Current Fellows

First-Year Fellows

Rahaf Baker


Rahaf Baker, MD, MPH 

Hometown: Bradford, UK
Undergraduate: University of California, Irvine
Medical School: University of Washington School of Medicine
Residency: Alameda Health System Internal Medicine Residency

More about Rahaf

Clinical Interests: Lupus, rheumatoid arthritis, myositis, scleroderma, as well as reproductive health in rheumatology
Research Interests: Health services research and big data, disparities in healthcare, and the intersection of AI and rheumatology
Why did you choose UCSF: 1) Three-hospital system and diversity of patient populations 2) Excellent clinical training and teaching opportunities and a strong track record of training academic rheumatologists and physician scientists 3) The diversity of San Francisco and the commitment of the university as a whole to vulnerable populations
Hobbies and/or Fun Facts: Photography, cooking, painting, and interior design


Megan Creasman


Megan Creasman, BA, MA, MD

Hometown: Berkeley, CA
Undergraduate: Stanford

Medical School: UCSF
Residency: NYP-Weill Cornell Internal Medicine

More about Megan

Clinical Interests: Cardiovascular risk in autoinflammatory disease, patient education
Research Interests: Implementation science, health disparities, increasing minority representation in clinical trials
Why did you choose UCSF?: I feel honored to care for and learn from the diverse patient population at all three hospitals. The UCSF Rheumatology faculty are also kind, passionate, and brilliant. I can't imagine a better place to train!
Hobbies: My non-medical energy and sanity is entirely and happily consumed by my toddler, Asher.




John Landefeld, MD, MS

Hometown: Concord, MA
Undergraduate: Harvard

Medical School: UCSF
Residency: UCSF

More about John

Clinical Interests: Rheum/derm, office-based procedures
Research Interests: Delivery systems to increase access to rheumatologic care for underserved communities
Why did you choose UCSF?: I chose UCSF because the faculty and fellows are brilliant, collegial, and clinically curious. This is where I fell in love with rheumatology as a medical student, so am thrilled to be here for fellowship.
Hobbies and/or Fun Facts: Spending time outside with my family, birding, traveling, exploring California both near and far



Appledene Osbourne, MD, MS

Hometown: St. Andrew, Jamaica
Undergraduate: University of Chicago

Medical School: Cleveland Clinic Lerner College of Medicine of Case Western Reserve University
Residency: UC Davis Internal Medicine

More about Appledene

Clinical Interests: Musculoskeletal ultrasonography
Research Interests: Health disparities in rheumatoid arthritis
Why did you choose UCSF?: I chose UCSF for its academic excellence. I am confident that I will be well-trained at the end of the fellowship.
Hobbies and/or Fun Facts: Hiking, traveling, film critic


Second-Year Fellows

Abimola Fadairo-Azinge, MD 


Abimbola Fadairo-Azinge, MBBS, MPH, MBA

Hometown: Lagos, Nigeria
Undergraduate: I
gbinedion University Nigeria 
Medical School: Oba Okunade Sijuade College of Health Sciences, Igbinedion University Nigeria
Residency: Columbia University Affiliated Harlem Hospital Center

More about Abimbola

Clinical Interests: SLE, RA
Research Interests: Improving health care access and delivery with IT, quality improvement, contraceptive use in patients taking biologics
Why did you choose UCSF? I chose UCSF because of the outstanding clinical training, exceptional mentors who would guide my career path, and the diverse patient populations across the three different hospitals. Secondly, I chose UCSF because of the opportunity to train both as a clinical informaticist and rheumatologist.
Hobbies and/or Fun Fact: Spending time with family, traveling, photography. 

Baljeet Rai, MD 


Baljeet Rai, MD 

Hometown: Modesto, CA
Undergraduate: UC Berkeley
Medical School: 
Georgetown University School of Medicine
Residency: LAC+USC Medical Center

More about Baljeet

Clinical Interests: Systemic lupus erythematosus, reproductive health in rheumatology
Research Interests: Health disparities within rheumatology
Why did you choose UCSF?: I chose UCSF for many reasons including the diversity of clinical training across three different hospital sites and the opportunity to work with world-class, yet collegial and supportive, faculty and mentors.
Hobbies and/or Fun Fact: Traveling, yoga, and exploring the endless restaurants, cafes, and hiking trails in the beautiful bay area!

Kristen Mengwasser, MD 


Kristen Mengwasser, MD, PhD 

Hometown: St. Louis, MO
Harvard University
Medical School: Harvard Medical School​​
Residency: Brigham and Women's Hospital

More about Kristen

Clinical Interests: Myositis (including DM, antisynthetase syndrome, IIM, IMNM), vasculitis
Research Interests: Developing technology to facilitate autoantigen discovery, understanding the mechanisms that break peripheral tolerance using high-throughput genetic screening approaches

Why did you choose UCSF?: The diversity of disease seen across the 3-hospital system, immunology research opportunities, delightful group of clinical colleagues!
Hobbies and/or Fun Fact: Spin class, gardening, board games, glamping!

Yun-Han (Hannah) Huang, MD 


Yun-Han (Hannah) Huang, MD, PhD

Hometown: Taoyuan, Taiwan
Massachusetts Institute of Technology
Medical School: Weill Cornell Medicine
Residency: Brigham and Women's Hospital

More about Yun-Han (Hannah)

Clinical Interests: Systemic autoimmune diseases, structure & function  
Research Interests: Cell-cell communication & fate decisions in autoimmunity & cancer
Why did you choose UCSF?: Knowledgeable & supportive clinical & research mentorship, diverse patient population
Hobbies and/or Fun Fact: Dance, traveling, photography

Non-ACGME Fellows



John Huizar, MD 

Hometown: Culver City, CA
Undergraduate School: UC Berkeley
Medical School: UCSF
Residency: UCSF

More about John

Clinical Interests: SLE; autoinflammatory diseases
Research Interests: John is working in the lab of Greg Barton at UC Berkeley to dissect the molecular mechanisms by which the gut microbiota contributes to nucleic acid autoimmunity. 
Why did you choose UCSF?: Deep expertise across a breadth of disease states; excellent fundamental immunology research program; all my colleagues and mentors are kind, generous with their time and excited to be at work each day!
What have been your favorite aspects (or experiences) of the program?: My co-Fellows are kind, inspiring, fun to be around and whip-smart! The faculty also create a very positive learning climate.
Hobbies and/or Fun Fact: Toddler wrangling; infrequently finding esoteric dried chiles for use in mole

Rachael Stovall, MD


Charlotte Hurabielle, MD, PhD

Hometown: Paris, France
Undergraduate School: 
Medical School: Faculté de médecine Paris Descartes
Residency: UCSF

More about Charlotte

Clinical Interests: I am primarily interested in the overlap between rheum/derm diseases and I enjoy learning more every day on connective tissue diseases and vasculitis.
Research Interests: For my postdoc, I am working in Jimmie Ye's lab on multiplexed single cell multiomics of circulating immune cells in SLE, to study the epigenome, transcriptome and epitopes, both during flares and during times of lesser disease activity and remission. This will help to identify pathways activated during flares of the disease as well as constitutionally activated pathways that predate flares. I will also work on PhIP seq and yeast display samples from lupus patients to identify autoantibodies that may be associated or protect from flares. 
Why did you choose UCSF?: I chose UCSF for many reasons: excellent clinical training with world-class clinical educators, diversity of patient populations through the 3 hospital systems, outstanding research with collaborative culture, and overall friendliness of the program leadership.
Hobbies and/or Fun Fact: I love outdoor, from walking around in the parks, biking, or hiking. I also enjoy trying different coffeeshops and eating the best croissant I have found in the US.