
Gastroenterologist @UCSF | IBD & anal cancer prevention researcher | Founder, UCSF Rainbow IBD Clinic 🏳️🌈🏳️⚧️ | Advocate for LGBTQ+ health
San Francisco, CA
Joined October 2025
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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.
Justin Field retweeted
Congratulations to our four #ACG2026🌈#RIG Travel Award recipients!
Meet the ⭐️ researchers helping advance LGBTQ+ digestive health research.
Join us in celebrating their work! 🧵 #ACG2026 #RainbowsInGastro
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Justin Field retweeted
Colitis and Crohn's Disease Center presents: Updates in IBD November 6-8, 26 @stregishotels San Francisco. @UCSF @bruce_sands1 @PDulaiMD @drdawnbeaulieu @RishikaChughMD @priyakathpalia @brondfield Register here: updatesibdcme.ucsf.edu/conte…
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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
Justin Field retweeted
Replying to @DaniyalRaza92 @MondayNightIBD @DrJFeuerstein @AdamFayeMD @HolmerMd @JHashashMD @DrJordanAxelrad @kehutchins77 @YeseniaGreeff @IBDBen @GCalderonMD @ReezwanaCMD @Realcecum @SophieBalzoraMD @ptandonGI @Y_ECCO_IBD @IBD_FloMD @MN_GIMD @IBDMD @tinahamd @ibdgijami @FarrayeIBD @AGA_Gastro @AasmaShaukatMD @DrDavidLarson @UGrewalMD @SultanShazi @GloverQuarshie @Adel_Hajj_Ali @gnioannou @Gut_BMJ @DrSamirAShah1 @SunandaKaneMD @keljurdi @HamdehShadi @PriankaGajula @DouglasAdlerMD @HarshitKharaMD @CiorbaGI @AGA_CGH @TabibianMDPhD @clbowlus @CLD_Learning @keri_lunsford @rachnatshroff @BilalMohammadMD @KiwanGIDoc @DrMarinaKimP
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
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! 🌺
Baby its cold outside...Time to book your tickets for @GuildConference Caribbean (PR in Jan) or Maui (Feb)! Register here --> guildconference.com/2026/
Justin Field retweeted
Dr @KendallBeckMD announces the @ucsfhealth @ucsfibd Longevity clinic open for referrals for all older IBD pts in the Bay Area @UCSFGeriatrics
Justin Field retweeted
Packed audience @ucsfibd 20th Annual Course! Congrats to @UmaMahadevanIBD @Realcecum for another fabulous program.@UCSFHospitals
Congratulations @KiraNewmanMDPhD - your energy and dedication to achieving health and research equity for all is a true inspiration
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
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
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
🧵 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 ⬇️
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. 🌈✨
Honored to have been a part of this incredible weekend learning the skills to power the future of GI ⚡️✨#BESTOFFORWARD @AmerGastroAssn





















