Physicians By Centers for Gastroenterology
Dr. Ana Huerta Alardin of Center for Gastroenterology

Dr. Ana Huerta Alardin

Dr. Ana Huerta Alardin was born and raised in Tampico, Mexico.  She earned her medical degree from the Universidad Autonoma de Tamaulipas, Facultad de Medicina, Tampico, Tamaulipas Mexico.  She completed her Internal Medicine residency at Texas Tech University Health Science Center, El Paso, Texas in 2011. She then finished her Gastroenterology and Hepatology  Fellowship at the University of Iowa Hospitals and Clinics, Iowa City, Iowa in 2014.  She worked as a Gastroenterologist at Allen Digestive Health and Cedar Valley Medical Specialists from 2014-2017.  She is Certified with the American Board of Internal Medicine and Gastroenterology.   She will be providing care at our Greeley office location.  She joined Centers for Gastroenterology in 2018.  Se habla Espanol!

Dr. Sean Caufield of Centers for Gastroenterology

Dr. Sean Caufield

Dr. Caufield received his undergraduate degree in Biology from the University of Notre Dame in Notre Dame, Indiana. He is board certified in Internal Medicine and Gastroenterology. He earned his medical degree in 2005 from the Stritch School of Medicine in Loyola, Illinois. Dr. Caufield completed his internship and residency at the Naval Medical Center Portsmouth in Portsmouth, Virginia. He then finished his Gastroenterology Fellowship at the Naval Medical Center in San Diego, CA in 2013. Dr. Caufield served an additional three years in the Navy, concluding his military career as the Director of Endoscopy at the Naval Medical Center in Portsmouth, VA. He is a member of the American College of Gastroenterology and the American Society of Gastrointestinal Endoscopy. Dr. Caufield joined Centers for Gastroenterology in 2016.

Dr. Rebecca C. Dunphy from the Centers for Gastroenterology in Fort Collins

Dr. Rebecca C. Dunphy

After studying for her undergraduate at Wellesley College, Dr. Dunphy received her medical degree from St Louis University School of Medicine in 1996. Dr. Dunphy completed an internship at Barnes-Jewish Hospital, St. Louis Missouri in 1997 after which she completed her Residency and Fellowship in Gastroenterology at the University of Florida, Gainesville, Florida. She is a member of the American Gastroenterological Association and the American College of Gastroenterology. Dr. Dunphy was certified with the American Board of Internal Medicine in 1999, and the American Board of Gastroenterology in 2002. Dr. Dunphy joined the practice in 2003.

Dr. Mark N. Durkan from The Centers for Gastroenterology

Dr. Mark N. Durkan

Dr. Durkan graduated from the National University of Ireland, University College in Dublin in 1993. After an internship at Limerick Regional Hospital in Ireland, Dr. Durkan completed his residency at Saint Josephs Hospital, County Tipperary, Republic of Ireland. He completed his Medicine Residency at the Beth Israel Medical Center , NY between 1986 – 1990. He then completed a fellowship in GI/ Liver at the University of Colorado Health Sciences Center in Denver, 1990 – 2002. He is a member of the American Gastroenterological Association as well as the American College of Gastroenterology. He has been certified with the American Board of Internal Medicine Gastroenterology since November of 2003 and has joined the Centers for Gastroenterology in 2002.

Dr. Jaclyn Fackler from The Centers for Gastroenterology

Dr. Jaclyn Fackler

Dr. Fackler earned her undergraduate degree in Biology with a pre-health concentration at St. Ambrose University in Davenport, Iowa in 2011. She earned her Doctor of Osteopathic Medicine degree in 2016 at Rocky Vista University College of Osteopathic Medicine in Parker, Colorado. She completed her Internal Medicine residency at Henry Ford Macomb Hospital in Clinton Township, Michigan in 2019. She then completed her Gastroenterology fellowship at Parkview Health System in Pueblo, Colorado in 2022. She is a member of the American College of Gastroenterology. She is board certified in Internal Medicine by the American Board of Internal Medicine. Dr. Fackler joined Centers for Gastroenterology in 2022.

Dr. Jimmy Giang from The Centers for Gastroenterology

Dr. Jimmy Giang

Dr. Giang earned his undergraduate degree in Human Physiology and Biology at the University of Oregon in Eugene, Oregon in 2009. He earned his Doctor of Osteopathic Medicine in 2014 at Rocky Vista University College of Osteopathic Medicine in Parker, CO. Dr. Giang would then complete both his Internal Medicine Residency and Gastroenterology Fellowship at Parkview Medical Center in Pueblo, Colorado, completing his fellowship in 2020. He has been in practice since August of 2020. He is a member of the American College of Gastroenterology, the American Society of Gastrointestinal Endoscopy, and the American Gastroenterology Association. Dr. Giang joined the practice in 2022.

Dr. Daniel D. Hampton from the Centers for Gastroenterology in Fort Collins

Dr. Daniel D. Hampton

Dr. Hampton received his undergraduate degree from New Mexico State University in Las Cruces, New Mexico. He attended The Ohio State University Medical School graduating in 2004. Dr. Hampton then completed both his Internal Medicine Residency and Fellowship in Gastroenterology at Duke University Medical Center in Durham, North Carolina. Dr. Hampton is a member of the American College of Physicians, American Gastroenterological Association and the American Society of Gastrointestinal Endoscopy. Dr. Hampton joined the practice in 2015.

Dr. Joseph X. Jenkins At Centers for Gastroenterology

Dr. Joseph X. Jenkins

Dr. Jenkins studied for his undergraduate as well as for his medical degree at Creighton University, Omaha Nebraska graduating in 1983. He finished his residency at the Medical College of Wisconsin, Milwaukee Wisconsin in 1986. Dr. Jenkins then completed his fellowship at Loyola University Medical Center and Hines Veterans Administration Hospital, Chicago, Illinois in 1988. He is board certified in Internal Medicine and Gastroenterology. He is currently a fellow of the American College of Gastroenterology, and a member of the Colorado Medical Association, American Society for Gastrointestinal Endoscopy and the American College of Physicians. Dr. Jenkins joined the practice in 1994.

Dr. Nicole Kershner from The Centers for Gastroenterology

Dr. Nicole Kershner

Dr. Kershner received her undergraduate degree from the University of North Carolina at Chapel Hill. She attended Eastern Virginia Medical School in Norfolk, Virginia, graduating in 2008. Dr. Kershner then completed both her Internal Medicine Residency and Fellowship in Gastroenterology, Hepatology, and Nutrition at the University of Louisville Hospital in Louisville, Kentucky. Dr. Kershner is a member of the American College of Physicians, American Gastroenterological Association and the American Society of Gastrointestinal Endoscopy. She is board certified in Internal Medicine and Gastroenterology. Dr. Kershner joined the practice in 2014.

Dr. Daniel Langer from the Centers for Gastroenterology in Fort Collins

Dr. Daniel Langer

Dr. Langer was raised in Colorado and received his undergraduate degree from Metropolitan State College of Denver in 1996. In 2001, he received his medical degree from the University of Colorado Health Sciences Center and was elected to the Alpha-Omega-Alpha medical honor society. He completed his internal medicine internship and residency, also at the University of Colorado, in 2004. From 2004-2008 he received fellowship training in Gastroenterology and Hepatology at the Mayo Clinic in Rochester, Minnesota. He focused on the study of liver disease and has published several peer-reviewed papers. He received the J. Arnold Bargen award for excellence in research. He then moved back to Colorado to join Centers for Gastroenterology in 2008. He is board certified in Internal Medicine and Gastroenterology. He is a member of the American Gastroenterological Association, American College of Gastroenterology, and the American Society for Gastrointestinal Endoscopy. Dr. Langer joined Centers for Gastroenterology in 2008.

 

Dr. Crystal North from The Centers for Gastroenterology

Dr. Crystal North

Dr. Crystal North received her B.S. in Molecular and Cellular Biology from the University of Alaska in Fairbanks. She earned her medical degree from Midwestern University in 2002 and completed her internal medicine residency training in 2005 at Providence St. Vincent Medical Center in Portland, Oregon. She finished her Gastroenterology fellowship training at Midwestern University in Chicago in 2008. Dr. North is board certified in Internal Medicine and Gastroenterology and is a member of the American Gastroenterological Association and the American College of Gastroenterology. In addition to enjoying the full spectrum of Gastroenterology, Dr. North has a particular interest in fecal (bowel) incontinence and, in partnership with Skyline Endoscopy Center, has developed a bowel incontinence clinic, offering a full spectrum of diagnosis and treatment options. Dr. North joined Centers for Gastroenterology in September 2009.

 

Dr. Stephen Sears from The Centers for Gastroenterology

Dr. Stephen Sears

Dr. Stephen Sears received his BS from James Madison University in Harrisonburg, VA. He earned his medical degree in 1995 from the Uniformed Services University of the Health Sciences in Bethesda, MD. Dr Sears completed his internship and residency at Eisenhower Army Medical Center in Augusta, GA. He then finished his Gastroenterology Fellowship at Brooke Army Medical Center in San Antonio, TX in 2001. Dr. Sears served an additional seven years in the Army, concluding his military career as Chief of Gastroenterology at Madigan Army Medical Center in Tacoma, WA. He is a member of the American College of Gastroenterology and the American Society of Gastrointestinal Endoscopy. He is board certified in Internal Medicine and Gastroenterology. Dr. Sears joined Centers for Gastroenterology in 2008.

Dr. Noah Settergren from the Centers for Gastroenterology in Fort Collins

Dr. Noah Settergren

Dr. Settergren earned his undergraduate degree in Biology at Gonzaga University, Spokane, Washington in 2006. He earned his Doctor of Osteopathic Medicine in 2013 at Western University of Health Sciences College of Osteopathic Medicine of the Pacific in Pomona, California. He completed his Internal Medicine residency at Parkview Medical Center in Pueblo, Colorado in 2016. He then completed his Gastroenterology Fellowship at Parkview Medical Center in Pueblo, Colorado in 2019. He is a member of the American College of Gastroenterology and the American Gastroenterology Association. He is board certified in Internal Medicine by the American College of Osteopathic Internists. Dr. Settergren joined Centers for Gastroenterology in 2019.

Dr. Lewis Strong At Centers for Gastroenterology

Dr. Lewis Strong

Lewis Strong, M.D., has been practicing gastroenterology in Loveland since 1991. Dr. Strong is Board Certified in Gastroenterology. He recertified in 2001. Dr. Strong earned his medical degree from Case Western Reserve University School of Medicine in Cleveland, OH. He completed his residency program at the University Hospitals of Cleveland. He received his Fellowship training in Gastroenterology from Case Western Reserve University School of Medicine. He has a particular interest in digestive diseases, diseases of the liver and colon cancer screening. In addition to keeping up with his busy medical practice, Dr. Strong enjoys bicycling, snow skiing and woodworking. He also speaks fluent French. Dr Strong joined the Centers for Gastroenterology in 2007.

Dr. Patrick Webb, AGAF at The Centers for Gastroenterology

Dr. Patrick Webb, AGAF

Dr. Webb received his undergraduate degree in Biomedical Engineering from Northwestern University in Evanston, Illinois. He earned his medical degree in 2004 from Loyola University Chicago, Stritch School of Medicine in Maywood, Illinois. Dr. Webb completed his residency and internship at the Naval Medical Center San Diego in San Diego, California. He then finished his Gastroenterology Fellowship at the Naval Medical Center in San Diego, California in 2011. Dr. Webb served in the Navy concluding his military career as the Department Chairman / Staff Gastroenterologist at the Naval Medical Center in Portsmouth, Virginia. He is a Fellow in the American Gastroenterology Association (AGAF) and a member of the American College of Gastroenterology and the American Society of Gastrointestinal Endoscopy. Dr. Webb joined the Centers for Gastroenterology in 2018.

Advanced Practice Provider

Brian Cronk At Centers for Gastroenterology

Brian Cronk, PA-C

After earning his Masters of Public Health from Loma Linda University in California in 1996, Brian attended the Primary Care Physician Assistant Program at Western University of Health Sciences in Pomona, CA. His prior medical setting experience includes family practice, urgent care, and internal medicine. He has a special interest in treating patients diagnosed with hepatitis. Brian joined Centers for Gastroenterology in 2007.

Michael

Michael Giacopelli, PA-C

Michael comes to Colorado all the way from Indiana. He received his undergraduate and a graduate degree from Butler University in Indianapolis. Upon completing PA school, he spent 2.5 years working for a private practice GI group. There he worked with patients and conditions such as irritable bowel syndrome, inflammatory bowel disease, diverticular disease, hemorrhoids, and other GI-related illnesses. When not in the office, he enjoys hiking, cooking, camping, and exploring new cities. Michael joined the Centers for Gastroenterology in Greeley in January 2020.

Cheyenne S. Clayson, PA-C at The Centers for Gastroenterology

Cheyenne S. Clayson, PA-C

Cheyenne earned her Bachelor of Science in Exercise Physiology from the University of Utah in Salt Lake City, Utah.  She then completed her Master of Science in Physician Assistant Studies from Ohio Dominican University in Columbus, Ohio.  Cheyenne has spent the entirety of her PA career working in gastroenterology and hepatology, both in Ohio and Colorado. Outside of work, she enjoys spending time with her family, being outdoors, traveling to new places, and watching college football. Cheyenne joined Centers for Gastroenterology in 2021.

Tara Jewell - DNP, NP-C at the Centers for Gastroenterology in Fort Collins

Tara Jewell, DNP, NP-C

Tara is a Doctor of Nursing Practice as well as a board certified Adult – Gerontology Nurse Practitioner with experience working with acute and chronically ill patients. Her prior medical experience includes caring for patients in the intensive care, cardiology, and oncology units in the hospital; as well as caring for patients in a gastroenterology practice. Tara earned her bachelor’s degree in nursing from the University of Iowa in 2004. While working as a registered nurse she obtained her Doctor of Nursing Practice at the University of Iowa in 2013. She is a member of the American Association of Nurse Practitioners. She joined the Centers for Gastroenterology in 2015.

Heidi J Harrold At Centers for Gastroenterology

Michael Giacopelli, PA-C

Michael comes to Colorado all the way from Indiana. He received his undergraduate and a graduate degree from Butler University in Indianapolis. Upon completing PA school, he spent 2.5 years working for a private practice GI group. There he worked with patients and conditions such as irritable bowel syndrome, inflammatory bowel disease, diverticular disease, hemorrhoids, and other GI-related illnesses. When not in the office, he enjoys hiking, cooking, camping, and exploring new cities. Michael joined the Centers for Gastroenterology in Greeley in January 2020.

Sharon Margraf - BSN, MSN, NP at the Centers for Gastroenterology

Sharon Margraf, BSN, MSN, NP

Sharon earned both her BSN and MSN from Loyola University in Chicago. She received her Adult-Gerontology Primary Care Nurse Practitioner Certification in 2013. Sharon has worked in gastroenterology at Loyola University Medical Center, Rush-Presbyterian St. Luke’s Medical Center, and at the University of Chicago Medical Center. Her prior medical experience also includes work in cancer care, hematology and general surgery. Sharon has made presentations on “Advanced Provider Perspectives: Treatment for Inflammatory Bowel Diseases, Best Practices in IBD Management, and Living with a J-Pouch for the Crohn’s and Colitis Foundation of America. Sharon joined Centers for Gastroenterology in 2016.

colin strack

Colin E. Strack, PA-C, MMS

Colin received his BS from Colorado State University in Fort Collins, CO. He earned his master’s in medical science from Saint Frances University in Loretto, PA and went on to earn his Physician Assistant Certification from Red Rocks Community College in Lakewood, CO. His prior medical experience includes working as a Certified Nursing Assistant at Poudre Valley Hospital and working as a PA for Front Range Gastroenterology and Colorado Endoscopy Centers, LLC. He enjoys cycling, hiking, and computer science. Colin joined Centers for Gastroenterology in 2017.

Physicians Paige Bruning, PA At Centers for Gastroenterology

Paige Bruning, PA

Paige received her BS from Grand Valley State university in Grand Rapids, MI.  She earned her master's in physician assistant studies from West liberty University in West Virginia.

Upon graduating, she worked for a private GI practice in Washington, PA where she managed various conditions including liver disease, irritable bowel syndrome, Celiac disease, colostomy care, and other acute and chronic GI diseases. From there, Paige furthered her medical experience by joining a larger healthcare system in Austin, Texas where she continued to specialize in the field of gastroenterology for an additional 4.5 years.  She greatly enjoys the outdoors, snowboarding, writing, and music. She joined Centers for Gastroenterology in September 2021.

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"I have been going to this practice for 18 years. I know I wouldn’t be here to write this review if it weren’t for Dr. Dunphy. She is an amazing doctor as well as an amazing woman. Absolutely the best in her field. I don’t know what I’d do without her."
-Stacey K.