Saint Joseph Hospital General Surgery Residency


Physician faculty members of the general surgery residency program at Saint Joseph Hospital are recognized for their excellence in both clinical and academic medicine. There is a high level of collegiality among the residents and faculty.

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Jason Johnson, DO, FACS, FASMBS

Program Director, General Surgery Residency Program

Dr. Jason Johnson joined Saint Joseph Hospital as the Program Director for the General Surgery Residency Program in April 2016. Dr. Johnson has extensive experience in surgical education. having served as the program director of the general surgery residency at William Beaumont Army Medical Center in El Paso, and as the assistant program director of the general surgery residency at Spartanburg Medical Center in Spartanburg, South Carolina.

Dr. Johnson's current clinical practice is diverse and includes robotic, laparoscopic, bariatric and trauma surgery. He had been a pioneer in the incorporation of the daVinci robot into surgical education, and was the first surgeon in the state of South Carolina to perform a weight loss procedure using the daVinci robot.

A Denver native, Dr. Johnson has been married for 18 years and has three children.

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Wendy Peterson, MD, FACS

Surgical Faculty

Dr. Peterson grew up in Nebraska and completed medical school at the University of Nebraska College of Medicine. She did her general surgery training at the University of California San Francisco- Fresno Program. Dr. Peterson joined the Colorado Permanente Medical Group upon completion of training in 2005 where she practiced general surgery for over 10 years. She then accepted a position as a full time faculty member of the residency program in 2016.

Her areas of interest are in endocrine and colorectal surgery, complex hernia repair and robotic surgery as well as resident education. Dr. Peterson helps organize and run many of the resident conferences and skills labs in addition to being the Medical Director of Downtown Surgery Specialists.

Dr. Peterson has been married for over 19 years and has two children. In her free time, she enjoys running, snowboarding, wakeboarding and mountain biking with her family.


Emily Speer, MD

Surgical Faculty

Dr. Emily Speer is a fellowship-trained Foregut and Minimally Invasive Surgeon with a particular interest in antireflux procedures. Dr. Speer attended medical school at Georgetown University in Washington, DC, and completed her residency in General Surgery at the University of Colorado. During this training, she developed a passion for minimally invasive, and particularly foregut, surgery. This led her to a fellowship in Advanced GI and Minimally Invasive Surgery with Dr. Lee Swanstrom and colleagues in Portland, Oregon. During this fellowship, Dr. Speer became proficient in the most up-to-date surgical and endoscopic techniques for foregut problems such as gastroesophageal reflux, esophageal disorders, diaphragmatic hernias, and morbid obesity. Her special interests include laparoscopic tailored fundoplications, myotomies, and reoperative paraesophageal hernia repairs, as well as newer technologies such as POEM (Per Oral Endoscopic Myotomy) for achalasia and LINX for GERD. She is also trained in BARRX for Barrett’s esophagus, flexible endoscopic cricopharyngeal myotomy to treat Zenkers diverticulum, esophageal dilation and stenting, laparoscopic and endoscopic feeding tubes, pyloroplasty and gastrectomy for treatment of gastroparesis, and bariatric surgery.

Patient satisfaction and safety are at the core of Dr. Speer's decision-making and she strives to provide the very best and most compassionate care to each patient by individually tailoring treatment plans to fit each person’s need. Dr. Speer aims to provide patients with the education they need to make informed treatment decisions in order to provide them with superior surgical care in the least invasive way possible.


G. Edward Kimm, MD, FACS

Associate Program Director

Dr. Ed Kimm, originally from Minnesota, completed his undergraduate and medical school education at the University of Minnesota. He then completed his surgical residency in Santa Barbara before starting a solo practice in Steamboat Springs in 1992, enjoying the lifestyle and challenges of a rural “general general” surgeon for almost 15 years. Ready for a change of pace, he spent four years on the surgical faculty of Denver Health Medical Center, initially as an “acute care surgeon” and eventually assuming responsibility for the breast surgery program. Having now come full circle, he is back enjoying the challenges of general surgery and student and resident education at Saint Joseph Hospital. When outside of the hospital, he enjoys spending time with his family and skiing, biking, running and fishing as much as possible.


Harris Whitton Hollis, Jr., MD, FACS

Senior Research Advisor

Dr. Hollis graduated from Vanderbilt University and earned his medical degree from the University of Virginia. He was the Chief of Vascular Surgery at Fitzsimmons Army Medical Center before coming to Saint Joseph Hospital as a vascular and general surgeon in the Colorado Permanente Medical Group. He is an Associate Clinical Professor of Surgery at UCHSC.


Laurie Cooper

Program Administrator

Laurie brings twenty plus years experience in healthcare administration as the General Surgery Program Administrator. She loves helping people and meeting new faces from all over the country. Her interests include: gardening, reading, history, camping, and family events.

Contact Laurie: or 303-837-7295


Sarah Flores

Program Administrator

Sarah spent the majority of her life in Colorado. She grew up in the Denver metro area, and received her Associates Degree in Business Management and Accounting in 2013 from the Community College of Denver. She is currently working towards completing a 4-year degree in Human Resource Management at Colorado State University. Sarah feels like she grew up in Saint Joseph Hospital, as she spent a lot of her free time helping her mother as she worked there for so many years. Being at Saint Joseph Hospital and working for the Internal Medicine residency program feels like home. Sarah became the Medical Student Coordinator for the department in 2012. She enjoys working in the IM department and having the opportunity to be a part of the educational training of medical students and residents, being able to meet so many different people every year has made this job that much more enjoyable.

Teacher of the Year 2018 - 2019


Dr. John G. Raheb

Dr. Raheb joined the SCL Health group in 2019 but has been working with residents since 2017. He trained at the Naval Medical Center and subsequently completed a fellowship in Minimally Invasive Surgery. He now specializes in weight loss surgery. His technical expertise in advanced laparoscopy and commitment to surgical education make him an invaluable role model for trainees. He was therefore recognized for his excellence in teaching by popular vote.

Colorado Permanente Medical Group

Residents also work closely with the variety of surgical specialists employed at CPMG. Though many of these faculty are fellowship trained minimally invasive or thoracic surgeons, they typically build general surgery practices with a focus on their areas of expertise. Through their exposure to the Kaiser system, residents are also privy to another practice model that can help to evaluate future career opportunities.

Peggy Schrieber, MD

CPMG Faculty Member

A faculty member through CPMG, Dr. Schrieber is a talented surgeon who is active in administration – an excellent role model for future physician leaders. Through her decades-long relationship with the Mwandi Mission Hospital in Western Zambia, Dr. Schrieber has provided longitudinal surgical care to patients in this region. Residents have the opportunity to accompany her for 10 days on an annual to biannual basis and gain global health experience. Procedures commonly performed include: thyroidectomy, open cholecystectomy, hernia repair, and lipoma excision.

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