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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The overall average patient rating of Dr. Oscar Ma is Excellent.
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Specialties & Research
Dr. Oscar Ma, MD is board certified in Emergency Medicine.
Education & Awards
Dr. Ma graduated from George Washington University.
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- Additional Information
- Dr. Oscar John Ma MD is a male Emergency Medicine Specialist, has 21 years of experience and practices in Emergency Medicine.
- Where does Dr. Oscar J. Ma practice?
- Dr. Oscar Ma has 1 office location.
Dr. Oscar Ma practices Emergency Medicine near Portland, OR.
See Portland Emergency Physicians.