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Dr. Errol Grannum, MD

Ophthalmology* Age 59
Dr. Errol Grannum, MD
5.0 (5 Ratings)

Offers telehealth

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Dr. Errol Grannum, MD is an Ophthalmologist in Harlingen, TX.
Dr. Errol Grannum, MD
5.0 (5 Ratings)
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Dr. Errol Grannum, MD

Ophthalmology* Age 59
Harlingen, TX
Accepting new patients
31 years of experience

Offers telehealth

Dr. Errol Grannum, MD is an Ophthalmologist in Harlingen, TX.

About

Dr. Grannum graduated from yale University. Dr. Errol Grannum, MD is an Ophthalmologist in Harlingen, TX and has 31 years experience. Dr. Grannum currently practices at Ascension Medical Group Wisconsin-Greenfield and are affiliated with Rio Grande Regional Hospital. Dr. Grannum has experience treating conditions like Blepharitis among other conditions at varying frequencies. At present, Dr. Grannum received an average rating of 5.0/5 from patients and has been reviewed 5 times. Dr. Grannum's office accepts new patients and telehealth appointments. Dr. Grannum also speaks Spanish. Dr. Grannum accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Experience Check

Enter a condition or procedure
Blepharitis
Glaucoma Surgery
Iridectomy
Blepharitis
Glaucoma Surgery
Iridectomy
Entropion
Eyelid Disorders
Glaucoma
  • View other providers who treat Glaucoma
Trichiasis
Iridotomy
Dry Eyes
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Farsightedness
Senile Cataracts
Eyelid Surgery
Accommodation Disorders
Allergic Conjunctivitis
Astigmatism
Cataract
  • View other providers who treat Cataract
Chronic Conjunctivitis
Corneal Diseases
Diabetic Macular Edema (DME)
Diabetic Retinopathy
Eye Infections
Floaters
  • View other providers who treat Floaters
Lacrimal Gland Disorder
Macular or Retinal Edema
Nearsightedness
Ocular Hypertension
Pinkeye (Conjunctivitis)
Presbyopia
Pterygium
Tear Duct Disorders
Vitreous Hemorrhage
Cataract Removal Surgery
Contact Lens Fitting Services
Iris Biopsy
Acquired Coloboma
Acute Endophthalmitis
Age-Related Macular Degeneration
All Headaches (incl. Migraine)
Anterior Ischemic Optic Neuropathy
Aphakia and Other Disorders of Lens
Bell's Palsy
Benign Neoplasm of Choroid
Benign Neoplasm of Eye
Blind Hypertensive Eye
Blindness
Central Serous Chorioretinopathy
Chalazion
Chronic Endophthalmitis
Color Blindness
Conjunctiva Cyst
Conjunctiva Degeneration Deposit
Conjunctival Hemorrhage
Contusion of the Eyeball
Corneal Abrasion or Laceration
Corneal Ulcer
Dacryoadenitis
Degenerative Disorders of Globe
Diabetic Cataracts
Diplopia
  • View other providers who treat Diplopia
Drooping Eyelids (Ptosis)
Drusen
  • View other providers who treat Drusen
Ectropion of Eyelid
Endophthalmitis
Esotropia
Exotropia
Eye Cancer
Eye Pain
  • View other providers who treat Eye Pain
Eyelid Spasm
Foreign Body in Eye
Headache
  • View other providers who treat Headache
Hordeolum
Hypertensive Retinopathy
Hyphema
  • View other providers who treat Hyphema
Hypotony of Eye
Iridocyclitis
Ischemic Optic Neuropathy
Juvenile Cataract
Keratitis
Keratoconus
Lazy Eye
  • View other providers who treat Lazy Eye
Macular Hole
Migraine
  • View other providers who treat Migraine
Ophthalmoplegic Migraine
Optic Neuritis
Orbital Cellulitis
Paralytic Strabismus
Pinguecula
Pituitary Gland Cancer
Progressive High Myopia
Retinal Detachment and Retinal Tear
Retinal Dystrophy
Retinal Hemorrhage
Retinal Vascular Occlusion
Retinitis Pigmentosa (RP)
Squamous Blepharitis
Strabismus
Stye
  • View other providers who treat Stye
Sympathetic Uveitis
Ulcerative Blepharitis
Uveitis
  • View other providers who treat Uveitis
Visual Field Defects
Wet Age-Related Macular Degeneration
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage
B-Scan Ultrasound
Canthotomy
Conjunctivoplasty
Cornea Surgery
Destruction of Lesion of Retina and Choroid
Excision of Chalazion
Eye Test
  • View other providers who treat Eye Test
Farnsworth Lantern Test
Foreign Body Removal from Eye
Non-Cosmetic Chemodenervation
Ocular Surface Reconstruction
Paracentesis of Anterior Eye
Pterygium Surgery
Removal of Foreign Body from External Eye
Removal of Intraocular Foreign Body
Repair of Entropion or Ectropion
Repair of Eye Laceration
Scleral Reinforcement Surgery
Tear Duct Surgery
Ultrasound
Vision Screening
Vitreoretinal Surgery

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Blue Essentials HMO
    BestChoice PPO
    Blue Advantage HMO
    Blue Choice
    Blue Advantage HMO
  • Medica Choice
    Nexus Open Access
    Navigate POS
    Choice Plus POS
    Navigate HMO
    Options PPO
  • Superior Health Plan
  • National POS
    Preferred PPO
    Choice Care PPO
    Choice Care Network PPO
    Choice POS
  • Cigna PPO
    Open Access Plus
  • Aetna
    Signature Administrators PPO
    Aetna HMO
    Choice Plus POS II
    Open Choice PPO
    Premier Care Network Plus - Innovation Health
    Elect Choice (Open Access) EPO
    Managed Choice (Open Access) POS
  • Blue Card High Performance Network HPN
    Blue Card PPO
    Blue Advantage HMO

Locations

  1. 1 Office
    1205 N Ed Carey Dr, Harlingen, TX 78550
  2. 2 S.G.Krishnanm.D. & Associates
    1331 E 6th St, Weslaco, TX 78596
  3. 3 RGV Optical Images LLC
    103 S Gardner St, Falfurrias, TX 78355
  4. 4 Office
    1000 E Expy 83, La Joya, TX 78560
  5. 5 Office
    1113 Central Blvd Ste E, Brownsville, TX 78520
  6. 6 Errol O Grannum
    1910 S 1st St Ste 400, McAllen, TX 78503
  7. 7 Office
    1645 Treasure Hills Blvd Ste B10, Harlingen, TX 78550
  8. 8 Office
    1096 E Los Ebanos Blvd, Brownsville, TX 78520
  9. 9 Alexander P Sudarshan MD PA
    1315 E 6th St Ste 5, Weslaco, TX 78596

Patient Satisfaction

Likelihood to recommend Dr. Grannum
5.0
Based on 5 Reviews
5 Stars (5)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Oct 30, 2020
saved my 90 year old moms eye. Prior Dr. wanted to remove it. He is the best!
rohricht — Oct 30, 2020
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Photo: Dr. Errol Grannum, MD
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Dr. Grannum's Office & Staff

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  • Staff friendliness and courteousness
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Experience with Dr. Grannum

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  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Grannum?
Call now to make an appointment
(956) 423-2100

About Me

Languages Spoken
Spanish
Languages Spoken
Specialties*
Ophthalmology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • yale University
    1993
Medical Education
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Grannum communicate via email?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Grannum offer telehealth services or virtual visits?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum offer an online patient portal?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum have free onsite parking?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum offer weekend visits?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum offer evening visits?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Grannum specialize in working with LGBTQ+ community?
No responses yet.
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(0)
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Does Dr. Grannum accept insurance?
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(0)
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(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Errol Grannum, MD. To arrange an appointment, call the number on Dr. Grannum's profile.

Dr. Errol Grannum, MD is affiliated with Rio Grande Regional Hospital.

Hospital Affiliations

  • Rio Grande Regional Hospital

    101 E Ridge Rd, McAllen, TX