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. Ralph Lewis:
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Specialties & Research
Dr. Ralph Lewis, MD is board certified in Surgery and Thoracic Surgery (Cardiothoracic Vascular Surgery).
- He has special expertise in 1 area:
- Lung Cancer
Education & Awards
Dr. Lewis graduated from Cornell University, New York.
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- Additional Information
- Where does Dr. Ralph J. Lewis practice?
Dr. Ralph Lewis practices Surgery, Thoracic Surgery, and Cardiothoracic Vascular Surgery near Basking Ridge, NJ.
See Basking Ridge Surgeons.