Board-certified and fellowship-trained spine and neurosurgeon, Mark Liker, MD, FAANS, FACS, is the founder and senior partner at California Neurosurgical Institute, with locations in Encino, and Valencia, California.

With a broad range of technical and clinical experience in complex open and minimally invasive spine surgery, brain surgery, functional neurosurgery, stereotactic neurosurgery, and radiosurgery, patients can feel confident that they are receiving the best of care.

Dr. Liker was recognized by the U.S. News & World Report as being among the top 1% of neurosurgeons in Los Angeles.

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Dr. Bjorn Lobo is a board-certified and dual fellowship-trained neurosurgeon specializing in spine surgery and brain tumor surgery.

He is a partner at California Neurosurgical Institute and vice-chair of surgery at Dignity Health Northridge Hospital.

His surgical practice encompasses the full spectrum of neurosurgery with a focus on brain and skull base tumors, trigeminal neuralgia, and degenerative spinal disease.

Combining meticulous surgical techniques with compassionate patient care, Dr. Lobo brings world-class care to his patients.

 He received Henry Mayo Newhall Hospital’s Health Care Hero Award in 2019 for excellence in surgical patient care.

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Dr. Travis Ladner is a board-eligible neurosurgeon who brings world-class expertise and applies the latest techniques in open and minimally invasive surgery to treat complex brain and spine conditions.

Dr. Ladner received both undergraduate and doctorate degrees from Vanderbilt University in Nashville, Tennessee. He was awarded the Highest Honors in Neuroscience as an undergraduate.

In medical school, he was selected as an investigator in the Vanderbilt Medical Scholars Research Program, and received numerous grants to study cerebrovascular disease.

He completed his neurosurgery residency at Mount Sinai Hospital in New York City, where he was appointed chief resident.
During residency, he pursued an additional one-year enfolded sub specialty fellowship in reconstructive and minimally invasive spinal surgery.

His surgical philosophy is to use technology to personalize the approach, reduce unnecessary procedures, and enhance recovery after surgery. He spends time listening to his patients to determine the nature of their problem and how to best address it, with or without surgery. 

Maureen Aoys, DC, MS, PA-C is a board-certified physician assistant with surgical experience in Cosmetic/Plastics, Laparoscopic Gastric Banding, and now Neurosurgery. She has a Master of Science in Physician Assistant Studies from Western University of Health Sciences.

Ms. Aoys graduated from the University of California, Los Angeles with a Bachelor of Science degree in Kinesiology and Psychology. She received her Doctor of Chiropractic degree from the Los Angeles College of Chiropractic.

As well as working in private practice as a Doctor of Chiropractic, Ms. Aoys was an Assistant Professor and clinical supervisor at the Southern California University of Health Sciences teaching clinical and diagnostic skills to chiropractic students for 11 years.

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