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. Sonya Ehresmann:
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Specialties & Research
Dr. Sonya Ehresmann, MD is board certified in Internal Medicine.
Education & Awards
Dr. Ehresmann graduated from University of Southern California , Los Angeles.
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- Additional Information
- Where does Dr. Sonya M. Ehresmann practice?
Dr. Sonya Ehresmann practices Internal Medicine near Altadena, CA.
See Altadena Internists.