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. Gregory Marshall, MD is board certified in Urology.
He has special expertise in 1 Area, including General Urology.
More Specialties & Research
Education & Awards
Dr. Marshall graduated from University of Southern California , Los Angeles.More Education & Awards
Dr. Marshall has 14 hospital affiliations:
- Kaiser Foundation Hospital - Martinez/Walnut
- Kaiser Foundation Hospital - Walnut Creek
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- Additional Information
- Where does Dr. Gregory A. Marshall practice?
Dr. Gregory Marshall practices Urology near Walnut Creek, CA.
See Walnut Creek Urologists.