Arthur de Lorimier, M.D., C.P.E., COL(retired)

Arthur J. de Lorimier, M.D., C.P.E., COL(retired)


Pediatric Gastroenterology




  • Associate Clinical Professor of Pediatrics
  • Director of Endoscopy and Motility Program
  • Certified Physician Executive


To see if Arthur J. de Lorimier is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

Glassrock Building

2521 Stockton Blvd., Suite 3200
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

Department Referral Phone: 800-2-UCDAVIS (800-282-3284)
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Philosophy of Care

As a 24 year veteran of Army Medicine I have come to recognize that healthcare is a team sport. As such, I actively seek the cooperative input of parents and primary caregivers in the care of my patients so that the therapeutic options I provide are practical and timely to the patient’s needs.  

Coordination of care with other sub-specialists is essential to the care of my patients.  I am willing to consider integrating non-traditional options in their care.   I consider it a great honor to provide for the healthcare needs of children.

Clinical Interests

I care for patients with all forms of Pediatric gastrointestinal disorders to include feeding difficulties, motility disorders, functional disorders of the bowel, Inflammatory Bowel Diseases, and nutritional disorders.  

As a Helms Medical Acupuncture trained physician, I provide acupuncture to appropriate patients as an adjunct to traditional treatments in the care of children with functional and motility disorders of the gut.

Research/Academic Interests

Dr. de Lorimier is interested in the study of functional and motility disorders of the gastrointestinal tract as well as integrating non-traditional forms of healthcare in the care of his patients.  


Pediatric Gastroenterology and Nutrition

Center/Program Affiliation

UC Davis Children's Hospital


M.D., Loyola University, Stritch School of Medicine, Maywood IL 1991

B.A., Santa Clara University, Santa Clara CA 1986

Internship: Pediatrics, Tripler Army Medical Center, Honolulu HI 1991-1992


Pediatrics, Tripler Army Medical Center, Hololulu HI 1992-1994


Pediatric Gastroenterology, Hepatology and Nutrition, Walter Reed Army Medical Center (National Capital Consortium), Washington DC 1997-2000

Board Certifications

American Association for Physician Leadership, Certified Physician Executive, 2013

American Board of Pediatrics, 1995

American Board of Pediatrics, Pediatric Gastroenterology/Nutrition, 2001

Professional Memberships

American Association for Physician Leadership

Fellow, American Academy of Pediatrics

North American Society of Pediatric Gastroenterology, Hepatology and Nutrition

Honors and Awards

Secretary of Defense Superior Service Award, 2015

Order of Military Medical Merit, 2011

James A Bass Teaching Award, 2003

American Academy of Pediatrics Ogden Bruton Award, 2000

Select Recent Publications

Coster TS, Wolf MK, Hall ER, Cassels FJ, Taylor DN, Liu CT, Trespalacios FC, de Lorimier A, Angleberger DR, McQueen CE. Immune Response, Ciproflaxacin Activity and Gender Differences after Human Experimental Challenge by Two Strains of Enterotoxigenic Escherichia coli. Infection and Immunity. 2007; 75(1): 252-59.

de Lorimier AJ, Byrd W, Hall ER, Roberts ZJ, McQueen CE, Tang D, Vaghan W, Cassels F. Murine Serum and Mucosal Antibody Response to Enterotoxigenic Escherichia coli Colonization Factor CS6. Vaccine 2003; 21(19-20):2548-55.

Hutchinson J, de Lorimier A. Five Lessons Learned With Electronic Military Medical Records. Council on Clinical Information Technology: The AAP Practice Management Newsletter. 2006; 4(2): 6.

Recent Videos


Pediatric GI with Acupuncture - UC Davis Children's Hospital