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 Hallsten:
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Specialties & Research
Dr. Kathryn Hallsten, MD is board certified in Internal Medicine.
Education & Awards
Dr. Hallsten graduated from University of California at San Francisco.
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- Where does Dr. Kathryn J. Hallsten practice?
Dr. Kathryn Hallsten practices Internal Medicine near Menlo Park, CA.
See Menlo Park Internists.