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. John O'Bell:
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- Currently 2.5 of 4 stars
The overall average patient rating of Dr. John O'Bell is Good.
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Specialties & Research
Dr. John O'Bell, MD is board certified in Internal Medicine and Nephrology.
- He has special expertise in 2 areas:
- Kidney Disease
- Kidney Stones (Kidney Calculi)
Education & Awards
Dr. O'Bell graduated from Case Western Reserve University , Cleveland.
Dr. O'Bell has 12 hospital affiliations:
- Rhode Island Hospital
- The Miriam Hospital
Accepted Insurance Plans
Dr. O'Bell accepts these health insurances in at least one office:
- Cigna - 1 plan