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).
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Specialties & Research
Dr. William Ellis, FACS, MD is board certified in Ophthalmology.
- He has special expertise in 1 area:
- Refractive Surgical Procedures
Education & Awards
Dr. Ellis graduated from Washington University at St. Louis, Saint Louis.
Dr. Ellis has 10 hospital affiliations:
- Alta Bates Summit Medical Center- Summit Campus
- Alta Bates Summit Medical Center - Alta Bates Campus