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. Alfonso Sierra:
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The overall average patient rating of Dr. Alfonso Sierra is Excellent.
Specialties & Research
Dr. Alfonso Sierra, MD is board certified in Pediatrics.
Education & Awards
Dr. Sierra graduated from Universidad De Antioquia, Medellin.
Dr. Sierra has 2 hospital affiliations:
- Lowell General Hospital
- Children's Hospital
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- Additional Information
- Dr. Alfonso E Sierra MD is a male Pediatrician, has 42 years of experience and practices in Pediatrics.
- Where does Dr. Alfonso E. Sierra practice?
- Dr. Alfonso Sierra has 2 office locations.
Dr. Alfonso Sierra practices Pediatrics near Dracut, MA.
See Dracut Pediatricians.