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. Johan Zwaan is Excellent.
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Macular Degeneration Patient Education Learn all about wet and dry macular degeneration, common symptoms and how this diease affects the eye.Before Visiting Dr. Zwaan Learn More
Specialties & Research
Dr. Johan Zwaan, MD is board certified in Ophthalmology.
Education & Awards
Dr. Zwaan graduated from Universiteit Van Amsterdam.
Dr. Zwaan has 15 hospital affiliations:
- CHRISTUS Santa Rosa Hospital
- Texas Heart Hospital
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- Additional Information
- Dr. Johan Thomas Zwaan MD is a male Ophthalmologist and practices in Ophthalmology.
- Where does Dr. Johan T. Zwaan practice?
- Dr. Johan Zwaan has 1 office location.
Dr. Johan Zwaan practices Ophthalmology near San Antonio, TX.
See San Antonio Ophthalmologists.