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. John Zelko:
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- Currently 2.5 of 4 stars
The overall average patient rating of Dr. John Zelko is Good.
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Specialties & Research
Dr. John Zelko, FACS, MD is board certified in Surgery.
- He has special expertise in 2 areas:
- Breast Cancer
Education & Awards
Dr. Zelko graduated from University of Hawaii, Honolulu. He has 1 awards.
Dr. Zelko has 11 hospital affiliations:
- Legacy Emanuel Hospital & Health Ctr
- Legacy Good Samaritan Hosp & Med Ctr
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- Additional Information
- Where does Dr. John R. Zelko practice?
Dr. John Zelko practices Surgery near Portland, OR.
See Portland Surgeons.