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Michael Koss

Michael Koss, MD

4.5525 ratings

Gastroenterology

Video Visit
Accepting New Patients

Highlights

Age Groups Seen

  • Adults

Languages

  • English
  • Russian

Provider Gender

Male

About Michael Koss and Banner Safety Practices

Care Philosophy

My goal is to provide excellent care to all of my patients.

Specializing In

Acid reflux/GERD
C.Diff
Cirrhosis
Colitis
Colon Cancer
Crohn's Disease/Ulcerative Colitis
Diverticulitis
EGD Consult
Elevated liver enzymes
Gastric ulcers
Hepatic Fibrosis
H Pylori
IBD
Pancreatitis


Interests & Activities

I enjoy literature, martial arts and learning about history.

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 Boswell Medical Center
Banner Del E Webb Medical Center

Expertise

Education

  • Fellowship: University of Illinois at Chicago, Gastroenterology, 2001
  • Residency: University of Connecticut School of Medicine, Internal Medicine, 1998
  • Medical School: Umdnj Robert Wood Johnson Medical School, 1995

Board Certifications

  • Internal Medicine: American Board of Internal Medicine, 2019
  • Gastroenterology: American Board of Internal Medicine/Gastroenterology, 2019

Video

Locations

  1. Banner Gastroenterology Center
    • 13640 North Plaza Del Rio Boulevard, Peoria, AZ 85381
Need help scheduling? Call 623-876-3800

Testimonials

4.5 out of 5.0

525 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 11/29/2025

    Very attentive and professional

    5 out of 5 stars
    Reviewed on 11/23/2025

    Great physician. Very professional and easy to talk to. Dr. Koss listens to what I have to say.

    5 out of 5 stars
    Reviewed on 10/27/2025

    Dr Koss listens to what I have to say, he is very courteous and professional. I have recommended him to family and friends

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

    Michale Koss was very good and I was well taken care of

    5 out of 5 stars
    Reviewed on 9/20/2025

    Personable. Had done all my colonoscopies. Refereed by Dr. Fein.

    5 out of 5 stars
    Reviewed on 9/3/2025

    Very good at listening, caring

    5 out of 5 stars
    Reviewed on 8/2/2025

    He was very attentive.

    5 out of 5 stars
    Reviewed on 7/8/2025

    I felt he listened to my concerns.

    5 out of 5 stars
    Reviewed on 7/2/2025

    Very good customer service

    5 out of 5 stars
    Reviewed on 6/26/2025

    We appreciate Dr. Koss's mannerisms and warm communications with my wife from Day 1.

    5 out of 5 stars
    Reviewed on 6/23/2025

    Listens to your concerns and addresses them

    5 out of 5 stars
    Reviewed on 5/19/2025

    I love all my doctors with Banner Health!

    5 out of 5 stars
    Reviewed on 12/21/2024

    Easy to talk to. On time.

    5 out of 5 stars
    Reviewed on 9/12/2024

    He has been my GI Dr for many years. He's very knowledgeable and professional

    5 out of 5 stars
    Reviewed on 9/12/2024

    He is pretty much business. Got a job to do let's get it done.

    5 out of 5 stars
    Reviewed on 9/11/2024

    Very pleasant. This was my second round with him and he is very likable.

    5 out of 5 stars
    Reviewed on 8/21/2024

    The Dr was very professional and answered all my questions.

    5 out of 5 stars
    Reviewed on 8/18/2024

    He cares and is Professional in the way he approaches his Patients

    5 out of 5 stars
    Reviewed on 8/16/2024

    Wonderful doctor

    5 out of 5 stars
    Reviewed on 8/11/2024

    I appreciate Dr Koss being the one to do my colonoscopy. He made me feel comfortable.

    5 out of 5 stars
    Reviewed on 8/10/2024

    He is a bright intelligent, caring doctor.

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

    Very kind, and professional. Explained everything perfectly. He treated me with dignity and kindness.

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

    He addressed all my quesrtions, patienly and ith detail

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

    He's a personable Dr Makes you feel like you're in safe and confident hands, surrounds himself with a Great surgical staff

    5 out of 5 stars
    Reviewed on 8/1/2024

    He listened carefully to my issues and allowed me to voice my concerns about certain medications.

    5 out of 5 stars
    Reviewed on 7/28/2024

    Explained things well

    5 out of 5 stars
    Reviewed on 7/21/2024

    He was very professional

    5 out of 5 stars
    Reviewed on 7/18/2024

    He was on point, and explained himself

    5 out of 5 stars
    Reviewed on 7/15/2024

    He was professional, friendly and thorough. He was able to care for my husband several months earlier as well.

    5 out of 5 stars
    Reviewed on 7/15/2024

    He was very nice

    5 out of 5 stars
    Reviewed on 7/11/2024

    Very straightforward and professional doctor and staff made me completely comfortable.

    5 out of 5 stars
    Reviewed on 7/11/2024

    Professional and personable

    5 out of 5 stars
    Reviewed on 7/7/2024

    Good bedside manner, very thorough, renders patient care with dignity and grace. Thank you Dr. Koss.

    5 out of 5 stars
    Reviewed on 7/4/2024

    Courteous, kind and pleasant.

    5 out of 5 stars
    Reviewed on 6/30/2024

    He was very understanding and helpful.

    5 out of 5 stars
    Reviewed on 6/30/2024

    He is very Direct and to the point

    5 out of 5 stars
    Reviewed on 6/23/2024

    He was very pleasant and answered my questions. Not exactly on time, but not far off. Everything went well.

    5 out of 5 stars
    Reviewed on 6/21/2024

    He was great!!!

    5 out of 5 stars
    Reviewed on 6/20/2024

    I had a good experience with my visit with Dr Koss

    5 out of 5 stars
    Reviewed on 6/19/2024

    He was very stress free, he explained what he did and got me my results very quickly.

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

    Good doctor.

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

    Made me feel very comfortable and answered my questions

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

    He answered all my questions

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

    I felt comfortable with him and he took great care of me.

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

    Thoroughly explained procedure and follow up. Communication was excellent

    5 out of 5 stars
    Reviewed on 12/10/2023

    He really listened to me and made me feel valued.

    5 out of 5 stars
    Reviewed on 12/7/2023

    He gets right to the point.

    5 out of 5 stars
    Reviewed on 9/6/2023

    Dr. Koss takes the time with his patients and helps them understand what is going on and offers solutions to address and take care of the problem in a way you can understand.

    5 out of 5 stars
    Reviewed on 8/13/2023

    I trust him.

    5 out of 5 stars
    Reviewed on 7/31/2023

    Very knowledgeable.

    5 out of 5 stars
    Reviewed on 7/10/2023

    He listens to your concerns and then offers ways he can help you

    5 out of 5 stars
    Reviewed on 6/26/2023

    Companionable, knowledge and eager to address my concerns

    5 out of 5 stars
    Reviewed on 5/22/2023

    He was pleasant, caring and listened to me.

    5 out of 5 stars
    Reviewed on 5/18/2023

    Genuinely interested in my needs, not hurried

    5 out of 5 stars
    Reviewed on 5/16/2023

    Dr Koss is very thorough

    5 out of 5 stars
    Reviewed on 5/15/2023

    Dr Koss is professional, cares about his patients and has accumulated vast knowledge, and understands how to best treat ailments presented.

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

    Muy buen servicio

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

    He is a very thorough, caring and compassionate physician. He takes time to listen to you and your concerns and makes sure that all of your questions are answered.

    5 out of 5 stars
    Reviewed on 4/2/2023

    I like him!

    5 out of 5 stars
    Reviewed on 3/12/2023

    Good doctor.

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

    Doctor listens to my concerns.

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

    I'm glad I was recommended to Dr. Koss! Very thorough and I feel like I will still receive the best care possible.

    5 out of 5 stars
    Reviewed on 2/26/2023

    He understood my issues. He listened intently and delivered his recommendations. Very direct and to the point.

    5 out of 5 stars
    Reviewed on 2/22/2023

    He's friendly and cares about his patients.

    5 out of 5 stars
    Reviewed on 12/10/2022

    Scheduling was easy and no waiting at the office. I also like Dr Koss.

    5 out of 5 stars
    Reviewed on 10/23/2022

    Dr. Koss' genuine concern, humor, and loyalty to his patient's whether during routine medical appointments or when we are hospitalized. He makes himself readily available which is a rarity for my husband and I.

    5 out of 5 stars
    Reviewed on 6/11/2022

    Dr. Koss' office is well organized and the staff is congenial and professional. I have had interactions with his department for many years and they are always great.

    5 out of 5 stars
    Reviewed on 3/10/2022

    I didn't feel scared or embarrassed to express my concerns. I felt like Dr. Koss listened and believed my symptoms. Everyone was really kind.

    5 out of 5 stars
    Reviewed on 11/29/2021

    Easy to get to, to check in and didn't have to wait-. Have seen Dr. Koss before and like him as at Dr.

    5 out of 5 stars
    Reviewed on 10/22/2021

    There was no wait time. Everyone is very conscientious about Covid guidelines. Staff is very friendly and courteous. Doctor Koss is very efficient and great about spending time to answer any questions.

    5 out of 5 stars
    Reviewed on 9/30/2021

    No matter in person or via phone I find Dr Koss to be kind, engaged and providing excellent expert care.

    5 out of 5 stars
    Reviewed on 7/12/2021

    Felt comfortable. Met with Dr. Koss in person made me feel important and gave me confidence in my upcoming procedure.

    5 out of 5 stars
    Reviewed on 7/26/2020

    I was seen by the nurse and Doctor shortly after checking in. Both were pleasant and informative. I was very pleased.

    5 out of 5 stars
    Reviewed on 7/14/2020

    It is a very convenient location for me. It's clean and I like the doctor I have there.

    5 out of 5 stars
    Reviewed on 7/3/2020

    Everyone that works there is awesome. The staff was so nice and helpful. The Dr listened to me and addressed my concerns. They made me feel like they really cared.

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

    He listens to my needs and we always agree on my care plan and orders for my home health provider

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

    Provider was nice, friendly and explained everything! The procedure was a success and all is well.

    5 out of 5 stars
    Reviewed on 1/28/2024

    He's a kind and competent physician.

    5 out of 5 stars
    Reviewed on 10/19/2023

    He is an excellent doctor.

    5 out of 5 stars
    Reviewed on 5/15/2023

    Very helpful

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

    Friendly, knowledgeable. Good listening skills

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