Professional Summary


  • Oregon Health Sciences University SOM - Portland, in Doctor of Medicine, 2007


  • University of Colorado Hospital, Denver - Aurora, in General Surgery, 2012

Board Certifications

  • AM BD SURGERY awarded in 04/28/2013

Professional Memberships

  • American College of Surgeons
  • Utah Medical Association
  • American Board of Surgery
  • Alpha Omega Alpha
  • American Society of Breast Surgeons


  • General Surgery

Languages Spoken

  • English
  • Russian

Patient Education Materials

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

(4.8) 286 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.

Dec 17, 2022
I really felt like Dr Marshell work through all of the concerns and showed us area of change in my body and why the procedure was necessary and possible future outcomes based on previous findings
Dec 17, 2022
I would Highly recommend Dr Marshell for any procedure. He is well educated and skilled in his craft and a very caring physician.
Nov 26, 2022
Outstanding physician
Nov 19, 2022
Very clear explanations.
Nov 11, 2022
Staff is very quick and kind. Dr Marshall is awesome! Totally saved my life. If you need a sign to go for breast cancer screening then consider this it! .
Oct 29, 2022
Dr. Marshall always listens and responds with a caring demeanor.
Oct 10, 2022
De Marshall is the BEST!!!
Oct 7, 2022
We love Dr. Marshall!
Oct 3, 2022
Dr. Marshall was excellent in communicating the different options based on his discussion with me and review of reports from the ultrasound and my referring physician.
Sep 3, 2022
Dr. Marshall had a very positive attitude. He was patient, answered all questions, and even though it was end of day and he had to be tired, he took time and did not hurry me.
Jul 12, 2022
Dr Marshall put me at ease with his explanation of my procedure.
Jun 23, 2022
Jun 23, 2022
May 10, 2022
Excellent! Took time to talk, explain, and listen even though he was late from surgery and past time to be done for the day. Helped me feel much more at ease to have surgery.
May 4, 2022
I will definitely recommend others to Dr. Marshall.
May 4, 2022
Dr. Marshall explained everything perfectly and answered all of my questions.
Apr 20, 2022
Very good
Apr 20, 2022
Very good
Mar 10, 2022
Dr Marshell took the time to explain all options in terms I could understand
Mar 8, 2022
I thought Dr. Marshall was thorough.
Feb 24, 2022
I would rate Dr. Marshall higher than a very good! He is excellent. He is patient, explains things thoroughly, answers questions in detail that I understand, and does a GREAT job with the interns with him. I know he cares about me & my health. He is encouraging & ready to assist me with questions at any time. He is an amazing doctor!!!
Feb 4, 2022
Dr. Marshall is one of the best. He listens and I believe he truly has care and concern for his patients.
Jan 12, 2022
Dr Marshall is very knowledgeable and very kind and caring
Jan 12, 2022
Jan 11, 2022
Great doctor
Jan 11, 2022
Great doc.
Jan 2, 2022
Jan 2, 2022
Dec 21, 2021
Dec 21, 2021
Good experience
Dec 15, 2021
Took time to discuss something I didn't originally plan to address. Was very appreciative of the physician for taking the time.
Nov 30, 2021
He was professional, caring, knowledgeable.
Nov 13, 2021
Dr. Marshall took a lot of time answering all my questions and making sure I was at ease. I appreciated that he did not rush through the appointment.
Oct 15, 2021
Dr. Marshall is amazing in every way!
Oct 3, 2021
Great to work with. Worried when I became emotional
Sep 30, 2021
Gregg was fantastic.
Sep 28, 2021
Great experience
Sep 28, 2021
Great experience
Sep 14, 2021
Dr Marshall was a good listener. He impressed me with what he knew about my case indicating that he had actually read my file!
Jun 10, 2021
Dr Marshall was very kind and considerate!!!
Jun 3, 2021
very professional and caring.
May 20, 2021
excellent, great doctor
Apr 3, 2021
Dr. Marshall was excellent at putting me at ease. He explained the surgery well and I felt confident in his experience.
Mar 24, 2021
The Dr was very thorough about my test results and plans for my treatment . Extremely pleasant and patient with my questions . He helped me feel better about my medical situation .
Mar 23, 2021
Dr. marshall has an amazing bed side manner and obviously generally cares about his patients
Mar 17, 2021
he's awesome
Mar 16, 2021
treated very good the whole visit
Feb 13, 2021
5 star rating for this Surgeon and his Nursing staff
Jan 7, 2021
Dr. Marshall was awesome! I wish the in call doctor was as good as he was.
Jan 6, 2021
Dr.Marshall is very kind and treats me the must concern and care.
Dec 22, 2020
excellent provider
Nov 16, 2020
Doctor Marshall was AWESOME!!
Nov 1, 2020
Dr. Marshall always takes the time to listen to me.
Nov 1, 2020
Dr. Marshall treated me last year the day of my accident. I ended up in the ER after discharge for _____ . He advised to come see him, but, a year later on this visit. I complained of continued rib pain & he said he meant to see him for only a few mo
Nov 1, 2020
I wasted my time going back to Dr. Marshall.
Sep 24, 2020
Dr. Marshall was very competent and had professional and understandable communication skills.
Sep 15, 2020
Dr. Marshall is such a great doctor! He is so understanding and nice.
Sep 15, 2020
Everything was great other than the super long wait times.
Dec 5, 2017
Yes, there are 2 things that I would change about this provider. I made an appointment, and it was postponed twice due to a surgery that was unknown to the scheduler, and then, a surgery that went long. So, I had to be postponed twice. Then, once my surge
Nov 13, 2017
Dr. Marshall was probably one of the best doctors I've ever had. He was very thorough and respectful and took his time with me and explained things just the way I needed,so I would recommend him to anybody and I would go back to him if I needed to. He mad
Oct 4, 2017
Dr. Marshall was the best doctor I've ever visited. Thank you.
Sep 27, 2017
Dr. Marshall seemed to understand the needs, and also, he … he seems to understand what I wanted in a physician and a surgeon, explained the procedure and, you know, gave me choices, and I appreciate that.
Sep 27, 2017
Quality physician and took the time to help me understand and gave me the confidence that he could do the job.
Sep 6, 2017
I am extremely happy with this provider. I have all my questions answered, and, in a timely manner and I'm very extremely happy with him.
Jul 5, 2017
The provider was very professional. He actually did a surgery on me today, and everything went well, and very knowledgeable and very nice.
Jul 4, 2017
Excellent care. He listened carefully and kept my family informed every step of the way.
Jun 20, 2017
Thank you for the Regional Healthcare Logan Utah. I had a great surgery and I'd like to thank Dr. Marshall and the whole staff at the hospital. Thank you for taking care of me.