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Mark Lewis, MD, FASCO Profile
Mark Lewis, MD, FASCO

@marklewismd

Followers
96K
Following
89K
Media
13K
Statuses
51K

Director, GI Oncology, @Intermountain. Interests: neuroendocrine tumors, cancer syndromes, empathy (even had a Whipple myself). Tweets my own.

Murray, UT
Joined September 2012
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@marklewismd
Mark Lewis, MD, FASCO
5 years
A patient who never smoked, never drank, and was fastidious about his diet died of cancer at 49 That patient was my father He went to his grave not knowing he actually carried a genetic mutation that caused his fatal tumor Virtue doesn't necessarily guarantee health RIP Dad
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@marklewismd
Mark Lewis, MD, FASCO
17 hours
Grateful to have spoken to Kristin Flanary ⁦@LGlaucomflecken⁩ about “co-survivors”: the often-unheard partners who support patients & who are invaluable therapeutic allies but have their own value & stories to share #NationalCaregiverAwarenessMonth
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podcasts.apple.com
Podcast Episode · Your Stories: Conquering Cancer · 11/26/2025 · 26m
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@marklewismd
Mark Lewis, MD, FASCO
2 days
circus: disavowed monkeys: see above
@rllydu
mau
3 days
my ducks: in a row my elephant: addressed my eggs: several baskets my bigger fish: fried
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@marklewismd
Mark Lewis, MD, FASCO
3 days
It’s from the day in 2017 I had the Whipple procedure because of a malignant tumor in the head of my pancreas My wonderful surgeons agreed to having the whole operation live-tweeted (archive link below) Monsters are scarier in the dark so shine a light https://t.co/Jlp1Ddd7N2
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@marklewismd
Mark Lewis, MD, FASCO
3 days
* patient has low potassium * I prescribe potassium * pharmacy calls and says I need prior authorization for said potassium I was unaware that Big Electrolyte needed to be this tightly regulated but apparently they are reliably profitable
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@marklewismd
Mark Lewis, MD, FASCO
4 days
When you promised you’d go out but you just got your eyes dilated
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@NewYorker
The New Yorker
5 days
Tatiana Schlossberg, the daughter of Caroline Kennedy, had just given birth when she was diagnosed with a rare form of leukemia. She writes about her fear of adding another tragedy to her family’s life. https://t.co/GR1vSZYmsW
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@marklewismd
Mark Lewis, MD, FASCO
5 days
“Babe, you seem distant, what are you thinking about?”
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@marklewismd
Mark Lewis, MD, FASCO
5 days
/s (for any of my patients or colleagues reading this, let me reassure you that I am very happily employed @intermountain :)
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@marklewismd
Mark Lewis, MD, FASCO
5 days
In Pittsburgh for a conference Heard this hospital has very manageable patient volumes with ample staffing and that its employees enjoy wonderful work-life balance 🤞 they’re hiring
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@marklewismd
Mark Lewis, MD, FASCO
6 days
An aquarium, apparently 🤷🏻‍♂️
@drkeithsiau
Keith Siau
6 days
What’s the secret to being a good doctor?
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@marklewismd
Mark Lewis, MD, FASCO
7 days
Cancer killed my father and now it must prepare to die
@SokeyeA
Afolabi Sokeye 🧱
20 days
What’s the lore behind choosing your career path ?
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@marklewismd
Mark Lewis, MD, FASCO
8 days
IgM:
@whhygee
whygee
10 days
Who decided that candles go on top?
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@marklewismd
Mark Lewis, MD, FASCO
8 days
Thanks to Senator John Johnson @johnforutah for sharing his platform to discuss how we can shorten “brain to vein” time in cancer care delivery When Science Isn’t the Problem: Dr. Mark Lewis on Prior Authorization, Precision Medicine, & Saving Lives
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politicit.com
Dr. Mark Lewis, a nationally respected oncologist practicing in Utah, explains why the greatest obstacles in cancer care today aren’t scientific—they’re systemic. From early-life antibiotic exposure...
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@Larvol
LARVOL
8 days
November is Gastric Cancer Awareness Month. Here's a look at Checkpoint Inhibitors in the Gastric Cancer Treatment Landscape. Adapted from Yang Wang, and Geoffrey Chong: https://t.co/796KfVO7PU #LARVOL #CancerResearch #CancerData #Oncology #OncologyInsights #ClinicalTrials
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@marklewismd
Mark Lewis, MD, FASCO
9 days
New bio just dropped
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@marklewismd
Mark Lewis, MD, FASCO
10 days
When p=.051 but you still publish
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@marklewismd
Mark Lewis, MD, FASCO
10 days
Incredible shot of the alveolar capillary
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@marklewismd
Mark Lewis, MD, FASCO
12 days
DESK GOALS
@fermatslibrary
Fermat's Library
22 days
Andrew Wiles on the morning he discovered how to fix his proof of Fermat's Last Theorem
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