Pediatric Gastroenterology, Hepatology, and Nutrition Current Fellows and Alumni

1st Year Fellows

  • Mahad Alvi, MBBS

    1st Year Fellow
    Pediatric Gastroenterology, Hepatology, and Nutrition

    Residency: Southern Illinois University School of Medicine (Springfield, IL)
    Medical School: Fatima Memorial Hospital College of Medicine and Dentistry (Lahore, Pakistan)

  • Shivani Patel, DO

    1st Year Fellow
    Pediatric Gastroenterology, Hepatology, and Nutrition

    Residency: Louisiana State University Health Sciences Center (New Orleans, LA)
    Medical School: Philadelphia College of Osteopathic Medicine (Suwanee, GA)
    Undergraduate: University of Tennessee (Knoxville, TN)

  • Zil Shah, DO

    1st Year Fellow
    Pediatric Gastroenterology, Hepatology, and Nutrition

    Residency: Tulane University (New Orleans, LA)
    Medical School: Edward Via College of Osteopathic Medicine (Spartanburg, SC)
    Undergraduate: University of South Carolina (Columbia, SC)

2nd Year Fellows

  • Seifein Salib, MBBCh

    2nd Year Fellow
    Pediatric Gastroenterology, Hepatology, and Nutrition

    Residency: University of Florida/Studer Family Children's Hospital (Pensacola, FL)
    Medical School: Alexandria University Faculty of Medicine (Alexandria, Egypt)

  • Thomas Strobel, MD

    2nd Year Fellow
    Combined Gastroenterology (Internal Medicine-Pediatrics)

    Residency: Internal Medicine/Pediatrics - Vanderbilt University Medical Center (Nashville, TN)
    Medical School: Indiana University School of Medicine (Evansville, IN)
    Undergraduate: Indiana University (Bloomington, IN)

3rd Year Fellows

  • Melissa Castro Rivadeneira, MD

    3rd Year Fellow
    Pediatric Gastroenterology, Hepatology, and Nutrition

    Residency: Nicklaus Children's Hospital (Miami, FL)
    Medical School: Universidad Científica del Sur Facultad de Medicina Humana (Lima, Peru)

  • Kacie Denton, MD, MPH

    3rd Year Fellow
    Pediatric Gastroenterology, Hepatology, and Nutrition

    Chief Resident: East Tennessee State University (Johnson City, TN)
    Master of Public Health: East Tennessee State University (Johnson City, TN)
    Medical School: East Tennessee State University Quillen College of Medicine (Johnson City, TN)
    Undergraduate: Carson-Newman University (Jefferson City, TN)

Pediatric Gastroenterology, Hepatology, and Nutrition Fellowship Alumni (2021-2025)

2025

  • Derek Armstrong, MD: Assistant Professor of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition; Duke University Medical Center, Durham, NC
  • Nikita Lalchandani Day, MBBS: Assistant Professor of Pediatrics, Division of Gastroenterology; Norton Children's Hospital/University of Louisville School of Medicine, Louisville, KY
  • Catherine Marchetta, MD: Pediatric Gastroenterologist

2024

  • Jordan Busing, MD: Assistant Professor of Pediatrics, D. Brent Polk Division of Pediatric Gastroenterology, Hepatology, and Nutrition; Vanderbilt University Medical Center

2023

  • Matthew Buendia, MD: Instructor in Pediatrics, D. Brent Polk Division of Pediatric Gastroenterology, Hepatology, and Nutrition; Vanderbilt University Medical Center
  • Derica Sams, MD: Pediatric Gastroenterologist, Pediatric Digestive Health and Wellness, Duluth, GA

2022

  • Katherine Black, MD, MPH: Assistant Professor of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition; Emory University School of Medicine, Atlanta, GA
  • Lauren Klein, MD: Instructor in Pediatrics, D. Brent Polk Division of Pediatric Gastroenterology, Hepatology, and Nutrition; Vanderbilt University Medical Center

2021

  • Rachel Bernard, DO, MS: Pediatric Gastroenterologist, Ochsner Hospital for Children Pediatric Gastroenterology, Hepatology and Nutrition; Baton Rouge, LA
  • Conrad B. Cox, MD: Pediatric Gastroenterologist, GI for Kids & East Tennessee Children’s Hospital, Knoxville, TN