Dr. Dennis Obrien MD Neurologist

Dr. Dennis Obrien is a neurologist in Billings, Montana and is affiliated with Gwinnett Hospital System. He received his medical degree from University of Arizona College of Medicine and has been in practice for 20 years. He is one of 13 doctors at Gwinnett Hospital System who specialize in Neurology.

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Office Location

See Contact Information

Specialty & Clinical Interests

Neurologist: General Neurology

Hospital Affiliation

Gwinnett Hospital System

Education & Medical Training

University of Utah
Residency, Internal Medicine, 1994 - 1995

University of Utah
Residency, Neurology, 1995 - 1998

University of Arizona College of Medicine
Class of 1994

Certifications & Licensure

American Board of Psychiatry and Neurology
Certified in Neurology

IL State Medical License
Active through 2014

MT State Medical License
Active through 2013

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • BCBS Blue Card PPO
  • CIGNA HMO
  • CIGNA Open Access
  • CIGNA PPO
  • Coventry Florida - Employer Group PPO
  • First Choice
  • First Health PPO
  • Great West PPO
  • Humana ChoiceCare Network PPO
  • Multiplan PHCS PPO
  • Multiplan PPO
  • Tufts Health Plan PPO
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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