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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- Currently 3.5 of 4 stars
The overall average patient rating of Dr. Marcia Ko is Excellent.
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Specialties & Research
Dr. Marcia Ko, MD is board certified in Internal Medicine and Rheumatology.
- She has special expertise in 9 areas:
- Hip Osteoarthritis
- Knee Osteoarthritis
- Osteoarthritis (Hand and Wrist)
- Rheumatic Diseases
- Women's Health
Education & Awards
Dr. Ko graduated from University of Washington, Seattle. She has 1 awards.
Dr. Ko has 2 hospital affiliations:
- Mayo Clinic Hospital
- Mayo Clinic - Arizona