About Dr. Marv


Dr. Marv knows how it is. A few years ago Dr. Marv was overweight, feeling tired, low on energy, and had metabolic syndrome. He was a caring doctor who did the best he could for his patients but knew that something was missing. He knew that there had to be something else to health, since he himself seemed to be missing that key ingredient. After a lot of thought, he decided to enroll in the premier Integrative Medicine Fellowship through the Arizona Center for Integrative Medicine, founded by pioneer Dr. Andrew Weil. This was a life changing event. Dr. Marv became very passionate about wellness, health, longevity, and optimization of health. He begun following an anti-inflammatory diet and begun implementing lifestyle changes into his own regular routine. In just three months, he lost 45 pounds! That was over a year ago and Dr. Marv is now a totally different person than he was before. He is ever more passionate about wellness and helping people lose weight, feel well, feel energetic again, and gain control over their lives!

Dr. Marv is the first physician in California to be Board Certified in Internal Medicine and Gastroenterology in addition to being a Diplomate of the American Board of Integrative Medicine. He is currently only one of two Integrative Gastroenterologists in the United States to carry all three of these endorsements! 

Dr. Marv is able to utilize his knowledge and understanding of science, medicine, and the digestive tract and help his patients decode their personal health blueprint using cutting edge technologies such as microbiome sequencing, genomics, advanced cardiac lab testing, food and chemical sensitivity testing, among many others! He wants to help people regain control over their lives, get rid of the brain fog, and be mindful, nutrition oriented beings who are resilient and full of energy!


Dr. Marvin Singh (Dr. Marv) is currently a voluntary Assistant Clinical Professor in the Department of Family Medicine and Public Health at the University of California, San Diego. He is in private practice with his colleagues at Coastal Gastroenterology. Prior to coming to San Diego, he was a Clinical Assistant Professor of Medicine at UCLA. He has also been an Assistant Professor of Medicine and Associate Director at Johns Hopkins University. Dr. Marv has dedicated his life to helping people optimize their digestive health and overall wellbeing and longevity. He has completed formal training in Integrative Medicine at the Arizona Center for Integrative Medicine, which was founded by the pioneer, Dr. Andrew Weil. He is Board Certified in both Internal Medicine and Gastroenterology, and he is a Diplomate of the American Board of Integrative Medicine. Using his training in Internal Medicine and Digestive Diseases together with his knowledge of Integrative Medicine, he is able to approach his patients from a multi-faceted viewpoint and offer them treatment plans that help them from a global perspective, focusing on whole body health. He is a member of many different medical societies, including the American Academy of Anti-Aging Medicine and the American College of Lifestyle Medicine; and he is actively involved in the American Gastroenterological Society. He has written several book chapters and articles and is a co-editor of the textbook of Integrative Gastroenterology, 2nd edition. 

Dr. Marv lives in the greater San Diego area with his loving wife and two children.


  • Integrative Medicine: Arizona Center for Integrative Medicine, Tuscon, AZ
  • Gastroenterology/Hepatology: Scripps Clinic, La Jolla, CA
  • Internal Medicine: University of Michigan, Ann Arbor, MI
  • Medical School (MD): Medical College of Virginia at Virginia Commonwealth University, Richmond, VA
  • Undergraduate (BS in Biology): George Mason University, Fairfax, VA













Mullin G, Singh M, Parian A, editors. Integrative Gastroenterology, 2nd edition. Oxford University Press. 2018.

Singh M. Lifestyle Medicine. In: Mullin G, Singh M, Parian A, editors. Integrative Gastroenterology Second Edition. Oxford University Press. 2018.

Singh M, Mullin G. Diet and Environmental Chemicals and the Gut Microbiome. In: Vom Saal F, Cohen A, editors. Integrative Environmental Medicine. Oxford University Press. 2017.

Singh, M. “Colon Cancer Prevention: It Starts with You.” Martin Health System For Your Health, Spring 2015; page 7. Singh, M. “To eat or not to eat, that is the question.” Guest speaker: Robert Morgade Library, Stuart, Florida. November 17, 2014.

Singh M, Pockros P. Hematologic and Oncologic Diseases and the Liver. In: Gitlin N, Hu K-Q, editors. Clinics in Liver Disease: Hepatobiliary Manifestations of the Diseases Involving Other Organs and Systems. Clin Liver Dis. 2011 Feb;15(1):69-87.

Singh M, Coyle W. Using endoscopic ultrasound to confirm an uncommon condition. Gastroenterology 2010;138(7):e3-e4.

Singh M, Mathew T, Reidel W, Coyle W. Management of Choledochoceles: A Case Series (Abstract 644). Am J Gastroenterol 2009 Oct;104(Suppl 3):S240. Poster Presentation ACG October 26, 2009, San Diego, CA.

Singh M, Singh E, Miller E, Strum WB, Coyle W. Colorectal Cancer Screening in Women with Endometrial Cancer: Are We Following the Guidelines? J Gastrointest Cancer, June 2012, Volume 43, Issue 2, pp 190-195. Also: Abstract T2033, Gastroenterology 2009 May;136(No. 5, Suppl 1):A-624. Poster presentation DDW June 2, 2009, Chicago, IL. Oral Presentation, Grand Rounds, Scripps Clinic, La Jolla, CA: Gittes Research Award, June 23, 2010.

Singh M, Saini S, Fisher L, Takami M. Negative Serologic Testing for Crohn’s Disease is Highly Predictive of Absence of Small Intestinal Inflammation on Capsule Endoscopy: Results from a Single Academic Center (Abstract 1030). Gastroenterology 2007 Apr;132(No.4, Suppl 1):157.  Oral presentation DDW May 23, 2007: Advances in Crohn’s Disease, Washington Convention Center, Washington DC. Oral presentation at University of Michigan Senior Resident Research Symposium May 23, 2008.

Singh M, Mendis C. Alterations in Gene Expression Caused by Bacterial Toxins Using Differential Display. Abstract; Poster presentation August 12, 1999, Walter Reed Army Institute of Research.

Professional Society Memberships:

American College of Lifestyle Medicine

The True Health Initiative

The American Academy of Private Physicians

The American Academy of Anti-Aging Medicine

Crohn’s and Colitis Foundation of America

American Gastroenterological Association

American College of Gastroenterology

American Society for Gastrointestinal Endoscopy

American College of Physicians

American Medical Association

American Medical Student Association