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 O'Neill:
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The overall average patient rating of Dr. John O'Neill is Good.
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Specialties & Research
Dr. John O'Neill, MD is board certified in Dermatology.
- He has special expertise in 5 areas:
- Acne (Acne Vulgaris)
- Acne Rosacea
- Skin Cancer
Education & Awards
Dr. O'Neill graduated from Georgetown University, Washington. He has 2 awards.
Dr. O'Neill has 6 hospital affiliations:
- Suburban Hospital
- George Washington Univ Hospital
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- Additional Information
- Dr. John Francis O'Neill MD is a male Dermatologist, has 29 years of experience and practices in Dermatology.
- Where does Dr. John F. O'Neill practice?
- Dr. John O'Neill has 2 office locations.
Dr. John O'Neill practices Dermatology near Washington, DC.
Additional practice locations include: Bethesda, MD.
See Washington Dermatologists.