Best Neurosurgeon Ontario Near Me

4worldlovers: Board-certified neurosurgeon Ali H. Mesiwala, MD, FAANS, takes a solution-based approach to determine anatomic and functional abnormalities and then treats them with leading-edge technologies and integrative medicine.

At his three offices in Newport Beach, Marina del Rey, and Rancho Cucamonga, California, he focuses on helping all of their patients return to their normal lives, getting back into motion as quickly as possible.

The team treats a vast array of neurological conditions. After intensive neurological exams and diagnostic testing, they recommend the best nonsurgical treatments for each person's unique health care needs. They recommend surgery when symptoms are severe or persist despite conservative care.

Patients seek Dr. Mesiwala for his expertise in brain and spine surgery, as well as peripheral nerve surgery and artificial disc replacement surgery.

He's an expert in complex brain and skull base surgeries, and he has the most experience in artificial disc replacements on the West Coast, including multi-level operations and all types of spinal decompressions.

Dr. Mesiwala is a leader in the field of minimally invasive sacroiliac (SI) joint surgery and has performed endoscopic cranial and spinal surgery since 2004. No matter where pain originates, patients get relief after he performs neuromodulation surgery.

After earning a Bachelor of Science in biomedical engineering and electrical engineering from Johns Hopkins University in Baltimore, Maryland, Dr. Mesiwala received his Doctor of Medicine from the University of California, San Francisco.

Then he finished his neurological surgery residency at the University of Washington in Seattle, Washington.

He completed his skull base and cerebrovascular fellowships at the University of Washington, International Neuroscience Institute in Hannover, Germany, and the University of Pittsburgh in Pittsburgh, Pennsylvania.

4worldlovers: Helping patients find relief from headaches and other neurological conditions is our goal and mission at Parkside Medical Group of Upland, CA. Our team will work with you to identify the cause of your condition, and to select the most effective treatment plan possible.


Dr. Mohsen Ali graduated from Damascus University School of Medicine and completed his training in Neurology at Tulane Medical School in New Orleans. Dr. Mohsen Ali is certified by the American Board of Psychiatry and Neurology. He started practicing Neurology in 1979 in San Dimas, CA.

His office performs Trigger Point injections and special procedures for treating difficult cases of migraines and cluster headaches. Dr. Hohsen Ali’s experience, education, and knowledge assures patients that they are in highly qualified hands.

Dr. William S. Baek is a triple board-certified neurologist. He graduated from the Seoul National University College of Medicine in 1999 and completed his Neurology residency at the University of Chicago, along with a fellowship in Clinical Neurophysiology at UC San Diego, in 2006.

He completed an NIH post doctorate research fellowship at the Children’s Hospital in Philadelphia.

AQ/Peer Review Committee Member at the Kaiser Fontana Medical Center

Donald M. Palatucci Advocacy Leadership Forum member of the Class of 2014

He was the official bilingual moderator for the 2009 AOCCN, IFCN, in Seoul, S. Korea. He is on the Editorial Board for the Journal of Neurology and Neuroscience and the JSM Alzheimer’s Disease and Related Dementia.

As a certified interpreter for Korean and Spanish, English, and Spanish.

Dr. Baek provides Clinical Neurophysiology services (EEG, EMG, EP) as well as Botox injections.

Dr. Rajan Chopra is a board certified neurologist with a specialty in headache medicine. He earned his undergraduate degree from the University of California at Irvine, and his medical degree from the Saba University School of Medicine.

4worldlovers:
Providers in your plan or accepting new patients, call 1-800-464-4000 (toll free) or 711 (TTY for the hearing/speech impaired)


The information in this online directory is updated periodically. The availability of physicians, hospitals, providers, and services may change. Information about a practitioner is provided to us by the practitioner or is obtained as part of the credentialing process. If you have questions, please call us at 1-800-464-4000 (toll free). For the hearing and speech impaired: 1-800-464-4000 (toll free) or TTY 711 (toll free). You can also call the Medical Board of California at 916-263-2382, or visit their website.


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