777 Hospital Way, Pocatello, ID 83201 | (208) 239-1000

Portneuf Surgical Specialists

Meet Out Surgeons & Medical Staff

Drew W McRoberts, MD

Drew W McRoberts, MD

Trauma Director, Chief of Surgery

Specialties & Interests

Board Certified: Surgery

General Surgery

Education & Training
  • Residency: Univ of Washington Hospital , 1994
  • Internship: Univ of Washington Hospital , 1990
Alian Garay, MD

Alian Garay, MD

Director of Bariatric Surgery

Dr. Garay understands all the complex issues that surround weight related health concerns. He is the only board-certified, fellowship-trained bariatric surgeon in southeast Idaho, and his advanced skills in minimally invasive surgery greatly enhance his patient's recovery time and well-being.

Dr. Garay's oversight and vision have helped PMC's Weight Management Institute develop into a highly respected, interdisciplinary resource for patients throughout southeast Idaho.

The expertise of Dr. Garay and the caring support of the Weight Management Institute's team is greatly enhanced by PMC's new state-of-art surgical facility designed for the care of bariatric patients.

Specialties & Interests

Board Certified: Surgery

General Surgery

Education & Training
  • Fellowship: Legacy Good Samaritan Hospital , 2011
  • Residency: University of Colorado Health Science Center , 2010
Katie J Fritz, MD

Katie J Fritz, MD

Specialties & Interests

Board Certified: Surgery

General Surgery

Education & Training
  • Residency: Baylor College of Medicine , 2011
Gregg A Marshall, MD

Gregg A Marshall, MD

Specialties & Interests

Board Certified: Surgery

General Surgery

Education & Training
  • Residency: University of Colorado Hospital , 2012
  • Medical School: The Oregon Health Sciences University School Of Medicine , 2007
Kate E Preston, MD

Kate E Preston, MD

Specialties & Interests

General Surgery

Education & Training
  • Residency: Banner Good Samaritan Medical Center , 2013
  • Medical School: Louisiana State University School of Medicine , 2008