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) 410 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.

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.
Jan 9, 2023
Dr. Lewis is an amazing doctor.
Jan 6, 2023
The very best!
Dec 22, 2022
Dr Lewis and team are excellent.
Dec 10, 2022
Dr. Lewis is fantastic! I never feel rushed. He communicates so well with my other physicians. He puts me at total ease. I would recommend him to anyone and everyone!
Oct 24, 2022
Dr. Lewis is a wonderful doctor.
Oct 17, 2022
Dr. Lewis is amazing & through
Oct 11, 2022
Dr Lewis answers all questions. He is very concerned about neuropathy related to chemo & asked that I especially look out for it.
Oct 11, 2022
Both Dr Lewis & his assistant always very helpful.
Oct 11, 2022
If all physicians were like Dr Lewis our healthcare systems would be perfect
Aug 29, 2022
Aug 19, 2022
Speaking with Dr. Lewis is always comforting.
Jun 26, 2022
The numbers don't go high enough. Dr. Lewis took a complex situation and made it simple to understand. His professionalism was fantastic, hIs compassion unparalleled.
Jun 24, 2022
Dr Lewis listened to our questions and clarified many things for us.
Jun 23, 2022
Dr Lewis is truly an amazing resource who has my total trust and confidence!
Jun 22, 2022
I left with answers I was concerned about for about 3 months.. It was very good experience
Jun 21, 2022
Great experience
Jun 12, 2022
Best doctor ever!!
Jun 1, 2022
Dr. Mark A. Lewis is excellent!!! He is very interested in and concerned for my health challenges and condition. He is ALWAYS prepared for each of my appointments with not only high awareness of my lab and/or imaging results but high-level interpretation and assessment, as well. His desire and dedication to pleasantly and humbly serve the patient - and not just provide a doctor download and dictate - permeates every minute of every interaction. He is a wonderful anomaly!
May 18, 2022
Great Doctor and staff. They really care!
May 10, 2022
Excellent experience!!!
Apr 27, 2022
Explanation was excellent. Was not rushed.
Apr 14, 2022
Dr. Lewis was AMAZING! He explained everything so well. He was very caring and his presence was very calming. I would recommend him to anyone who needed to see him.

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