Dr. Horizon is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Connect with other colleagues in the same hospital or clinic
- Search all U.S. specialist profiles and refer a patient
- Read the latest clinical news and earn CME/CEU credits
Office
8640 W 3rd St
#300
Los Angeles, CA 90048Phone+1 310-659-7878Fax+1 310-659-7117- Is this information wrong?
Education & Training
- Cedars-Sinai Medical CenterFellowship, Rheumatology, 2001 - 2003
- UCLA David Geffen School of Medicine/UCLA Medical CenterResidency, Internal Medicine, 1998 - 2001
- University of California San Diego School of MedicineClass of 1998
Certifications & Licensure
- CA State Medical License 1999 - 2025
Awards, Honors, & Recognition
- Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2011
- Super Doctor SuperDoctors.com
- Top MD Consumers Checkbook
- Join now to see all
Publications & Presentations
PubMed
- 20 citationsThe T-Cell Response to SARS-CoV-2 Vaccination in Inflammatory Bowel Disease is Augmented with Anti-TNF Therapy.Dalin Li, Alexander Xu, Emebet Mengesha, Rebecca Elyanow, Rachel M Gittelman, Heidi Chapman, John C Prostko, Edwin C Frias, James L Stewart, Valeriya Pozdnyakova, Phil...> ;Inflammatory Bowel Diseases. 2022 Jul 1
- 7 citationsDifferences in SARS-CoV-2 Vaccine Response Dynamics Between Class-I- and Class-II-Specific T-Cell Receptors in Inflammatory Bowel Disease.Alexander M Xu, Dalin Li, Joseph E Ebinger, Emebet Mengesha, Rebecca Elyanow, Rachel M Gittelman, Heidi Chapman, Sandy Joung, Gregory J Botwin, Valeriya Pozdnyakova, P...> ;Frontiers in Immunology. 2022 Jan 1
- 12 citationsThe T-cell clonal response to SARS-CoV-2 vaccination in inflammatory bowel disease patients is augmented by anti-TNF therapy and often deficient in antibody-responders.Dalin Li, Alexander Xu, Emebet Mengesha, Rebecca Elyanow, Rachel M Gittelman, Heidi Chapman, John C Prostko, Edwin C Frias, James L Stewart, Valeriya Pozdnyakova, Phil...> ;Medrxiv. 2021 Dec 8
- Join now to see all
Professional Memberships
- Fellow
Hospital Affiliations
- Cedars-Sinai Medical CenterLos Angeles, California
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence: