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 Ruiz:
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- Currently 3.5 of 4 stars
The overall average patient rating of Dr. William Ruiz is Excellent.
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Specialties & Research
Dr. William Ruiz, MD is board certified in Family Medicine.
Education & Awards
Dr. Ruiz graduated from University of Southern California , Los Angeles.
Dr. Ruiz has 5 hospital affiliations:
- Greater El Monte Community Hospital
- Monterey Park Hospital
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- Additional Information
- Where does Dr. William S. Ruiz practice?
Dr. William Ruiz practices Family Medicine near Hawthorne, CA.
See Hawthorne Family Physicians.