Professional Summary


  • Baylor College of Medicine - Houston, in Doctor of Medicine, 2005

Chief Residency

  • Baylor College of Medicine - Houston, in Internal Medicine, 2009


  • Baylor College of Medicine - Houston, in Internal Medicine, 2008


  • Fellowship in Hematology/Oncology from Mayo Clinic

Board Certifications

  • AM BD INTERNAL MEDICINE (HEMATOLOGY) awarded in 10/24/2012

Professional Memberships

  • American Society of Clinical Oncology
  • Alpha Omega Alpha


  • Hematology/Oncology

Language Spoken

  • English

Verified Patient Ratings

The Patient Rating score is an average of all patient responses to physician related questions in the Press Ganey Medical Practice survey. Patients receive a survey to complete within 1-2 days of their physician visit. Responses are measured on a scale of 1 to 5, with 5 being the best score.

Patient Satisfaction

(4.9) 462 ratings

Verified Patient Comments

Comments also are gathered from the medical practice survey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

Sep 26, 2023
Good. Thank you
Sep 26, 2023
Good. Thank you
Sep 16, 2023
Dr Lewis is always professional and kind to the max. I never feel rushed and ALWAYS feel he has my best interests at heart.
Sep 2, 2023
I feel blessed to have Dr Lewis as my Healthcare provider.
Aug 17, 2023
Dr. Lewis is an amazing doctor and a wonderful person! So grateful to be in his care! His staff is great too!
Aug 2, 2023
Always good experience
Aug 2, 2023
Dr Lewis took time to talk with me and encourage me to have a good attitude and not give up the fight.
Jul 26, 2023
Mark Lewis is why I'm handling my diagnosis so well and have hope to keep moving forward. He's professional but cares on a personal level. He hears and supports me in my health journey to have the life I want. It helps me feel like I have some control.
Jul 24, 2023
He's amazing!!!
Jul 24, 2023
We r so lucky to have found Dr Lewis !
Jul 19, 2023
Dr. Lewis and his staff always give outstanding care.
Jul 18, 2023
Dr Lewis is the best. I am so glad my daughter found him for help with my NETs
Jul 18, 2023
All very good
Jul 16, 2023
Dr. Lewis understands and has the latest technical knowledge on the subject of Neuroendrocrin Carcanoid Cancer
Jul 6, 2023
Dr. Mark Lewis is the best doctor I have ever had.
Jul 5, 2023
Anytime I have the opportunity to meet with Dr. Lewis I come out feeling full of hope and optimistic, even with the difficult journey I'm on.
Jun 25, 2023
I always feel like Dr Lewis is attentive to my situation, my health and my time.
Jun 23, 2023
Dr. Lewis shows me the scans and explains what the next treatment should accomplish.
Jun 23, 2023
I have confidence in Dr. Lewis and know he has fought a similar Cancer
Jun 20, 2023
The best!
May 31, 2023
Dr. Lewis has always been very caring and his communication great.
May 30, 2023
Dr Lewis is one of the best dr's I have ever associated with
Apr 2, 2023
Dr. Lewis was excellent, as always!
Mar 24, 2023
Dr Lewis came right out and told me that this was the healthiest he had seen me in a long time. I had had a cancer and ) since the last time I saw him. I think the removal of that sick set of organs has made me feel better generally. And, as Dr Lewis stated, now we only have to worry about the in my liver. Continue with the monthly infusions and carry on!
Mar 12, 2023
Dr Mark A Lewis is the best. Best care possible. Spends time with me and explains everything.
Mar 2, 2023
Dr. Lewis has great personality and bed side manners at every appointment I have been to. Shows his concern for you and answers all questions, or worries you may have. Awesome Doctor!!!
Feb 8, 2023
Dr LEWIS IS AMAZING. He cares and he explains everything.
Feb 5, 2023
Dr Lewis is very good at explaining treatment options and potential side effects with those options.
Jan 27, 2023
He's very understanding, pleasant and personable, and really cares about my health issues.
Jan 13, 2023
Dr Lewis is so kind and caring. He really listens and engages me in my condition.

Practice Location

Intermountain Medical Oncology - IMC

5171 S Cottonwood St Bldg 1 Ste 610 Murray, UT
Call for Hours
Provider's Main Location
Accepting new patients
Accepting SelectHealth Insurance Plans