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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).


Our records indicate this doctor is retired.

Learn more about Dr. Charles O'Brien:

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Specialties & Research

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

Education & Awards

Dr. O'Brien graduated from State University of New York at Buffalo.


Dr. O'Brien has 2 hospital affiliations:

  • Highland Park/North Shore University Health System 
  • Evanston/North Shore University Health System 

> > > > Dr. Charles O'Brien, MD

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Additional Information
Dr. Charles Wilson O'Brien MD is a male Pediatrician and practices in Pediatrics and Surgery.
Where does Dr. Charles W. O'Brien practice?
Dr. Charles O'Brien has 2 office locations.
Dr. Charles O'Brien practices Pediatrics and Surgery near Tehachapi, CA.
Additional practice locations include: Arroyo Grande, CA.
See Tehachapi Pediatricians and Tehachapi Surgeons.