Gastroenterologist @UCSF | IBD & anal cancer prevention researcher | Founder, UCSF Rainbow IBD Clinic 🏳️🌈🏳️⚧️ | Advocate for LGBTQ health
Joined October 2025
- Tweets 18
- Following 126
- Followers 100
- Likes 37
3 Photos and videos
Pinned Tweet
12 Oct 2025
Back on X after a break — excited to reconnect.
I’m a UCSF gastroenterologist and inflammatory bowel disease specialist focusing on anal cancer prevention, and LGBTQ health equity.
Expect research highlights, clinical perspectives, and advocacy.
5
335
Mar 21
Honored and grateful to receive this award. Excited to help advance cancer prevention efforts for people living with IBD. Thank you @AmCollegeGastro and to my incredible mentors for your guidance, support and belief in this work @UmaMahadevanIBD @ucsfibd
Mar 20
Junior Faculty Development Award:
Justin T. Field, MD
University of California, San Francisco
Prevalence and Determinants of Anal HSIL in Patients With Perianal Crohn’s Disease
3
3
24
2,025
Justin Field retweeted
Jan 26
8/ #Anal Squamous cell or (fistula) mucinous adenoCA
⚠️ RF:
⭕️Perianal Crohn’s
🚬 Smoking
💊 Chronic immunosuppression
🦠 HPV, HIV, MSM
🔍 High-risk pts need thorough perianal exams biopsies. Screening matters
@VictorChedidMD @MTappataMD
2
8
12
756
26 Nov 2025
Counting down to #GUILD2026. Anal dysplasia screening is an important yet often overlooked part of care for many with IBD. Grateful for the opportunity to review the evidence, practical algorithms, and how to screen at the most high-impact and most 𝕗𝕦𝕟 meeting of the year! 🌺
26 Nov 2025
Baby its cold outside...Time to book your tickets for @GuildConference Caribbean (PR in Jan) or Maui (Feb)! Register here --> guildconference.com/2026/
1
2
11
968
Justin Field retweeted
8 Nov 2025
Dr @KendallBeckMD announces the @ucsfhealth @ucsfibd Longevity clinic open for referrals for all older IBD pts in the Bay Area @UCSFGeriatrics
4
13
1,113
Justin Field retweeted
8 Nov 2025
Packed audience @ucsfibd 20th Annual Course! Congrats to @UmaMahadevanIBD @Realcecum for another fabulous program.@UCSFHospitals
5
10
928
27 Oct 2025
Congratulations @KiraNewmanMDPhD - your energy and dedication to achieving health and research equity for all is a true inspiration
27 Oct 2025
The Healio Health Equity Award honors a physician who works to overcome the social determinants of health so all people can receive the GI care they need. We are proud to present this award to @KiraNewmanMDPhD. Congratulations, Dr. Newman! 💚#HealioInnovators
2
6
466
Justin Field retweeted
Nice ✅ lists by @HorstIBDDoc:
1) Tests prior to therapies in #InflammatoryBowelDisease
2) Health maintenance in #IBD
Consider:
💉Vaccines
🧠Mental health
🦀Cancer screening (CRC, skin, cervix, breast)
🦴Bone health
🚭Smoking 🛑
@AmCollegeGastro at #ACGVGSMASGNA
1
33
108
10,775
21 Oct 2025
Are you aware of the new 2024 IANS Anal Cancer Screening Guidelines?Screening rec’d for groups with anal SCC > 17 per 100k p-y. Data suggests perianal Crohn’s carries risk of 20-30 per 100k p-y.
Clinicians: are you screening your patients with perianal CD?
#AnalCancer #IBD #HPV
3
163
14 Oct 2025
🧵 A quick re-introduction and what you can expect from this account: I’m a gastroenterologist @UCSF focused on IBD, anal cancer prevention, and LGBTQ health 🏳️⚧️🏳️🌈
Here’s what drives my work ⬇️
1
4
15
1,613
14 Oct 2025
I founded the Rainbow IBD Clinic @UCSF — a program designed to provide affirming, comprehensive care for LGBTQ patients with IBD.
Clinical care, research, and advocacy go hand in hand. 🌈✨
2
3
13
534
14 Oct 2025
🔸 New research & key studies
🔸 Clinical pearls & patient care insights
🔸 Health equity conversations
If you work in GI, LGBTQ health, or just care about inclusive medicine — follow along and say hi 👋
1
7
165
12 Oct 2025
Honored to have been a part of this incredible weekend learning the skills to power the future of GI ⚡️✨#BESTOFFORWARD @AmerGastroAssn
1
2
12
1,694