A Message From Our Director

Over the past 20 years, the Gastroenterology Fellowship program at UC Davis has developed a strong reputation for the training of outstanding clinical and academic gastroenterologists. The fellowship program is comprised of three or more years of tailored training to the fellows’ career goals. Both clinical and investigative aspects of gastroenterology and hepatology are included in the curriculum. UC Davis has made a long-term commitment to increasing the representation of women and members of minority groups in its fellowship training programs and particularly encourages applications from such individuals.

- Jesse Stondell, M.D.

ACGME Fellowship Program Director

The Division of Gastroenterology and Hepatology is committed to providing trainees an educational experience in a nurturing environment that provides the opportunity to learn the clinical and procedural skills necessary to become a competent physician in the treatment of gastrointestinal diseases. The Division recognizes that each trainee has individual strengths, weaknesses and goals. The Curriculum is developed to provide educational opportunities for all types of learners; encompass the knowledge and skills required of all gastroenterologists; and remain flexible in its structure to allow trainees to pursue advanced knowledge and skills related to their career goals.

Faculty & Attendings

Christopher Bowlus, M.D. - Professor and Chief

Anthony Albanese, M.D. - VA Northern CA Health Care System

Amar Al-Juburi, M.D. - Associate Professor

Eric Chak, M.D., M.P.H - Assistant Professor

Maneesh Dave, M.D., M.P.H - Associate Professor

Sarah Flores, M.D. - VA Northern California Health Care System

Juan Carlos Garcia, M.D. - Professor and Clinical Medical Director

Asha Gupta, M.D. - Assistant Professor

Alex Kuo, M.D. – Assistant Professor

Lien Le, M.D. – Assistant Professor

Randy Lee, M.D. - VA Northern CA Health Care System

Joseph Leung, M.D. - Professor  Emeritus and Chief of Gastroenterology at VA Northern CA Health Care System

Shilpa Lingala, M.D. - VA Northern California Health Care System

Joseph Marsano, M.D. - Assistant Professor

Valentina Medici, M.D. - Associate Professor

Vikrant Rachakonda, M.D. – VA Northern California Health Care System and UC Davis Health Associate Professor

Marmy Shah, M.D. - VA Northern California Health Care System

Homayoun Shojamanesh, M.D. - VA Northern California Health Care System

Jesse Stondell, M.D. - Associate Professor and Fellowship Program Director

Cecilia Terrado, M.D. - Professor

Shiro Urayama, M.D. - Professor and Advanced Endoscopy Fellowship Program Director

Anastasia Waechter, M.D. - Staff Physician

Andrew Yen, M.D. - VA Northern California Health Care System

Teaching Locations

University of California Davis Medical Center
VA Mather Medical Center

Educational Purpose

Providing care to patients with complex and advanced gastrointestinal and liver-related diseases that is beyond the training that is provided by an Internal Medicine residency. Specific knowledge of gastrointestinal and liver diseases, diagnostic methods, treatment modalities and specialized procedural skills are necessary to provide care to these groups of patients. The purpose of this fellowship is to train physicians to become competent in the practice of gastroenterology.

Click here to read more about program's curriculum, including goals and objectives, evaluation methods and tools.

Clinical and basic research projects are part of the training program for fellows on both the Research and Clinical Tracks.  Successful completion of a research project including publication is required for graduation from the fellowship program. Fellows choose their research project, which may include clinical or basic research under the guidance of a faculty mentor. The fellow and mentor conceptualize the project during the first year of fellowship.  Fellows are encouraged to present research results at local research conferences and national meetings, and submit manuscripts for publication.

Many faculty within the division are extramurally funded, including NIH, providing a variety of opportunities for research. In addition, several faculty outside of the Division of Gastroenterology and Hepatology work on related topics and have mentored past fellows.

Research opportunities within the Division include:

Clinical Trials  
Advanced Endoscopy
Alcoholic Liver Disease
Hepatitis C
Inflammatory Bowel Disease
Liver Fibrosis
Primary Biliary Cirrhosis and Primary Sclerosing Cholangitis

Research opportunities outside the Division may include:

GI Malignancies
Intestinal Motility
Health Disparities

Sample General GI/Hepatology Fellow Schedule








​Consult/ Rounds

​Consult/Rounds or

Procedure Clinic

​GI Conference




​Consult/Rounds or

Continuity Clinic

Endoscopy lecture




Sample Rotations By Year


Number of Months

​Year 1

​UC Davis Inpatient Consults

UC Davis Inpatient Hepatology
VA Inpatient Consult





Year 2

​UC Davis Inpatient Consults

UC Davis Inpatient Hepatology
VA Inpatient Consult







​Year 3

Inpatient ERCP service (UC Davis and VA) **

Endoscopic ultrasound/advanced service **

VA Inpatient Consult

UC Davis Inpatient consults







** Can be substituted for IBD, hepatology, motility or other interests as approved by the Division

The Division of Gastroenterology and Hepatology at UC Davis is ACGME approved for 9 fellowship positions, and generally takes 3 first year fellows each academic year. 

  • Applicants should have completed three years of training in Internal Medicine in the United States or Canada by the time they enter the fellowship training program. Applicants choosing the ABIM Research Pathway will also be considered.
  • Applicants must be board certified or eligible in Internal Medicine, and must possess a California Physician's license before the starting date of the fellowship program.
  • Applicants should apply to the UC Davis Gastroenterology Fellowship Program through The Electronic Residency Application Service (ERAS). All positions will be selected using the National Residency Matching Program (NRMP).
  • The program does not currently sponsor J-1 or H-1B visa applicants. 

Required documents for a complete application:

  • ERAS application (all application materials must be received through ERAS)
  • Curriculum Vitae
  • 3 or more letters of recommendation
  • MSPE (Dean's letter)
  • Medical school transcripts
  • USMLE transcripts
  • ECFMG (if applicable)
  • Personal statement

For questions, please contact:

Lindsay Macomber
Division of Gastroenterology and Hepatology
4150 V Street, Suite 3500
Sacramento, CA 95817

Current Fellows

Class of 2022

Runalia Bahar, M.D.

Medical School: University of Pittsburgh School of Medicine

Residency: UC Davis School of Medicine

Stephanie Yan, M.D.

Medical School: Georgetown University School of Medicine

Residency:  UC Davis School of Medicine

Jeffrey Ko, M.D.

Medical School: Saint Louis University School of Medicine

Residency: Cedars-Sinai Medical Center

Class of 2023

Alex Miller, M.D.

Medical School: University of Utah School of Medicine

Residency: Mayo Clinic, Rochester, MN

Cindy Piao, M.D.

Medical School: Boston University School of Medicine

Residency: UC Davis School of Medicine

Shivani Shah, M.D.

Medical School: George Washington University School of Medicine and Health Sciences

Residency: Yale New Haven Hospital

Class of 2024

Bao Sean Nguyen 

Medical School: Keck School of Medicine, Los Angeles

Internal Medicine Residency: University of California Los Angeles

Christine Shieh 

Medical School: David Geffen School of Medicine at UCLA

Internal Medicine Residency: Thomas Jefferson University, Philadelphia, PA

Alex Zhornitskiy 

Medical School: Drexel University College of Medicine, Philadelphia PA

Internal Medicine Residency: University of California, Los Angeles

Class of 2025

Charles Lavender 

Medical School: University of Arkansas for Medical Sciences

Internal Medicine Residency: University of Arkansas Medical Center

Shannon Schroeder 

Medical School: Wake Forest University School of Medicine, Winston-Salem, North Carolina

Internal Medicine Residency: University of California, Davis

Omar Viramontes 

Medical School: David Geffen School of Medicine at UCLA

Internal Medicine Residency: University of California, San Francisco

Class of 2026

Jacqueline Chang 

Medical School: Sidney Kimmel Medical College at Thomas Jefferson University

Internal Medicine Residency: Oregon Health and Science University

Robert Pecha 

Medical School: University of Kentucky College of Medicine

Internal Medicine Residency: Baylor College of Medicine

Yesenia Ramos 

Medical School: University of Washington School of Medicine

Internal Medicine Residency: University of California, Davis

Past Fellows

Class of 2021 Where Are They Now?
Sirisha Grandhe, M.D.  Washington Gastroenterology
Sheeva Johnson, M.D., M.P.H.  Kaiser South Sacramento
Justin Louie, M.D.  Kaiser Modesto
Class of 2020 Where Are They Now?
Abhinav Koul, M.D. UC Davis Advanced Endoscopy Fellowship Program
Alex Kuo, M.D. UC Davis Medical Center
Dana Pan, M.D.  Insite Digestive Health
Class of 2019
Armen Eskandari, M.D. UC San Diego Advanced Fellowship Program
Amir Taefi, M.D. Kaiser South Sacramento
Laura Pestana, D.O. Adventist Health, Ukiah, CA
Class of 2018
Joseph Marsano, MD UC Davis Medical Center
Sital Singh, MD Lodi Memorial Hospital, Lodi, CA
Patrick Koo, MD Fullerton, CA
Class of 2017
Robert Levy, M.D. Kaiser South Sacramento
Victoria Yung, M.D. John Muir Health
Andrew Chao, M.D. Kaiser South Sacramento

Housing & Education Stipend

  • Fellows for 2020-2021 will receive $1,500 education stipend which can be used for educational travel, textbooks, and other similar supplies.

Meal Cards

  • Fellows are provided with a stipend commiserate with call obligations for purchasing meals at the UC Davis Medical Center Pavilion Café and other UC Davis Medical Center café locations.

Recreational Facilities

  • Fellows have access to housestaff recreational facilities at UC Davis Medical Center including well-equipped gym and computer facilities.

Leave Policy

  • Fellows receive four weeks of paid vacation each year. Leaves are scheduled in advance to allow for cancellation of continuity clinics and appropriate coverage.  Additional leaves for illness, family or medical emergencies, maternity/paternity, etc. may be granted with approval as per UC Davis GME policies.

Contact Us

ACGME Fellowship Program Director: Jesse Stondell, M.D.

Associate Program Director: Asha Gupta Cogdill, M.D.

Fellowship Coordinator: Lindsay Macomber

Email: lvmacomber@ucdavis.edu