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Dr. Errol O Grannum Is this you?

About Dr. Errol O Grannum

Dr. Errol O Grannum, MD is a Doctor primarily located in Harlingen, TX. He has 29 years of experience. His specialties include Ophthalmology. Dr. Grannum has received 3 awards. He speaks English.

Rating Overview

14 Ratings with 1 Comment

The overall average patient rating of Dr. Errol O Grannum is Great. Dr. Errol O Grannum has been rated by 14 patients. From those 14 patients 1 of those left a comment along with their rating. The overall rating for Dr. Errol O Grannum is 4.2 of 5.0 stars.

Mapbox Map of Dr. Errol O Grannum

Primary Address

Errol Olwyn Grannum Md

27691 Bass Blvd
Harlingen, TX 78552
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Dr. Errol O Grannum has the following 1 specialty

  • Ophthalmology

    An ophthalmologist has the training to do much more than just prescribe glasses. They are physicians specially trained to diagnose and treat disorders of the eyes and vision. These doctors are experts on the complicated anatomy of the eye and are trained to treat eye diseases through both medical and surgical methods.
    Some common conditions that ophthalmologists treat are cataracts, glaucoma, strabismus, diabetic retinopathy, macular degeneration and amblyopia. In addition, ophthalmologists can provide prescriptions for eye glasses and contact lenses and perform LASIK surgery and other corrective surgeries for refractive errors like myopia (near-sightedness), hyperopia (far-sightedness), astigmatism and presbyopia.

  • Specialty Expertise

    Dr. Errol O Grannum has the following 9 expertise

  • Eye Pain
  • Glaucoma
  • Blindness
  • Cataract
  • Eye Exam
  • Vision Issues
  • Lasik Surgery
  • Macular Degeneration
  • Diabetic Retinopathy


Showing 5 of 14

Very long period to wait almost 3 hours plus the female worker were gossiping and laughing out loud and the wrost is the window they see you standing there and they don't wont open it to greet you or acknowlege if you.need and assistance and your there standing like an idiot. But the worst part of the visit is when dr. Grannum is finish talking with you and he recommends his assiant to complete the apointment surgery process they put you in a room where they have big tub awares and it looks more like a storage room than a glaucoma office for clients. Never less when a doctor recommends surgery without looking at any if your pass medical retina history that sort of worries me. Yes he is a graduate from yale but we are human and when we rush for a quick buck mistake can and will happen and he just didnt convience me enough that there weren't any other options for my glaucoma disease which i have researched and found could benefit me better.
Easy Appointment
Friendly Staff
Accurate Diagnosis
Bedside Manner
Spends Time with Me
Appropriate Follow-up
Full Review Rating Breakdown
Five Stars
Easy Appointment
Friendly Staff
Accurate Diagnosis
Bedside Manner
Spends Time with Me
Appropriate Follow-up
Full Review Rating Breakdown
Four Stars
Five Stars
Four Stars
  • Awards

    3 Awards

  • Patients' Choice Award

    Patients' Choice Award (2016, 2018)

    Patients' Choice recognition reflects the difference a particular physician has made in the lives of his/her patients. The honor is bestowed to physicians who have received near perfect scores, as voted by patients.

  • Compassionate Doctor Recognition

    Compassionate Doctor Recognition (2016, 2018)

    Compassionate Doctor certification is granted to physicians who treat their patients with the utmost kindness. The honor is granted based on a physician's overall and bedside manner scores.

  • On-Time Doctor Award

    On-Time Doctor Award (2016)

    Vitals On-Time + Promptness Award recognizes doctors with consistent high ratings for timeliness of appointments. The honor is granted based on a physician's overall and promptness scores.

  • Education

    29 Years Experience

  • Yale University School Of Medicine

    Graduated in 1989

  • Accepted Insurance

    Please contact the office for more information.

Locations & Directions

Errol Olwyn Grannum Md, 27691 Bass Blvd, Harlingen, TX
  • Similiar Doctors

    Dr. Errol O Grannum is similar to the following 3 Doctors near Harlingen, TX.