Dr. David Nacionales

Specialty

Neurology
Neurologists are medical doctors trained to diagnose and treat a wide range of conditions affecting the brain, spinal cord, and peripheral nerves. They manage issues such as epilepsy, migraines, multiple sclerosis, and movement disorders. These specialists perform detailed evaluations and manage complex treatments to improve neurological function and long-term quality of life for their patients.

Dr. David Nacionales

Neurologist in Chino, California

Co-Founder of Thrive Neurology

Living with a neurological condition can be frustrating, overwhelming, and often life-changing. Whether you’re struggling with chronic migraines, memory problems, seizures, dizziness, numbness, tremors, neuropathy, or another neurological concern, you deserve answers—and a physician who takes the time to listen.
Dr. David Nacionales, DO is a board-certified neurologist and fellowship-trained epilepsy specialist who co-founded Thrive Neurology with a simple mission: to make exceptional neurological care more accessible, more personal, and more comprehensive.
Too often, patients wait months to see a neurologist only to feel rushed through their appointment. At Thrive Neurology we believe neurological care should be different. Every patient deserves a thoughtful evaluation, clear communication, and a treatment plan tailored to their individual goals and lifestyle.

🌟 Philosophy of Care

At Thrive Neurology, patients have access to advanced neurological testing and specialized procedures—all within one practice whenever possible. This streamlined approach allows for faster diagnoses, more coordinated care, and fewer unnecessary referrals.

🩺 Professional Background

  • Dr. Nacionales earned his Doctor of Osteopathic Medicine degree from the College of Osteopathic Medicine of the Pacific at Western University of Health Sciences and is board-certified in Neurology

✅ Why Choose Dr. Nacionales?

  • Migraine and headache disorders
  • Epilepsy and seizures
  • Memory loss and dementia
  • Parkinson’s disease and movement disorders
  • Peripheral neuropathy
  • Carpal tunnel syndrome
  • Concussion and traumatic brain injury
  • Multiple sclerosis
  • Sleep disorders
  • General neurological conditions

🏥 Services Offered

  • Electroencephalography (EEG)
  • Ambulatory and long-term EEG monitoring
  • EMG and nerve conduction studies
  • Cognitive testing
  • Home sleep testing
  • Ultrasound-guided neurological procedures
  • Botox treatment for chronic migraine and other neurological disorders
  • Peripheral nerve blocks

Why Patients Choose Thrive Neurology?

At Thrive Neurology, our goal is simple: deliver expert neurological care with compassion, efficiency, and respect.
Patients appreciate:

  • Personalized care from an experienced neurologist
  • Comprehensive neurological testing in one practice
  • Evidence-based treatment recommendations
  • Clear communication and patient education
  • Convenient telemedicine options when appropriate
  • Multiple office locations throughout Southern California

New Patients

We welcome new patients. Once your appointment is scheduled, our office will provide electronic registration forms and consent documents. Completing your paperwork before your visit helps us review your medical history in advance and allows more time to focus on your care during the appointment.

Patient Portal

After your first visit, patients receive secure access to our patient portal where they can review visit summaries, laboratory and imaging results, request medication refills, communicate with the office, and manage appointments.

Billing

For billing questions or available online payment options, please contact our office. Our staff is happy to assist with insurance verification and payment inquiries.

Contact Information

Doctor Address

  • Inland Empire 5475 Walnut Ave., Suite G
    Chino, CA 91710
  • Orange County 12555 Garden Grove Blvd., Suite 401
    Garden Grove, CA 92843
  • Long Beach 1760 Termino Ave., Suite 207
    Long Beach, CA 90804
  • Website: www.thriveneurology.com
  • Phone: (657) 377-0587
  • Fax: (657) 427-6543

Working Hours

  • Mon – Fri: 8:00 AM – 5:00 PM
  • Sat – Sun: CLOSED

Affiliated Hospitals

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