Portrait of Alekos Theologis
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Alekos Theologis, MD

Spine Surgery
Orthopedic Spine Parnassus
866-817-7463
Portrait of Alekos Theologis
Portrait of Alekos Theologis
ucsf logo

Alekos Theologis, MD

Spine Surgery
Orthopedic Spine Parnassus
866-817-7463

On this page

About me

Dr. Alekos Theologis is an orthopedic surgeon who specializes in caring for adults and children with a wide range of spinal disorders. These conditions include adult scoliosis; tumors; cervical myelopathy, or compression of the spinal cord in the neck; cervicothoracic kyphosis, an upper spine deformity; lumbar spinal stenosis, or narrowing of the space surrounding the lower spinal cord; spondylolisthesis, in which a vertebra has slipped out of place; and failed back syndrome, a chronic pain condition that can occur after spine surgery.

In research, Theologis' interests include assessing and managing risk for patients having surgery or revision surgery (a procedure to repair a failed implant), as well as managing complications after spine surgery. He is also interested in health policy, global health and educating the next generation of doctors.

Theologis earned his medical degree at UCSF, where he then completed his residency in orthopedic surgery, serving as chief resident in his final year. He completed a fellowship in adult and pediatric spine surgery at Washington University in St. Louis, one of the most prestigious fellowships in the field. He has also completed an orthopedics fellowship in Ghana through Health Volunteers Overseas, where he trained surgeons and operated on patients with severe spinal deformities.

Theologis has received local and national awards for orthopedic research, including the California Orthopaedic Association's J. Harold LaBriola, M.D. Resident Award; the Northern California Orthopaedic Society's Resident Research Award; the 2014 Most Outstanding Paper Award from The Spine Journal; and the UCSF Clinical & Translational Science Institute's Outstanding Resident Research Award.

Education & training

Board certification

  • Orthopaedic Surgery, American Board of Orthopaedic Surgery

Fellowship

  • Orthopaedic Surgery, Washington University School of Medicine

Residency

  • Orthopaedic Surgery, UCSF Graduate Medical Education

Internship

  • Orthopaedic Surgery, UCSF Graduate Medical Education

Degree

  • MD, University of CA at San Francisco

My expertise

Locations

    Reviews

    Average rating

    4.9
    4.9 out of 5 Stars
    290 ratings
    About provider reviews

    Showing 1-6 of 50 reviews

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    • 5 out of 5 Stars
      December 19, 2025

      Courteous, very good at explaining the surgical procedure and the follow up and recovery post surgery

    • 5 out of 5 Stars
      December 19, 2025

      Dr. Alexander Antonios Theologis is very patient, knowledgeable, precise and caring

    • 5 out of 5 Stars
      December 10, 2025

      DR. Theologis and his staff were excellent in my care pre and post. I'm so glad he was my surgeon.

    • 5 out of 5 Stars
      October 23, 2025

      He is very personable. Easy to talk to about concerns. Caring and helpful.

    • 5 out of 5 Stars
      October 22, 2025

      I did not feel rushed (as I often do with other providers).

    • 4.7 out of 5 Stars
      October 22, 2025

      Good Drs

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