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. Kathryn Grinnen:
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- Dr. Kathryn Grinnen DO is a female Internist and practices in Internal Medicine.
- Where does Dr. Kathryn Grinnen practice?
- Dr. Kathryn Grinnen has 2 office locations.
Dr. Kathryn Grinnen practices Internal Medicine near Lewes, DE.
See Lewes Internists.