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).
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Education & Awards
Dr. O'Brien graduated from University College Dublin.
Dr. O'Brien has 2 hospital affiliations:
- Tobey Hospital Site of Southcoast Hospitals Group
- Southcoast Hospitals Group,Inc
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- Additional Information
- Dr. Catherine Lloyd O'Brien MD is a female Allergist & Immunologist, has 45 years of experience and practices in Allergy & Immunology and Pediatrics.
- Where does Dr. Catherine L. O'Brien practice?
- Dr. Catherine O'Brien has 4 office locations.
Dr. Catherine O'Brien practices Allergy & Immunology and Pediatrics near Wareham, MA.
Additional practice locations include: Norwell, MA and Kingston, MA.
See Wareham Allergists and Wareham Pediatricians.