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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The overall average patient rating of Dr. Gregory Nelligan is Excellent.
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Specialties & Research
Dr. Gregory Nelligan, MD is board certified in Internal Medicine and Gastroenterology.
Education & Awards
Dr. Nelligan graduated from University of Illinois at Chicago.
Dr. Nelligan has 1 hospital affiliations:
- William S. Middleton Memorial Veterans Hospital
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- Additional Information
- Dr. Gregory Keith Nelligan MD is a male Internist, has 28 years of experience and practices in Internal Medicine and Gastroenterology.
- Where does Dr. Gregory K. Nelligan practice?
- Dr. Gregory Nelligan has 3 office locations.
Dr. Gregory Nelligan practices Internal Medicine and Gastroenterology near Belvidere, IL.
Additional practice locations include: Madison, WI and Rockford, IL.
See Belvidere Internists and Belvidere Gastroenterologists.