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. William Keyser:
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Education & Awards
Dr. Keyser graduated from University of Mississippi , Jackson.
Dr. Keyser has 2 hospital affiliations:
- Novato Community Hospital
- Sonoma Valley Hospital
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- Additional Information
- Dr. William Keyser MD is a male Emergency Medicine Specialist, has 41 years of experience and practices in Emergency Medicine.
- Where does Dr. William Keyser practice?
- Dr. William Keyser has 2 office locations.
Dr. William Keyser practices Emergency Medicine near San Rafael, CA.
Additional practice locations include: Sonoma, CA.
See San Rafael Emergency Physicians.