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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. Gregory Barnes:

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Specialties & Research

Dr. Gregory Barnes, MD is board certified in Anesthesiology.

Education & Awards

Dr. Barnes graduated from University of Utah, Salt Lake City.


Dr. Barnes has 1 hospital affiliations:

  • Chapman Medical Center 


  • Indonesian

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Additional Information
Dr. Gregory Brim Barnes MD is a male Anesthesiologist, has 27 years of experience and practices in Anesthesiology.
Where does Dr. Gregory B. Barnes practice?
Dr. Gregory Barnes has 2 office locations.
Dr. Gregory Barnes practices Anesthesiology near Garden Grove, CA.
Additional practice locations include: Santa Ana, CA.
See Garden Grove Anesthesiologists.