Dr. Eric J. Arias, MD
Colorado’s Premier Neurosurgeon
- Top Doctor in Neurosurgery — Castle Connolly & 5280 Magazine, 2024, 2025, 2026 & 2027
- Director of Neurovascular Surgery, HCA HealthONE Swedish
- Medical Director, CarePoint Neurosurgery and Spine
Compassionate, relatable, and engaging, Dr. Eric J. Arias, MD, is a board-certified neurosurgeon serving communities across the Front Range from his offices in Denver and Fort Collins. Known for his compassionate care and clear communication, Dr. Arias helps patients regain mobility and return to active, fulfilling lives through advanced brain and spine treatments.
Working hand-in-hand with patients and their loved ones, Dr. Arias guides each person through a thoughtful and comprehensive treatment process—surgical or non-surgical—delivered in a way that’s easy to understand.
Advanced brain and spine treatments in Denver & Fort Collins
Dr. Arias walks patients through all surgical and non-surgical options to build personalized treatment plans.
Expertise in Minimally Invasive Spine Surgery
Dr. Arias runs a robust spine surgery practice. Specializing in neck and lower back disorders, Dr. Arias prioritizes conservative and minimally invasive techniques. His goal is to preserve motion and avoid spinal fusion whenever possible, using innovative solutions like disc replacement to speed recovery and maintain flexibility.
Comprehensive Treatment for Vascular Lesions
Patients with aneurysms, arteriovenous malformations (AVMs), or carotid stenosis benefit from Dr. Arias’ rare expertise. Unlike most specialists who offer either open surgery or endovascular procedures, Dr. Arias provides both, ensuring an unbiased, personalized treatment plan for every patient.
Specialized Brain Tumor Care
Dr. Arias is a recognized leader in the neurosurgery community, specializing in treating challenging brain tumors, including meningiomas, glioblastomas, and pituitary tumors. He uses minimally invasive, hair-preserving techniques to achieve complete tumor removal when possible and offers advanced options such as Gamma Knife radiosurgery and endoscopic approaches for select cases.
Dual trained in neurosurgery and endovascular neuroradiology
Dr. Arias is dual trained in neurosurgery and endovascular neuroradiology, allowing him to offer both traditional and minimally invasive options for complex brain and spine conditions—all from one trusted source.
Patients with lesions affecting the blood vessels of the brain and neck, such as aneurysms, arteriovenous malformations (AVMs), and carotid stenosis, greatly benefit from Dr. Arias’ sub-specialized training.
Conditions & treatments
Click through the Conditions & Treatments below to learn more and see before-and-after images from patients.
Spine
Cerebrovascular
Compassionate, Relatable, Engaging
Every Option, Explained Clearly
His philosophy is simple: guide patients through every option—surgical and non-surgical—with clarity and compassion.
What patients say
“Dr. Arias is AWESOME!!! He took the time on my first visit as well as surgery day to explain everything in detail.”
Verified patient · Healthgrades · December 2023
“In light of the situation, Dr Arias was the most professional and caring doctor I have met.”
Verified patient · Healthgrades · April 2025
“Dr. Arias listens well and answers questions extremely well. One feels respected and understood.”
Verified patient · Healthgrades · July 2020
“Dr. Arias is kind, compassionate, caring, brilliant and has a wonderful sense of humor.”
Verified patient · Healthgrades · August 2020
“Dr. Arias was the only one of 3 neurologist and 2 neurosurgeons who recognized my condition…”
Verified patient · Healthgrades · October 2020
“I had an outstanding experience. He makes sure that he takes the time to make sure you understand your diagnosis…”
Verified patient · Healthgrades · November 2018
From the blog
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Dr. Eric J Arias, MD – Neurosurgeon & Neurointerventional Surgery