Spinal Orthopedic Experts


Our goal is to provide excellent, individualized care to each and every patient. We understand each patient is unique and no two problems are alike. By taking a carefully tailored approach to each patient, we make sure all of your needs are addressed. Your journey with us is never alone – we are always with you each and every step of the way.

We are outcome-driven, minimally invasive, neurosurgical expert practice. Spinal disc disorders, sciatica, back pain, trigeminal neuralgia, brain tumors, compression fractures, radiculopathy are problems that we treat. Whether surgical or medical, our treatment is focused on our patients and getting back into their lives.

4 unique things that separate us from the pack.

1) Patient-centric
2) Hands-on treatment by the surgeon, not a PA or NP
3) Personalized post-operative treatment plans
4) Concierge treatment, we make their radiology appointment, other consultations, and deeply vested in their outcomes.


Dr. R. Gantwerker - M.D
R. Gantwerker, M.D. is a board-certified neurosurgeon specializes in the treatment of degenerative and traumatic diseases of the spine through minimally invasive techniques, spinal cord and brain injury, and brain tumors through traditional surgery or Gamma Knife Radiosurgery.

Dr. Gantwerker is committed to providing newly advanced techniques for the treatment of brain and spine diseases. He is proficient in both minimally-invasive and complex brain and spinal surgeries...


Halina Abner has been our practice manager since its establishment. Halina managed an elite orthodontic practice in Santa Monica for over 10 years. She is a top-notch manager whose tireless dedication to the practice and our patients energizes the entire office. Our patient’s satisfaction and comfort are her top priorities. Halina is a true believer in doing things right the first time, and is the heart and soul of the Craniospinal Center of Los Angeles.
Annick has been our Office coordinator for over a year. She comes with over 30+ years of experience in the medical field along with her Medical Assistant certification. Caring for patients is her passion. She is married with 3 children. Annick’s father was a master French chef and taught her how to cook, which has become her favorite past time.
Grace Hernandez is our newest team member. She received her diploma from UEI College in Medical Assistant. Grace comes with 10 years experience in the medical field. She enjoys taking care of patients and all facets of medical practice work. On her off time she is a mother of two amazing children, 7 and 9 years-old and also enjoys hiking.