John Erikson Yap
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John Erikson Yap, MD, MBA

Languages spoken: English, Filipino

  • Dr. John Erikson Yap, MD, MBA, is an Associate Clinical Professor at the University of Utah School of Medicine in the Division of Gastroenterology, Hepatology, and Nutrition. With a passion for clinical excellence and medical innovation, Dr. Yap manages a wide range of gastrointestinal (GI) disorders, from common to complex cases. His expertise includes advanced luminal interventional procedures such as tissue ablations, complex polypectomies, feeding tube placements, and endoscopic suturing, employing cutting-edge techniques to enhance patient outcomes.

    Dr. Yap graduated with honors from the University of Santo Tomas in Manila, Philippines, and completed a highly regarded internship at the University of the Philippines, where he was recognized as one of the top interns in his cohort. He then completed his Internal Medicine residency at Cook County Hospital in Chicago, where he served an additional year as Chief Medical Resident, followed by a Gastroenterology Fellowship at the same institution. He later joined the faculty at the Medical College of Georgia, serving as Associate Program Director for the Gastroenterology fellowship. In 2022, the American College of Physicians' Georgia Chapter recognized him as the Outstanding Early Career Physician, an honor reflecting his leadership and commitment to academic medicine.

    In addition to his clinical and academic roles, Dr. Yap holds an MBA and is currently pursuing an MHA to enhance his expertise in healthcare leadership and advocacy. He is board-certified in internal medicine, gastroenterology, and obesity medicine, and actively serves on committees for several professional associations. Dr. Yap’s career reflects his steadfast commitment to clinical excellence, medical education, and leadership in healthcare.

    Board Certification

    American Board of Internal Medicine (Internal Medicine)
    American Board of Internal Medicine (Sub: Gastroenterology)
    American Board of Obesity Medicine

  • Dr. John Erikson Yap, MD, MBA, is an Associate Clinical Professor at the University of Utah School of Medicine in the Division of Gastroenterology, Hepatology, and Nutrition. With a passion for clinical excellence and medical innovation, Dr. Yap manages a wide range of gastrointestinal (GI) disorders, from common to complex cases. His expertise includes advanced luminal interventional procedures such as tissue ablations, complex polypectomies, feeding tube placements, and endoscopic suturing, employing cutting-edge techniques to enhance patient outcomes.

    Dr. Yap graduated with honors from the University of Santo Tomas in Manila, Philippines, and completed a highly regarded internship at the University of the Philippines, where he was recognized as one of the top interns in his cohort. He then completed his Internal Medicine residency at Cook County Hospital in Chicago, where he served an additional year as Chief Medical Resident, followed by a Gastroenterology Fellowship at the same institution. He later joined the faculty at the Medical College of Georgia, serving as Associate Program Director for the Gastroenterology fellowship. In 2022, the American College of Physicians' Georgia Chapter recognized him as the Outstanding Early Career Physician, an honor reflecting his leadership and commitment to academic medicine.

    In addition to his clinical and academic roles, Dr. Yap holds an MBA and is currently pursuing an MHA to enhance his expertise in healthcare leadership and advocacy. He is board-certified in internal medicine, gastroenterology, and obesity medicine, and actively serves on committees for several professional associations. Dr. Yap’s career reflects his steadfast commitment to clinical excellence, medical education, and leadership in healthcare.

    Board Certification and Academic Information

    Academic Departments Internal Medicine -Primary
    Academic Divisions Gastroenterology
    Board Certification
    American Board of Internal Medicine (Internal Medicine)
    American Board of Internal Medicine (Sub: Gastroenterology)
    American Board of Obesity Medicine

    Education history

    Graduate Training Business Administration - Augusta University James M. Hull College of Business M.B.A.
    Gastroenterology - John H. Stroger, Jr. Hospital of Cook County, Cook County Health and Hospital System Fellow
    Chief Resident Internal Medicine - John H. Stroger, Jr. Hospital of Cook County, Cook County Health and Hospital System Chief Resident
    Internal Medicine - John H. Stroger, Jr. Hospital of Cook County, Cook County Health and Hospital System Resident
    Internship Philippine General Hospital, University of the Philippines College of Medicine Intern
    Medicine - University of Santo Tomas Faculty of Medicine and Surgery M.D.
    Undergraduate Biology - De La Salle University B.S.

    Selected Publications

    Journal Article

    1. Nageswaran GA, Chandrasekar VT, Ghleilib I, Yap JE (2023). Eosinophilic enteritis in a case of cystic fibrosis: an elusive diagnosis with an elementary cure. BMJ Case Rep, 16(12). (Read full article)
    2. Adu-Gyamfi KO, Kudaravalli P, Yap JEL (2022). Polycystic Liver and Kidney Disease. Clin Gastroenterol Hepatol, 20(11), A33. (Read full article)
    3. Hudgi A, Cartelle AL, Ahmed A, Alkaddour A, Palacio C, Vega KJ, Yap JEL (2022). Tokyo Guidelines (TG18) for Acute Cholangitis Provide Improved Specificity and Accuracy Compared to Fellow Assessment. Cureus, 14(7), e27527. (Read full article)
    4. Azam M, Hudgi A, Uy PP, Makhija J, Yap JEL (2022). Safety of endoscopy in patients undergoing treatments with antiangiogenic agents: A 5-year retrospective review. World J Gastrointest Endosc, 14(7), 416-423. (Read full article)
    5. Prez Moux RL, Mude P, Doshi S, Madwani K, Barrett A, Yap JEL (2022). Human Intestinal Spirochetosis: A Rare Case of Intermittent Bloating and Hematochezia. Cureus, 14(6), e25756. (Read full article)
    6. Chan JT, Mude PJ, Canfield W, Makhija J, Yap JEL (2022). Severe Hypertriglyceridemia-Induced Necrotizing Pancreatitis Associated With Ketogenic Diet in a Well-Controlled Patient With Type 2 Diabetes Mellitus. Cureus, 14(1), e20879. (Read full article)
    7. Liyen Cartelle A, Nguyen A, Desai PM, Kotwal V, Makhija J, Yu J, Yap JEL (2021). Safety of upper endoscopy in patients with active cocaine use. World J Gastrointest Endosc, 13(10), 510-517. (Read full article)
    8. Hudgi AR, Peng H, Sridhar S, Yap JE (2021). Iatrogenic biloma: a rare and delayed complication of a life-saving transarterial hepatic embolisation. BMJ Case Rep, 14(8). (Read full article)
    9. Stemboroski L, Samuel J, Alkaddour A, Agresti N, Gupta E, Palacio C, Munoz JC, Deutch A, Yap JEL, Vega KJ (2021). Characteristics of Serrated Adenomas in Non-Hispanic Whites and African Americans Undergoing Screening Colonoscopy. Cureus, 13(7), e16200. (Read full article)
    10. Abraham M, Doshi S, Asfari MM, Yap JEL, Bowers HG (2021). Isolated Gastric Variceal Hemorrhage Secondary to Idiopathic Sinistral Portal Hypertension. Cureus, 13(7), e16165. (Read full article)
    11. Hudgi AR, Azam M, Masood M, Arshad HMS, Yap JEL (2021). The GIST of It: A Rare Presentation of Neurofibromatosis Type I. Cureus, 13(6), e16034. (Read full article)
    12. Masood M, Uy P, Yap JE (2021). When hiccups mean something more than just a nuisance: A rare presentation of pyogenic liver abscess. JGH Open, 5(7), 837-838. (Read full article)
    13. Perry IE, Azam MU, Yap JE (2021). Carcinoma Camouflage. Gastroenterology, 160(6), 1940-1942. (Read full article)
    14. Chiruvella V, Cheema A, Arshad HMS, Chan JT, Yap JEL (2021). Sucrase-Isomaltase Deficiency Causing Persistent Bloating and Diarrhea in an Adult Female. Cureus, 13(4), e14349. (Read full article)
    15. Coles M, Uy P, Madray V, Yap JE, Sridhar S (2021). The Off-Label Use of a Lumen-Apposing Metal Stent (LAMS) for a Benign Colon Anastomotic Stricture Causing Recurrent Bowel Obstruction in a Patient with Keloids. Case Rep Gastrointest Med, 2021, 5595518. (Read full article)
    16. Song H, Tetangco E, Ton L, Barrett A, Yap JEL (2021). Beyond Squamous Cell Carcinoma: Basaloid Squamous Cell Carcinoma of the Esophagus. Cureus, 13(1), e12619. (Read full article)
    17. Liyen Cartelle A, Uy PP, Koehler TE, Yap JEL (2020). Persistent Helicobacter pylori Infection: An Insight to the Limitations of Current Clinical Practice. Cureus, 12(12), e12309. (Read full article)
    18. Liyen Cartelle A, Uy PP, Yap JEL (2020). Giant Colonic Lipoma Presenting as Intermittent Colonic Obstruction With Hematochezia. Cureus, 12(11), e11434. (Read full article)
    19. Liyen Cartelle A, Uy PP, Yap JEL (2020). Acute Gastric Hemorrhage due to Gastric Cancer Eroding Into a Splenic Artery Pseudoaneurysm: Two Dangerously Rare Etiologies of Upper Gastrointestinal Bleeding. Cureus, 12(9), e10685. (Read full article)
    20. Song H, Tetangco E, Martin E, Willhite D, Yap JEL (2020). Serrated Polyposis Syndrome: Increasing Awareness and Importance. Cureus, 12(7), e9198. (Read full article)
    21. Yap JE, Jaiswal P, Ton L, Szynkarek R, Attar BM, Gandhi S (2018). Successful treatment of chronic hepatitis C infection with crushed elbasvir/grazoprevir administered via a percutaneous endoscopic gastrostomy tube. J Clin Pharm Ther, 43(5), 730-732. (Read full article)
    22. Jaiswal P, Yap JE, Attar BM, Wang Y, Kotwal V (2018). Gastrointestinal: Tracheoesophageal fistula secondary to pressure necrosis from tracheostomy tube balloon cuff. J Gastroenterol Hepatol, 33(3), 561. (Read full article)
    23. Jaiswal P, Attar BM, Yap JE, Devani K, Jaiswal R, Wang Y, Szynkarek R, Patel D, Demetria M (2017). Acute liver failure with amiodarone infusion: A case report and systematic review. J Clin Pharm Ther, 43(1), 129-133. (Read full article)
    24. Wang Y, Attar BM, Hinami K, Jaiswal P, Yap JE, Jaiswal R, Devani K, Simons-Linares CR, Demetria MV (2017). Concurrent Diabetic Ketoacidosis in Hypertriglyceridemia-Induced Pancreatitis: How Does It Affect the Clinical Course and Severity Scores? Pancreas, 46(10), 1336-1340. (Read full article)
    25. Jaiswal P, Yap JE, Attar BM, Wang Y, Devani K, Jaiswal R, Basu A, Mishra S (2017). Massive Asymptomatic Extrahepatic Portal Vein Aneurysm. Am J Med, 130(9), e383-e386. (Read full article)
    26. Villablanca P, Mohananey D, Meier G, Yap JE, Chouksey S, Abegunde AT (2015). Salmonella Berta myocarditis: Case report and systematic review of non-typhoid Salmonella myocarditis. World J Cardiol, 7(12), 931-7. (Read full article)

    Review

    1. Shahsavari D, Kudaravalli P, Yap JEL, Vega KJ (2022). Expanding beyond endoscopy: A review of non-invasive modalities in Barrett's esophagus screening and surveillance. [Review]. World J Gastroenterol, 28(32), 4516-4526. (Read full article)
    2. Perry IE, Craig E, Cheema A, Yap JE (2021). Gastrointestinal: Endoscopic suture removal resolves chest pain after esophagectomy. [Review]. J Gastroenterol Hepatol, 36(12), 3257. (Read full article)

    Letter

    1. Nigatu A, Yap JE, Lee Chuy K, Go B, Doukky R (2019). Bleeding Risk of Transesophageal Echocardiography in Patients With Esophageal Varices. [Letter to the editor]. J Am Soc Echocardiogr, 32(5), 674-676.e2. (Read full article)
    2. Jaiswal P, Attar BM, Yap JE, Wang Y, Mishra S, Gandhi S (2017). The Reply. [Letter to the editor]. Am J Med, 131(3), e121-e122. (Read full article)