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. Gerald O'Brien:
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- Currently 4 of 4 stars
The overall average patient rating of Dr. Gerald O'Brien is Excellent.
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Specialties & Research
Dr. Gerald O'Brien, MD is board certified in Internal Medicine, Critical Care Medicine, and Pulmonary Disease.
He has special expertise in 6 Areas, including AIDSHIV Acquired Immunodeficiency Syndrome, Chronic Thromboembolic Disease, and Congenital Heart Defects.3 more special expertise areas
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Education & Awards
Dr. O'Brien graduated from Ponce School of Medicine .More Education & Awards
Dr. O'Brien has 6 hospital affiliations:
- Christiana Care Health Services
- St Francis Hospital
Accepted Insurance Plans
Dr. O'Brien accepts these health insurances in at least one office:
- Independence Blue Cross - 2 plans
- Humana - 2 plans
- United Healthcare - 17 plans
- Cigna - 9 plans
- Blue Cross Blue Shield of Delaware - 1 plan
- Unicare - 5 plans
- USA H & W Network - 1 plan
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- Additional Information
- Where does Dr. Gerald M. O'Brien practice?
Dr. Gerald O'Brien practices Internal Medicine, Critical Care Medicine, Pulmonary Disease, Psychiatry, and Critical Care Medicine near Newark, DE.
Additional practice locations include: Philadelphia, PA and Middletown, DE.
See Newark Internists, Newark Critical Care Practitioners, Newark Pulmonologists, Newark Psychiatrists, and Newark Urgent Care Centers.