Hazem Shamseddeen, M.D., FACS, FASMBS

Hazem Shamseddeen, M.D., FACS, FASMBS


Surgery - General

Surgery - Gastrointestinal

Surgery - Foregut & Metabolic

Surgery - Robotic

Robotic Surgery




  • Associate Health Sciences Clinical Professor


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

UC Davis Medical Center - Cypress Building

2221 Stockton Blvd., Suite E
Sacramento, CA 95817
Driving Directions

Primary Phone:

UC Davis Medical Group - Folsom

271 Turn Pike Dr.
Folsom, CA 95630
Driving Directions

Primary Phone:

Additional Phone Numbers

Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Clinical Interests

Key advanced laparoscopic skills: bariatric procedures/revisions, colon resections, inguinal/ventral hernia, complex foregut

  • Bariatric surgery experience: RYGB, sleeve gastrectomy, lap band, revisional bariatric cases
  • Complex abdominal wall reconstruction, such as anterior and posterior component separation
  • Performing robotic complex abdominal wall reconstruction


Foregut and Endometabolic Surgery


M.D., Beirut Arab University, Lebanon, 1996-2003

Internship: Surgery, American University of Beirut, Lebanon, 2003-2005


General Surgery, North Shore-LIJ Health System, New York, 2005-2010


MIS/Bariatrics, UC Davis Medical Center, 2010-2011

Select Recent Publications

“Psychological Predictors of Weight Loss Success Following Roux-En-Y Gastric Bypass”, H.Shamseddeen, MD; R. Mostaedi, MD; Jawad Ali, MD; Mohamed Ali, MD, Current Research in Diabetes and Obesity Journal. Vol.3 Issue 3, Aug 2017.

“Changes in renal function following Roux-en-Y gastric bypass: a prospective study”, Getty JL, Hamdallah IN, Shamseddeen HN, Wu J, Low RK, Craig J, Ali MR. Obes Surg. 2012 Jul;22(7): 1055-9.

“Greater than expected prevalence of pseudotumor cerebri: a prospective study”, Hamdallah IN, Shamseddeen HN, Getty JL, Smith W, Ali MR. Surg Obes Relat Dis. 2011 Dec 10.

“Epidemiology and economic impact of obesity and type 2 diabetes”, Shamseddeen H, Getty JZ, Hamdallah IN, Ali MR. Surg Clin North Am. 2011 Dec. 91(6):1163-72, vii. Epub 2011 Oct 2. Review.

“Laparoscopic vs open gastric bypass in the management of morbid obesity: a 7-year retrospective study of1,364 patients from a single center”Agaba EA, Shamseddeen H, Gentles CV, Sasthakonar V, Gellman L, Gadaleta D. Obes Surg. 2008 Nov;18(11), 1359-63.

“Retrospective analysis of abdominal pain in postoperative laparoscopic Roux-en-Y gastric bypass patients: is a simple algorithm the answer?”, Agaba EA, Gentles CV, Shamseddeen H, Sasthakonar V, Kandel A, Gadelata D, Glenn L. Surg Obes RelatDis. 2008 Sep-Oct. 4(5), 587-93.

“Fate of retained capsule: a pathognomonic for surgery.Agaba EA”, Shamseddeen H, Sasthakonar V, Sivalingham V, Shah KG, Ravikumar TS, Nadjari H, Denoto G. Am Surg. 2007 Nov. 73(11), 1140-3.

“Laparoscopic Gastric Banding Algorithm for Lapband Salvage in Patients with Poor Weight Loss”, Larry Gellman, MD; Gentles Charmaine, ANP; Hazem Shamseddeen, MD; Dominick Gadelata, MD (ASMBS, San Diego 2007)

“A Retrospective Analysis of Abdominal Pain in the Post-Op Laparoscopic Roux-En-Y-Gastric Bypass Patients: Is Simple Algorithm theAnswer?”, Emmanuel A Agaba; Charmaine V Gentles; Hazem Shamseddeen; Domick Gadelata; Larry Gellman (ASMBS, San Diego 2007)

“Psychological Predictors of Weight Loss Success Following Roux-En-Y Gastric Bypass”, Hazem Shamseddeen, MD; Jorge L. Zelada Getty; Isam Hamdallah; Mohamed Ali, MD (ASMBS, Orlando 2011)