Skip to main content
Lukejohn Day, MD, Gastroenterology, San Francisco, CA

LukejohnWelchDayMD

Gastroenterology • San Francisco, CA

Assistant Professor, Medicine, UCSF School of Medicine

Join to view full profile

Dr. Day is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
  • Connect with colleagues in the same hospital or clinic.
  • Read the latest clinical news, personalized to your specialty.

See Dr. Day's full profile

Already have an account?

  • Office

    505 Parnassus Ave
    San Francisco, CA 94143
    Phone+1 415-377-2176

Education & Training

  • University of California (San Francisco)
    University of California (San Francisco)Fellowship, Gastroenterology, 2007 - 2010
  • University of California (San Francisco)
    University of California (San Francisco)Residency, Internal Medicine, 2004 - 2007
  • Stanford University School of Medicine
    Stanford University School of MedicineClass of 2004

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 2005 - 2025
  • FL State Medical License
    FL State Medical License 2012 - 2021
  • American Board of Internal Medicine Gastroenterology

Publications & Presentations

PubMed

Authored Content

  • Infection Control During GI EndoscopyMarch 2018
  • Infection Control During GI EndoscopyMarch 2018

Press Mentions

  • Stanford Experts Document Nonsexual Monkeypox Transmission
    Stanford Experts Document Nonsexual Monkeypox TransmissionAugust 19th, 2022
  • California Governor Declares Monkeypox State of Emergency
    California Governor Declares Monkeypox State of EmergencyAugust 1st, 2022
  • California Governor Declares Monkeypox State of Emergency
    California Governor Declares Monkeypox State of EmergencyAugust 1st, 2022
  • Join now to see all

Dr. Lukejohn Day, Dr. Lukejohn Day, MD, Dr. L Day, Dr. Lukejohn Welch Day