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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Charles O'Brien:

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Charles O'Brien is Excellent. Dr. O'Brien has been reviewed by 1 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Specialties & Research

Dr. Charles O'Brien, MD is board certified in Emergency Medicine.

Education & Awards

Dr. O'Brien graduated from Loma Linda University.


Dr. O'Brien has 1 hospital affiliations:

  • Community Hospital of Long Beach 

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Additional Information
Dr. Charles Basker O'Brien MD is a male Emergency Medicine Specialist, has 11 years of experience and practices in Emergency Medicine.
Where does Dr. Charles B. O'Brien practice?
Dr. Charles O'Brien has 1 office location.
Dr. Charles O'Brien practices Emergency Medicine near Huntington Beach, CA.
See Huntington Beach Emergency Physicians.