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. Mary O'Hara:
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Specialties & Research
Dr. Mary O'Hara, MD is board certified in Ophthalmology.
- She has special expertise in 1 area:
- Pediatric Ophthalmology
Education & Awards
Dr. O'Hara graduated from Uniformed Services University, Bethesda. She has 6 awards.
Dr. O'Hara has 6 hospital affiliations:
- University of California Davis Medical Center
- Mercy General Hospital
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- Additional Information
- Dr. Mary Ann O'Hara MD is a female Ophthalmologist, has 30 years of experience and practices in Ophthalmology.
- Where does Dr. Mary A. O'Hara practice?
- Dr. Mary O'Hara has 3 office locations.
Dr. Mary O'Hara practices Ophthalmology near Sacramento, CA.
See Sacramento Ophthalmologists.