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Hailyn Nielsen



About me

Pronouns: She | Her | Hers

Dr. Hailyn Nielsen is a rheumatologist who cares for patients with autoimmune, autoinflammatory and arthritic conditions. When not working with patients, she is working in the lab to better understand how the immune system functions.

Nielsen earned her medical degree and a doctorate in molecular microbiology and microbial pathogenesis at Washington University School of Medicine in St. Louis. She completed a residency in internal medicine and a fellowship in rheumatology at UCSF.

  • Education

    Washington University in St. Louis, MD, 2015

  • Residencies

    UCSF, Internal Medicine, 2018

  • Fellowships

    UCSF, Rheumatology, 2022

  • Academic Title

    Assistant Professor

Where I see patients (1)

    My reviews


    Overall Experience
    38 Ratings
    About our process
    Jun 04, 2023
    Doctor showed care and thorough all the way
    May 19, 2023
    I just love u.c.s.f. the staff and dr. Nielsen...
    Apr 14, 2023
    I already have recommended to family and friends.
    Dec 02, 2022
    She's a great doctor!
    Oct 30, 2022
    Dr. Nielsen is the best provider I could imagine.
    Jan 21, 2022
    Wonderful care.
    Sep 13, 2021
    Dr. Nielsen is the most knowledgeable kindest and most concerned practitioner I have worked with. Her communications skills and patience are unsurpassed and her knowledge of the field and related fields astounds me.