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John Twelker

John Twelker, OD

4.9364 ratings

Pediatric OphthalmologyPediatric OptometryOptometry

Accepting New Patients

Highlights

Age Groups Seen

  • Pediatrics
  • Teenagers
  • Adults

Languages

  • English

Provider Gender

Male

About John Twelker and Banner Safety Practices

Care Philosophy

My practice has a team philosophy that strives to deliver comprehensive, expert care.

Specializing In

Optometry
Ophthalmology
Vision Science
Public Health

Interests & Activities

I enjoy riding my bike and listening to music, especially live music!

All Banner facilities are pleased to provide interpretation services to our patients and their companions for no charge - just ask when you arrive.

Hospital Affiliations

Banner - University Medical Center South

Preferred Phone Number

520-694-1460

Expertise

Education

  • Medical Education: UC Berkeley School of Optometry, 1992

Video

Locations

  1. Banner - University Medicine Ophthalmology Clinic
    • 707 North Alvernon Way, Suite 301, Tucson, AZ 85711
    • Phone:
  2. Banner - University Medicine Multispecialty Services Clinic
    • 7165 North Pima Canyon Drive, Tucson, AZ 85718
    • Phone:
Need help scheduling? Call 520-694-1460

Testimonials

4.9 out of 5.0

364 ratings

All patient experience ratings and testimonials are submitted by actual patients and verified by a leading independent customer experience company. Patient identities are withheld to ensure confidentiality and privacy.

Search reviews
    5 out of 5 stars
    Reviewed on 1/30/2026

    Dr Twelker is very thorough and gave me a lot of education

    5 out of 5 stars
    Reviewed on 12/8/2025

    Dr. Twelker is very proficient and caring. Always provides the best service and care for my eyes.

    5 out of 5 stars
    Reviewed on 11/17/2025

    Very professional

    5 out of 5 stars
    Reviewed on 11/10/2025

    Dr. Twelker took my concerns seriously and helped me with my issue.

    5 out of 5 stars
    Reviewed on 11/3/2025

    Very professional but very easy to talk to. He listened to all my concerns regarding my eyes and took the time examining them to prescribe two new refractions

    5 out of 5 stars
    Reviewed on 10/3/2025

    Dr. Twelker is always pleasant, answered all my questions and addressed my concerns.

    5 out of 5 stars
    Reviewed on 9/22/2025

    Listens, explains issues well, friendly, clearly knowledgeable

    5 out of 5 stars
    Reviewed on 7/4/2025

    He provided clear explanation of medical problem and treatment options.

    5 out of 5 stars
    Reviewed on 5/16/2025

    Caring friendly expert

    5 out of 5 stars
    Reviewed on 11/4/2024

    He was very friendly and seemed to be genuinely concerned about my vision issues. I have faith in his care and expertise.

    5 out of 5 stars
    Reviewed on 9/14/2024

    Dr Twelker treated me professionally. He explained my tests thoroughly and listened to my concerns regarding my tests.

    5 out of 5 stars
    Reviewed on 8/29/2024

    Thorough eye examination and discussion of results

    5 out of 5 stars
    Reviewed on 6/27/2024

    Good interaction. He was very easy to speak with and very professional.

    5 out of 5 stars
    Reviewed on 5/22/2024

    Dr. Twelker is very knowledgeable and explains everything very thorough.

    5 out of 5 stars
    Reviewed on 5/20/2024

    He is not trying to upsell a new prescription. He is genuine, honest, and had a good bedside manner. His staff thinks highly of him. He seems to take care of all those around him. My kid’s pediatrician recommended him, the whole family sees Doctor Twelker now.

    5 out of 5 stars
    Reviewed on 5/6/2024

    Excellent doctor!

    5 out of 5 stars
    Reviewed on 4/8/2024

    Dr Twelker was FANTASTIC! He addressed all my concerns and questions and although I know he was busy, did not rush to make sure I understood everything. He is excellent with his patient communication and made sure I understood everything in a very compassionate and caring way!

    5 out of 5 stars
    Reviewed on 4/1/2024

    He explained things clearly. He listened to my input and took it seriously. He diagnosed a potentially serious condition and reassured me it was treatable. He was positive and encouraging. He seems to really know his stuff.

    5 out of 5 stars
    Reviewed on 2/20/2024

    He is excellent at answering my questions and giving me options for optimal eye health

    5 out of 5 stars
    Reviewed on 2/19/2024

    Dr Twelker is awesome always very caring and always meeting and serving our needs

    5 out of 5 stars
    Reviewed on 2/12/2024

    Dr Twelker is very thorough and listens.

    5 out of 5 stars
    Reviewed on 2/3/2024

    I have had appointments with Dr. Twelker for a few years now, and I find him to be very friendly and caring.

    5 out of 5 stars
    Reviewed on 1/22/2024

    He is knowledgeable, friendly, and professional.

    5 out of 5 stars
    Reviewed on 1/18/2024

    Interacting with Dr. Twelker is always pleasant. He is very knowledgeable and takes time to talk with me about my eye health and answers all of my questions.

    5 out of 5 stars
    Reviewed on 12/14/2023

    Dr. Twelker was knowledgeable, informative, friendly.

    5 out of 5 stars
    Reviewed on 12/14/2023

    Excellent ophthalmologist.

    5 out of 5 stars
    Reviewed on 10/23/2023

    Easy going and friendly.

    5 out of 5 stars
    Reviewed on 9/7/2023

    Dr. Twelker was very explanatory about my vision and future care. He took the time to discuss my current health issue that was affecting my vision.

    5 out of 5 stars
    Reviewed on 8/21/2023

    He is great!

    5 out of 5 stars
    Reviewed on 8/17/2023

    Explains very well what he is doing.

    5 out of 5 stars
    Reviewed on 8/14/2023

    Professional, skilled, pleasant. Rita, his assistant was excellent as well.

    5 out of 5 stars
    Reviewed on 8/11/2023

    I have been with Dr Twelker for probably close to 20 years and I trust him. He takes the time to listen and explains anything you're not sure of. I highly recommend him to everyone I speak with.

    5 out of 5 stars
    Reviewed on 7/24/2023

    Dr. Twelker is wonderful. Knowledgeable, professional and I feel comfortable with his care.

    5 out of 5 stars
    Reviewed on 6/8/2023

    Knowledge, efficiency, caring.

    5 out of 5 stars
    Reviewed on 5/17/2023

    He not only is a very competent doctor but he has personality and listens to your concerns.

    5 out of 5 stars
    Reviewed on 4/24/2023

    Always kind, professional, and takes the time to educate.

    5 out of 5 stars
    Reviewed on 4/13/2023

    Dr. Twelker was fantastic! He took the time to explain my condition to me along with options and suggestions. He is an incredible doctor!

    5 out of 5 stars
    Reviewed on 4/13/2023

    He addresses my concerns very calmly and is thorough.

    5 out of 5 stars
    Reviewed on 4/11/2023

    Great medical service.

    5 out of 5 stars
    Reviewed on 3/30/2023

    Competent. Great communication skills. Caring.

    5 out of 5 stars
    Reviewed on 3/20/2023

    Dr. Twelker is very detailed with his exams. Gives his undivided attention to our concerns in a comfortable atmosphere.

    5 out of 5 stars
    Reviewed on 3/2/2023

    I got the care I needed and he remembered things from our previous meeting that would not be in the chart.

    5 out of 5 stars
    Reviewed on 2/6/2023

    Caring provider.

    5 out of 5 stars
    Reviewed on 7/28/2022

    Kathryn in scheduling and Dr Twelker in opthamology were both outstanding

    5 out of 5 stars
    Reviewed on 3/17/2022

    Parking is close, there is a center to purchase your lenses, and Dr.Twelker is super pleasant.

    5 out of 5 stars
    Reviewed on 9/24/2021

    Dr. Twelker is professional and very capable. I would highly recommend him.

    5 out of 5 stars
    Reviewed on 9/19/2021

    I would recommend Dr. Twelker for an optometrist.

    5 out of 5 stars
    Reviewed on 9/5/2021

    Very comfortable with Dr Twelker

    5 out of 5 stars
    Reviewed on 9/2/2021

    Dr. Twelker was very competent and professional. His staff performed their jobs well. I felt well taken care of.

    5 out of 5 stars
    Reviewed on 8/8/2021

    Dr. Twelker was pleasant, informative, and very helpful regarding my questions.

    5 out of 5 stars
    Reviewed on 8/2/2021

    Knowledge, expertise, and focus from Dr. Twelker who is also kind and caring. He provides information in a clear, precise format that is easy to understand. The support staff are also bright, caring, and attentive.

    5 out of 5 stars
    Reviewed on 7/31/2021

    Dr. Twelker is an excellent optometrist as well as thoughtful and patient in manner. I would recommend him.

    5 out of 5 stars
    Reviewed on 7/17/2021

    Appointment was on time. All of the staff was pleasant and professional. Dr. Twelker was professional and explained his recommendations completely.

    5 out of 5 stars
    Reviewed on 6/25/2021

    Dr. Twelker was great. He took the time to explain my eye health to me and make a recommendation of next steps.

    5 out of 5 stars
    Reviewed on 4/15/2021

    The staff was polite and Dr Twelker is very knowledgeable.

    5 out of 5 stars
    Reviewed on 1/25/2021

    All personnel very professional. Called back to the room on time. Everyone introduced themselves. Dr. Twelker very thorough in his exam. Answered all questions.

    5 out of 5 stars
    Reviewed on 9/15/2020

    Dr. Welker is amazing with kids. Very friendly staff and was comfortable and felt safe during our visit.

    5 out of 5 stars
    Reviewed on 7/22/2020

    Dr. Twelker is great!

    5 out of 5 stars
    Reviewed on 10/22/2025

    Easy to communicate with, felt he cared, listened to me.

    5 out of 5 stars
    Reviewed on 12/19/2024

    He knows what he's doing.

    5 out of 5 stars
    Reviewed on 9/11/2021

    Dr. Twelker is friendly and very informative.

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