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Errol Grannum, MD, Ophthalmology, McAllen, TX, Doctor's Hospital at Renaissance

ErrolOlwynGrannumMD

Ophthalmology McAllen, TX

Glaucoma Related, Retinal Disease

Physician

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Education & Training

  • University of Southern California/LAC+USC Medical Center
    University of Southern California/LAC+USC Medical CenterFellowship, Glaucoma, 1997 - 1998
  • Yale-New Haven Medical Center
    Yale-New Haven Medical CenterResidency, Ophthalmology, 1994 - 1997
  • Yale-New Haven Medical Center
    Yale-New Haven Medical CenterInternship, Internal Medicine, 1993 - 1994
  • Yale School of Medicine
    Yale School of MedicineClass of 1993

Certifications & Licensure

  • FL State Medical License
    FL State Medical License 1999 - 2025
  • TX State Medical License
    TX State Medical License 1998 - 2024

Professional Memberships

Hospital Affiliations