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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Specialties & Research
Dr. Charles O'Brien, MD is board certified in Internal Medicine and Cardiovascular Disease.
He has special expertise in 1 Area, including Antisocial Personality Disorder.
More Specialties & Research
Education & Awards
Dr. O'Brien graduated from Creighton University, Omaha.More Education & Awards
Dr. O'Brien has 3 hospital affiliations:
- Avera Mckennan Hospital & University Health Center
- Sanford USD Medical Center
- Spencer Municipal Hospital
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- United Healthcare - 12 plans
- Medica Health Plans - 15 plans
- DAKOTACARE - 1 plan
- Great-West Healthcare - 1 plan
- Cigna - 3 plans
More Accepted Insurance
Similar doctors nearby
- Additional Information
- Where does Dr. Charles P. O'Brien practice?
Dr. Charles O'Brien practices Internal Medicine, Cardiovascular Disease, Cardiology, Interventional Cardiology, and Emergency Medicine near Sioux Falls, SD.
See Sioux Falls Internists, Sioux Falls Cardiologists, and Sioux Falls Emergency Physicians.