients at MedStar Health Bel Air Medical Campus.


  • Residency: Orthopaedic Surgery MedStar Union Memorial Hospital
  • Internship: General Surgery MedStar Union Memorial Hospital
  • Medical School and Undergraduate School Johns Hopkins University

Conditions Treated


MedStar Union Memorial Hospital Spine Center

  • Phone: (410) 261-8762
  • Fax: (443) 444-4775

Bel Air

  • Phone: 410-877-8088
  • Fax: (410) 877-8083


Meet Spine Surgeon Spiro Antoniades, MD

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