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License & Identifications

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. William Marr:

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Specialties & Research

Dr. William Marr, MD is board certified in Ophthalmology.

Education & Awards

Dr. Marr graduated from The University of Texas at San Antonio.


Dr. Marr has 6 hospital affiliations:

  • St Joseph Regional Health Center 
  • College Station Medical Center 

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Additional Information
Dr. William Harris Marr MD is a male Ophthalmologist, has 31 years of experience and practices in Ophthalmology.
Where does Dr. William H. Marr practice?
Dr. William Marr has 1 office location.
Dr. William Marr practices Ophthalmology near Bryan, TX.
See Bryan Ophthalmologists.