Welcome to Pacific Brain & Spine


We are the premier neurosurgical practice of Northern California. Our mission is to provide exceptional care for our patients as we navigate complex neurosurgical conditions together. We provide compassionate, personalized, and innovative care to the communities we serve. Together we build trust with the goal of improving our patients’ health and quality of life.

Pacific Brain & Spine Medical Group Staff

We value:

• Patient Centered Care
• Education
• Accountability
• Commitment
• Excellence

Pacific Brain & Spine Medical Group

Our Specialties

Our surgeons’ expertise and training focuses on three specialties, covering the entire spectrum of neurosurgical disorders:

Pacific Brain & Spine Medical Group

Patient Portal 

Use our patient portal to:

• Request an appointment
• Access your medical records
• Refill a prescription
• Fill out your medical forms
• Email your doctor


Want to schedule an appointment?

Our Surgeons


Our three board certified neurosurgeons specialize in comprehensive care for patients with neurological conditions, ranging from the spine and peripheral nerve system to the most complex brain disorders.

Our neurosurgeons maintain the highest quality of medical care through education and training in innovative surgical technologies and treatments.

Jeffrey B. Randall, M.D.

Ronnie I. Mimran, MD

Learn More About Our Surgeons

Since 1990, Pacific Brain & Spine has helped thousands of patients overcome significant challenges, and return to good health and quality in their lives.

Our clinical and administrative staff work together as a team to build trust with patients and make sure they receive compassionate, personalized and coordinated care. We treat each patient as a whole person.

Want to schedule an appointment?


Pacific Brain & Spine serves patients at its three East Bay locations in Danville, Castro Valley and Oakland, and Eden Medical Center, one of the leading Neuroscience Centers in the East Bay.

Danville Office

Crow Canyon Medical Center
1320 El Capitan, Suite 300
Danville, CA 94526

Castro Valley Office

20055 Lake Chabot Road, Suite 110
Castro Valley, CA 94546

Oakland Office

80 Grand Avenue, Suite 800
Oakland, CA 94612

What Are People Saying About Us?

Dr. Mimran named one of Bay Area’s ‘Top Doctors’