Emmett L. McGuire, MD, FACS

Program Director

Dr. McGuire program director for the Swedish Medical Center General Surgery Residency, is board-certified in general surgery and critical care medicine. He is also the Trauma Medical Director of North Suburban Medical Center. Dr. McGuire received his medical degree from the University of Hawaii School of Medicine. He completed an internship in general surgery at the University of Hawaii. He completed his residency in general surgery at the University of Hawaii and the Texas Tech University Health Sciences Center. He also completed a fellowship in trauma at Gran/Riverside Methodist Hospital and a fellowship in critical care at the Ohio State University Medical Center.

Glenda Quan, MD, FACS*

Senior Associate Program Director

Dr. Quan was raised in California. She attended the University of California at Berkeley, majoring in biology and English. She attended the University of California at Davis for medical school. She moved to Portland, Oregon, for surgical residency. Dr. Quan is board certified in general surgery and neurocritical care. She lives in Greenwood Village with her husband and two daughters.


Isabelle Audet, MD; trauma surgeon

Isabelle Audet, MD, was born in Detroit, Michigan. She attended undergraduate school in Albion, Michigan and completed her medical degree in 1995 at Abington Memorial Hospital in Abington, Pennsylvania. She completed her residency at the same program in 1999. Dr. Audet also completed a fellowship in 2001 with the American College of Surgeons. She currently practices as a trauma/acute care surgeon at North Suburban Medical Center in Thornton, Colorado.

Kaysie Banton, MD; trauma surgeon*

Kaysie Banton, MD, is the Trauma Services Medical Director at Swedish Medical Center. She began her role as both a trauma surgeon and medical director at Swedish in March 2018. Dr. Banton completed her medical degree at the University of New Mexico. She went on to complete her residency in general surgery at the University of Minnesota. She furthered her training with a fellowship in surgical infectious disease and a fellowship in surgical critical care at the University of Minnesota. She was the Acute Care Surgery Services Director at the University of Minnesota Medical Center, Fairview, before joining Swedish. She has many publications and presentations in her experience, as well as teaching and curriculum development expertise.

Lily Daniali, MD; burn surgeon

Dr Lily Daniali graduated medical school from the University of Washington School of Medicine. She completed her residency in plastic surgery at Rutgers Biomedical and Health Sciences School in Newark, New Jersey. She went on to complete a fellowship in hand and microsurgery at the University of Texas Southwestern and a craniofacial and pediatric plastic surgery fellowship at the Pediatric Plastic Surgery Institute.

Her first exposure to plastic surgery as a medical student was on a burn surgery ICU rotation. Immediately she knew plastic and reconstructive surgery was her professional path. “I love how reconstructive plastic surgeons use scientific advantages, artistry, creativity, and good doctoring to restore injured patients.”

Dr. Daniali takes care of patients with both simple and very complex reconstructive problems. She spends a great deal of time talking with and teaching patients and their families about what has happened from an injury. “It’s really important to me that my patients know they can ask me anything and that we can discuss any issue they have concerns about. In the end, they all know I am 100% committed to helping them recover and get back to a fulfilling life. Being able to help my patients attain that goal, as a team, is the best part of my day.”

Dewayne Edwards, MD; trauma surgeon

Dewayne Edwards was born in Savannah, Georgia, but grew up in Barnwell, South Carolina. He was a nurse for 10 years prior to entering medical school. He completed medical school at West Virginia School of Osteopathic Medicine in 2007. He completed his residency at William Beaumont Army Medical Center in 2013. He was deployed to Afghanistan in 2014 and 2018. He has served for 11 years in active duty in the Army. He is currently a trauma/acute care surgeon at North Suburban Medical Center and has been on staff since July 2017.

Laura Hafertepen, MD; breast surgeon

Laura Haftertepen, DO, is a breast surgeon practicing at Swedish and the Centrum Surgery Center in Colorado. She completed her degree is osteopathic medicine at the Western University of Health Sciences/College of Osteopathic Medicine of the Pacific in Calfornia. Her general surgery residency was completed at the University of California San Francisco Fresno. She has received many honors and awards in her career and has many professional affiliations and publications/presentations in her experience. She speaks Spanish and is interested in outdoor activities, cooking and baking in her free time.

Burt Katubig, MD; trauma surgeon*

Dr. Katubig has been a trauma, critical care, and acute general surgeon at Swedish since 1997. He completed his general surgery and trauma surgery residency at Cook County Hospital/University of Illinois in 1996. He then completed a fellowship in critical care/trauma at St. Louis University Hospital in 1997. He moved to Colorado after graduating from St. Louis. During his time at Swedish, he has served as the ICU Surgical Director, Trauma Medical Director, Director of Ethics committee, and Director of Trauma/Outreach Program. He is currently the Trauma Medical Director at Sky Ridge Medical Center in Lone Tree, CO. He is certified as an ATLS instructor and course director. He is currently a member on the state/regional trauma committee and has presented at multiple hospital, regional, local, and neighboring state conferences regarding trauma and critical care topics.

Jane Kercher, MD; breast surgeon

Jane Kercher, MD, is originally from Wyoming. She attained her medical degree at the University of Utah College of Medicine and completed her internship and PGY2 in general surgery at the University of Utah Affiliated Hospitals. She was a research fellow in the Division of Vascular Surgery and then graduated residency in general surgery at the University of Nebraska Medical Center. She has authored many publications and given many presentations in her career. She is currently a breast surgeon at Swedish and at the Centrum Surgery Center.

Eric Kortz, MD; hepatobiliary surgeon

Dr. Kortz is a general surgeon and performs all general surgical procedures. He has specific interest, specialty training and expertise in breast surgery, advanced laparoscopic surgery, colon and rectal surgery, endocrine surgery (thyroid and parathyroid), complex surgical problems of the liver and pancreas (hepatobiliary), and surgical oncology (the surgical management of cancer). He has more than 25 years of surgical experience. Dr. Kortz is a native of Colorado. He attended the University of Vermont, graduating magna cum laude. In 1982, he graduated from the University of Colorado Medical School with honors in surgery. He received his general surgery training at the Massachusetts General Hospital in Boston. He has been selected at 5280 Magazine’s Top Doctors on 13 separate occasions, most recently in 2012. His personal interests include hiking, camping and skiing.

Bryan Kramer, MD; vascular surgeon

Dr. Kramer completed his undergraduate studies at Rice University and his medical degree at Albany College in 1995. He completed residency in general surgery at the University of Cincinnati in 2000 and a fellowship in Vascular Surgery at Albany Medical Center Hospital in 2002. Prior to moving to Denver, he was a member of the Vascular Group, PLLC and an assistant professor of Surgery at Albany Medical Center, supervising and training medical students, surgery residents and vascular surgery fellow. Dr. Kramer is board-certified in both general and vascular surgery and has been practicing exclusively vascular surgery since 2000. He performs all types of venous and arterial surgery, specializing in open repair of complex abdominal aortic aneurysms. He also has extensive experience in the technique of eversion carotid endarterectomy under local/regional anesthesia.

Luciano Lemos, MD; medical intensive care specialist

Dr. Luciano Lemos Filho is an internist in Denver, Colorado. He received his medical degree from Albert Einstein College of Medicine of Yeshiva University. He specializes in internal medicine, infectious disease and critical care medicine. He is affiliated with National Jewish Health and Swedish Medical Center.

Aaron Lynn, MD; trauma surgeon

Aaron D. Lynn, M.D., Ph.D. is a board-certified general surgeon. He is a Trauma and Acute Care Surgeon at North Suburban Medical Center and several other hospitals in the Denver Metro Area. He received his medical degree from the University of Colorado School of Medicine. Dr. Lynn also completed a Ph.D. in Chemical and Biological Engineering with research focused on biomaterials development and the tissue response to implanted materials. He completed his residency training in general surgery at St. Joseph Hospital in Denver, Co.

Jenifer Marks, MD; thoracic surgeon

Jenifer Marks, MD, is a thoracic surgeon at the Medical Center of Aurora. She received her medical school training at the University of Colorado School of Medicine. She completed her residency at New York-Presbyterian Hospital, Weill Cornell Medical Center, in general surgery. She went on to fellowship at the University of Texas MD Anderson Cancer Center, in thoracic surgery. She is board certified by the American Board of Surgery and the American Board of Thoracic Surgery. Her areas of expertise include: achalasia, Barrett’s esophagus, chest wall tumors, empyema, esophageal cancer, gastro-esophageal reflux disease, hyperhidrosis, lung cancer, lung nodules, mediastinal masses, pleural effusions, pneumothorax and rib lesions.

Kian Modanlou, MD; hepatobiliary surgeon

Dr. Modanlou is a native of Southern California. He completed his undergraduate studies at Duke University where he graduated with distinction with a degree in biology. He returned to his home state for medical school and graduated from the University of California, Davis, School of Medicine. Dr. Modanlou then moved to Denver where he completed his residency in general surgery at the University of Colorado Health Sciences Center. He then went on to Chicago where he completed a fellowship in Abdominal Transplant and Hepatobiliary Surgery at Northwestern University. After stints at Saint Louis University and the University of Tennessee, Dr. Modanlou was fortunate to move back to Denver in 2015 to be the Surgical Director of Transplant at Porter Adventist Hospital. In 2018 he decided to join Dr. Eric Kortz to help him expand the Complex Gastrointestinal Surgeries Program at the Center for Diseases of the Liver and Pancreas at Swedish Medical Center. Dr. Modanlou’s professional interests include all aspects of general surgery and complex problems of the liver, bile ducts and pancreas including minimally invasive techniques. He strongly believes in a multidisciplinary approach to complex medical problems and personalization of the patient experience.

Andrew Nemechek, MD; head/neck surgeon

Dr. Nemecheck is board-certified in Otolaryngology-Head and Neck Surgery and serves as the Medical Director of Head and Neck Oncology at Porter Adventist Hospital. He is fellowship-trained in advanced head and neck oncologic surgery. His other clinical interests include advanced cutaneous malignancies and reconstruction, HPV-related head and neck cancers, and tumors of the skull base and paranasal sinuses. He also commonly treats tumors of the thyroid and parathyroid glands as well as salivary neoplasms. Dr. Nemechek earned his medical degree from Tulane University School of Medicine where he also completed training in Otolaryngology and General Surgery. He completed his fellowship in advanced head and neck oncologic surgery at University of Texas MD Anderson Cancer Center.

Benson Pulikkottil, MD; burn surgeon

Benson Pulikkottil, MD, has been in practice at the Swedish Medical Center Burn and Reconstructive Centers of Colorado since September 2016. He attained his medical degree at Albany Medical College in 2001. He went to residency at Rutgers New Jersey Medical School in general surgery. He completed a research fellowship in the Division of Plastic and Reconstructive Surgery at the University of Pittsburgh Medical Center. He also completed two additional fellowships: one in plastic surgery at the University of Texas Southwestern and one in orthopedic hand surgery at the University of Pittsburgh Medical Center in 2016.

John Reister, MD; orthopedic surgeon

John Reister, MD, was born in Washington, DC. For his educational training, he attained his medical degree from East Tennessee State University. He completed his residency in orthopaedic surgery at Fitzsimmons Army Medical Center in Aurora, Colorado. He currently works at Swedish Medical Center as an orthopaedic surgeon. He is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgeons.

Cassandra Reynolds, MD; trauma surgeon*

Cassandra Reynolds, MD, FACS is a Trauma/ Critical Care Surgeon at Swedish Medical Center in Denver, Colorado. Dr. Reynolds completed her Trauma Critical Care/ Fellowship at University of California Davis in Sacramento.  She joined the team at Swedish after having worked at East Carolina University in Greenville, NC a busy level 1 academic trauma center for the last three years. 

Dr. Reynolds did her general surgery residency at Texas A&M- Scott and White in Temple, TX after completing her Doctor of Medicine at University of Nebraska in Omaha, NE.  Dr. Reynolds is a member of numerous professional organizations, including the American Medical Association, the American College of Surgeons, the Society of Critical Care Medicine, the Western Trauma Association, the Eastern Association for the Surgery of Trauma and the Association of Women Surgeons. She has been involved in several national research presentations on topics in acute care surgery and trauma surgery and has authored peer reviewed journal articles and abstracts.

Benjamin Rubin, MD; neurosurgeon

Dr. Benjamin Rubin was born and raised in Denver, Colorado. His interest in neuroscience and neurosurgery began in college while attending the University of Colorado at Boulder. While he was there he majored in Psychology and minored in Biochemistry. After college he stayed in Boulder and began working in a neuroendocrine laboratory studying the neurobiology of stress responses. From there, he moved to Chicago to attend the Chicago Medical School where he earned his medical degree. His interest in Neurosurgery was solidified during his trauma rotations in Chicago and a subsequent rotation at the Mayo Clinic in Minnesota. After medical school he was accepted into a rigorous and outstanding residency program at NYU Medical Center and Bellevue Hospital in New York, NY. Dr. Rubin now works as a neurosurgeon at the Colorado Brain and Spine Institute. His neurosurgical interests include: Cranial: Skull base tumors, Brain Aneurysms, Vascular Malformations of the Brain, Brain Tumors, Epilepsy, Trigeminal Neuralgia, Hydrocephalus, Reconstructive Cranioplasty Spine: Spinal Stenosis, Disc herniation, Nerve compression, Spinal Metastatic Disease, Deformity Correction, Complex Spine Reconstruction

Gavin Sigle, MD; colorectal surgeon

Gavin Sigle MD MBA is a board-certified colon and rectal surgeon and a board-certified General Surgeon. He is the chair of the Robotic Surgery program at The Medical Center of Aurora. Although a Denver native, Dr. Sigle recently moved back to Colorado after spending 5 years at Washington Hospital Center and Georgetown University in Washington DC. There he worked at an urban, tertiary care center and was involved in training medical students, residents and colon and rectal surgery fellows. Prior to that, he finished his Colon and Rectal Surgery Fellowship training at the University of Southern California in Los Angeles CA, where he gained experience in the latest minimally invasive techniques for complex pelvic cancers, benign and malignant colon and rectal disease. In addition he received advanced training in HIV-related anorectal disease and pelvic floor disorders.

Dr. Sigle has served as medical director of the Colon and Rectal Surgery Program and the Pelvic Floor Program at three respected hospitals in metro Denver. He has published many articles in peer-reviewed journals and delivers lectures in the fields of general surgery and colon and rectal surgery.

When he is not in the office performing laparoscopic and minimally invasive colon and rectal surgery, Dr. Sigle loves spending time outdoors playing soccer, skiing and mountain biking.

Steven Snively, MD; wound surgeon

Steven Snively, MD, is a wound specialist at Swedish Medical Center. He received his medical degree from the University of Colorado at Denver. He was a cardiovascular research fellow at New York University Medical Center. He completed his residency in plastic surgery at the University of Texas Southwestern Medical School. Dr. Snively has teaching expertise, belongs to many professional organizations/affiliations, and has publications/presentations in his experience.

Peter Syre, MD; neurosurgeon

Dr. Peter Syre has always been interested in the neurosciences and studied it extensively. He has also always found a need to volunteer and served in the Peace Corps in South America before beginning medical school. With this background, while in medical school he became fascinated with the intricacies of the nervous system and the complex bioengineering involved in the anatomy of the brain and the spine. The precise nature of neurosurgery is a very rewarding practice. Dr. Syre completed his residency at the University of Pennsylvania where he pursued further fellowship training in the treatment of spinal disorders. He has a great interest in spinal scoliosis, spinal trauma, and tumors of the spine in addition to the breadth of neurosurgical diseases. He believes that the key to exemplary neurosurgical treatment is patient centered care where each treatment is individualized and each patient is treated as a person, not a disease. With this mindset, patients can have the best outcomes possible and both he and his patients can accomplish their ultimate goal, regaining their life. His neurosurgical interests include: Cranial: Brain tumors, brain metastases, trigeminal neuralgia, gamma knife radiosurgery Spine: Spinal tumors, spinal deformities, spinal trauma, spinal pain, minimally invasive spine, complex spinal instrumentation, spinal cord stimulation, spinal radiculopathy and stenosis, degenerative disc disease, spondylosis, spondylithesis Other: Special interest in neurotrauma, peripheral nerve disorders, carpal tunnel syndrome, ulnar nerve decompression, pain syndromes

John Tillett, MD; urologist

John W. Tillett, MD FACS, is a board-certified urologist with the Urology Center of Colorado on staff at Swedish Medical Center and Craig Hospital. He graduated magna cum laude from Vanderbilt University. He received his medical degree from Emory University School of Medicine, where he also completed his post-graduate urology training. He is a Clinical Assistant Professor at the University of Colorado School of Medicine, and he was also previously on the medical school faculty at Florida State University and the Uniformed Services University of the Health Sciences. He previously practiced on active duty in the U.S. Navy, as well as in private practice in Naples, FL, before relocating to Denver. Dr. Tillett's main clinical areas of interest include robotic surgery for kidney cancer and other disorders, kidney stones, neurogenic bladder, urethral reconstruction, and microsurgical management of chronic testicular pain.

Richard Tillquist, MD; GI-lap surgeon

Dr. Richard Tillquist is a general surgeon in Englewood, Colorado and is affiliated with multiple hospitals in the metro area, including Swedish Medical Center. He received his medical degree from Baylor College of Medicine and he completed his residency at Baylor University Medical Center. He has been in practice for more than 33 years. He specializes in bariatric surgery and general surgery at SurgOne, PC.

Bruce Weber, MD; endoscopy specialist

Bruce Weber, DO, is an internal medicine specialist who practices at North Suburban Medical Center. He has been in practice for 42 years. He is an endoscopist.

Adam Weingart, MD; anesthesiologist

Adam Weingart, MD, is an anesthesiologist with USAP South Denver Anesthesiologists. He holds many committee positions on various boards and committees in the community. He received his medical degree from the University of Colorado in Denver. He completed his internship year of residency at Exempla St. Joseph’s Hospital in Denver. Then he completed his residency in anesthesiology at Northwestern Memorial Hospital. He furthered his training with an adult and pediatric regional and acute pain fellowship at Northwestern Memorial Hosptal. He is ABA board certified and belongs to many professional memberships and has both publications and presentations in his experience. He is also adjunct clinical faculty with Rocky Vista University in Parker, Colorado.

Jodi Widner, MD; breast surgeon

Jodi Widner, MD, completed her residency in general surgery at St. Joseph’s Hospital in Denver, Colorado. She has a doctorate of medicine from the University of Colorado. She works as a general and breast surgeon at Swedish and Centrum Surgery Center in Colorado. She is certified by the American Board of Surgery and has received many honors and scholarships in her career.

John Wolz, MD; trauma surgeon

Dr. Wolz is a board-certified critical care and general surgeon. He attended Northwestern University for medical school and moved to Colorado to do his residency at the University of Colorado Health Sciences Center.

James Yon, MD; critical care and trauma surgeon*

Dr. Yon is a trauma & critical care surgeon and Director of the Surgical ICU at Swedish Medical Center. He was raised in the Upstate area of South Carolina and went on to attend Clemson University, majoring in Biology and English. He then received his medical degree from the Medical University of South Carolina in Charleston. He completed his residency at the Medical College of Georgia. Prior to starting work at Swedish Medical Center, Dr. Yon completed his trauma, critical care, and burn surgery fellowships at the Cook County Trauma Unit in Chicago, Illinois. His clinical interests include complex abdominal closure, surgical education, and trauma epidemiology. He lives in Denver with his wife and two dogs.

*Core faculty