4.3
17 Ratings with 3 written Reviews
Summary
Dr. Errol Grannum specializes in ophthalmology, bringing over three decades of expertise to eye care. He earned his medical degree from Yale University School of Medicine and has dedicated 33 years to helping patients preserve and improve their vision. Dr. Grannum is fluent in both Spanish and English, allowing him to serve diverse communities with clear communication.
Dr. Grannum practices at DHR Health Edinburg and sees patients in McAllen, Texas. He focuses on treating glaucoma and open-angle glaucoma, conditions that can threaten vision if left untreated. His expertise also includes managing blepharitis, an inflammation of the eyelids that causes discomfort. Dr. Grannum performs comprehensive dilated eye exams and laser iridotomy procedures to help diagnose and treat various eye conditions. Patients rate him 4.4 out of 5 stars on Vitals for his care.
Dr. Grannum practices at DHR Health Edinburg and sees patients in McAllen, Texas. He focuses on treating glaucoma and open-angle glaucoma, conditions that can threaten vision if left untreated. His expertise also includes managing blepharitis, an inflammation of the eyelids that causes discomfort. Dr. Grannum performs comprehensive dilated eye exams and laser iridotomy procedures to help diagnose and treat various eye conditions. Patients rate him 4.4 out of 5 stars on Vitals for his care.
AI-generated from data on this provider profile.
Quick Facts
- 33 years of experience
- 33 insurance plans accepted
- speaks Spanish, English
- Yale University School Of Medicine
- 3 written reviews
- 1 specialty
- 9 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
 |  |  | |
| Dr. Errol Olwyn Grannum, MD | Dr. Sandip Suresh, MD | Dr. Humair Khan, MD | Dr. Vitaliy Vladimirovich Zak, MD |
| Ophthalmology | Ophthalmology | Ophthalmology | Ophthalmology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 33 Years of Experience | 14 Years of Experience | 31 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks Spanish, English | Speaks English | Speaks English | Speaks English |
| McAllen , TX | Webster , TX | Webster , TX | Mcallen , TX |
| Med School: Yale University School Of Medicine | Med School: University of Minnesota | Med School: Baylor College of Medicine | Med School: M Gorky Donetsk National Medical University Faculty Of General Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Errol Olwyn Grannum
Medical Specialties
Dr. Errol Olwyn Grannum has the following specialty
Specialty Expertise
Dr. Errol Olwyn Grannum has the following 9 areas of expertise
Certifications, License, & Education
33 Years Experience
MEDICAL LICENSE
Medical Doctor, Texas, 2026, Active
EDUCATION & TRAINING
Medical School
Yale University School Of MedicineGraduated in 1993
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Frequently Asked Questions
- Does Dr. Errol Grannum accept my insurance?
- You can see the insurance plans that Dr. Errol Grannum accepts on their Vitals profile.
- Is Dr. Errol Grannum accepting new patients?
- Dr. Errol Grannum has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. Errol Grannum accept virtual/telehealth appointments?
- Dr. Errol Grannum has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. Errol Grannum's office located?
- Dr. Errol Grannum's office is located at 1910 S 1st St, McAllen, TX, 78503.
- How can I make an appointment with Dr. Errol Grannum?
- You can find contact information for Dr. Errol Grannum here on Vitals.
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