St. Mary's Neurosurgery

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A Department of St. Mary's Regional Medical Center

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St. Mary's Neurosurgery is a specialty practice, affiliated with St. Mary's Regional Medical Center, located at 77 Bates Street in Lewiston.

Here at St. Mary's Neurosurgery, we preform a number of neurological surgeries including:

  • Kyphoplastys and Vertebroplastys
  • Cervical Fusions
  • Lumbar Fusions
  • Lumbar Laminectomies
  • Lumbar Microdiskectomies
  • Brain Tumor Resections
  • Insertion of dorsal column stimulators, baclofen and morphine pumps
  • Carpal Tunnell Release
  • Epicondyelectomy
  • X-Stop
  • Ulnar Entrapment Surgery
  • Craniotomies
For the most up-to-date information regarding neurosurgical conditions and treatments, please follow the American Association of Neurological Surgeons link.

Dr. Marc Christensen, MD, PhD is our neurosurgeon on staff, and Allison Gagnon, PA-C is our physician's assistant. We are open Monday through Friday 7:30am to 4:30 pm. We also have a satellite office located at 76 Eastern Ave in Augusta. Dr. Christensen sees patients there every other Friday. St. Mary's Neurosurgery is managed by Liz Hebert. Call Heather or Wendy at 207-777-4460 to schedule an appointment or learn more about our practice.

Contact Us

77 Bates Street, Suite 103
Lewiston, ME 04240
Fax 207-777-4466




Marc D. Christensen, MD,PhD




Allison Gagnon, PA-C

adam johnson, PA


Adam Johnson, NP

© 2015 St. Mary's Regional Medical Center 93 Campus Avenue, Lewiston, Maine 04240 Phone: 207-777-8100