Our Team

Our team is comprised of a wide range of individuals, each sharing a common passion for patient care and medicine while bringing a diversity of interests and hobbies to the group.


Christine Lum Lung, M.D., SFHM, Chief Executive Officer/Medical Director

Dr. Lum Lung received her B.A. in Political Science from Stanford University and attended medical school at the University of Colorado. She completed her Internal Medicine residency training at the University of California at San Diego and was Chief Resident there prior to becoming a hospitalist in 2000. She has been the Medical Director of Northern Colorado Hospitalists since 2004. Her work interests include quality improvement and venous thromboembolic disease and prevention. She received the ABIM Focused Practice in Hospital Medicine certification in 2010. Outside the hospital she enjoys volleyball, hiking, and traveling. In 2014 Dr. Lum Lung was named as one of the Top Hospitalists by the American College of Physicians.

William Bennett Austin, D.O.

Dr. Austin graduated from medical school at the University of Health Sciences in Kansas City, Missouri. He completed his Internal Medicine Residency at Providence St. Vincent Medical Center in Portland, Oregon. He served an additional year there as a Chief Resident. In 2004 he moved to Fort Collins to help start Northern Colorado Hospitalists. His medical interest is in glycemic control in the hospitalized and critical care patient. Outside of work, he enjoys the Rocky Mountains with his wife and three children.

Beth Yoder, M.D., FHM

Dr. Yoder did her undergraduate work at Bethel College in North Newton, KS, and then did research in child and adolescent sleep and development through Brown University . She attended medical school at the University of Colorado and completed residency training at the University Hospitals of Cleveland (Case Western) before joining the Northern Colorado Hospitalists in 2004. Her interests include palliative care. When not working she and her husband enjoy traveling, cooking, contemporary art, and sculpture.

Jennifer Woelk, M.D., FHM

Dr. Woelk attended Brandeis University before attending the University of Connecticut Medical School. She received her Internal Medicine residency training at Maine Medical Center in Portland, Maine where she was chief resident from 2004-2005. Dr. Woelk medical interest include VTE diagnosis and Stroke management. Outside of work she enjoys swimming and being outdoors, especially on the beach.

Mary Spannring, M.D.

Dr. Spannring attended Marquette University for her undergraduate training and went on to medical school at the Medical College of Wisconsin. She attended residency in General Surgery at Mayo School of Medicine and followed this with her Internal Medicine residency at the Marshfield Clinic. She was Chief Resident at the Marshfield clinic following residency. She and her husband have two daughters.

Victoria Clipsham, M.D.

Dr. Clipsham attended the University of Oklahoma for undergraduate studies as well as medical school. She received her Internal Medicine training from the University of Tennessee at Memphis. Within medicine she has interests in hospital medicine as well as cardiology, pulmonology, and endocrinology. Outside of work she enjoys horseback riding, traveling, jogging, and reading.

Charmaine Reghitto, M.D.

Dr. Reghitto attended the Medical College of Ohio in Toledo and then came to Colorado to do her Internal Medicine residency at the University of Colorado. She and her husband enjoy spending time with their two children.

Christine Johnston, M.D.

Dr. Johnston grew up in San Diego and attended Georgetown University for her undergraduate studies. She went on to medical school at Jefferson Medical College in Philadelphia. She completed her Internal Medical Residency at Temple University Hospital and practiced General Internal Medicine in Philadelphia for 8 years before moving to Fort Collins in 2007 and transitioning to Hospitalist Medicine. In her free time Dr. Johnston enjoys biking, running, skiing and exploring Colorado with her husband, two children, and two dogs.

Piotr Filipowski, M.D.

Dr. Filipowski initially received his medical degree in Anesthesiology and Intensive Care Medicine in Poland. He worked as a physician there for 3 years before emigrating to the United States. He completed his residency in Internal Medicine at the Lutheran Medical Center in Brooklyn, New York and then worked as a hospitalist in New Jersey before moving to Fort Collins. He has two daughters and his wife is a pediatrician. His interests outside of medicine include hiking, biking and skiing.

Kate Knepper, M.D., FACP

Dr. Knepper received her BA in Human Biology from Stanford University in 1993. She graduated from Northwestern University Medical School in 1999, and from their residency program in 2002. She spent eight years in private practice in Fort Collins before joining Northern Colorado Hospitalists. Her medical interests are in palliative care. Outside the hospital, she enjoys hiking, cooking, gardening, and spending time with her husband and son.

Adam Mack, M.D.

Dr. Adam Mack received a Bachelor of Science in Animal Science from Colorado State University and completed medical school at the University of Nebraska. He went on to perform his residency in Internal Medicine at the University of Vermont, and has worked as a hospitalist in Washington state prior to joining Northern Colorado Hospitalists. His interests include spending time with his family, fly fishing, woodwork, and biking.

Nancy Terrell Maller, M.D.

Dr. Maller has been a practicing hospitalist since 2002 and has previously worked in Washington State, Idaho and most recently in Denver, Colorado. Dr. Maller obtained her Internal Medicine training at Yale University in New Haven, CT. In addition, she received her fellowship training in Rheumatology from Columbia Presbyterian in New York. When not working, Dr. Maller enjoys biking and spending time with her husband Mike.

Michael Osborn, D.O.

Dr. Osborn attended Pittsburg State University for undergraduate studies, followed by the Kansas City University of Medicine for medical school. He then completed a combined Internal Medicine and Pediatric residency at The University of Kansas Medical Center. Within medicine his interests are hospital medicine, quality improvement and medical informatics. Outside of work he enjoys trail running, mountain biking, camping, and fishing.

Sandhya Tadikonda, M.D.

Dr. Sandhya Tadikonda attended medical school in India and worked in a community hospital for 2 years before immigrating to United States. She received her Internal Medicine degree from Bronx Lebanon Hospital Center in Bronx, New York and shortly afterwards, moved to Colorado. She worked in Denver as a Hospitalist before moving to Fort Collins. She fell in love with Colorado because of the access to the outdoors. Her interests in medicine include stroke prevention and management, pharmacology and coding and documentation. Outside of medicine she enjoys cooking and spending quality time with her husband and son.

Kathrin Harrington, M.D.

Dr. Kathrin Harrington grew up in Switzerland and Oklahoma. She received her Bachelors of Science and Medical Doctorate from the University of Oklahoma. Dr. Harrington attended the University of Colorado, Denver for her Internal Medicine training with an emphasis on hospital medicine. Her medical interests are in quality improvement. In her free time, she enjoys a good book, knitting, hiking, skiing, and spending time with her husband.

Alex Myers, M.D.

Dr. Alex Myers is a native of Salt Lake City, Utah and completed his undergraduate training in Biology at Westminster College. He attended medical school at Saint Louis University School of Medicine. He completed residency training in Internal Medicine at University of Tennessee Health Science Center in Memphis. Dr. Myers enjoys spending time with his wife and two children, hiking, biking, and playing guitar.

Adam Ward, D.O.

Dr. Adam Ward graduated from the University of Illinois with a BS in biology and went on to medical school at the Chicago College of Osteopathic Medicine. He completed his residency at the University of Chicago (NorthShore) internal medicine program. In his spare time, Dr. Ward enjoys hiking and skiing in the mountains with his wife. They also love to travel whenever given the chance.

Kelly Buisseret, M.D.

Dr. Buisseret grew up in Longmont Colorado before attending Cornell University in Ithaca, New York for her undergraduate studies. She went on to medical school at the University of Colorado and completed internal medicine residency at Exempla Saint Joseph's Hospital in Denver. Her medical interests include palliative care medicine and end of life care. Outside the hospital she enjoys biking, hiking, making jewelry, enjoying Colorado's sunshine, and building a cabin.

Jennifer Beckman, M.D.

Dr. Beckman grew up in Cheyenne, WY and then went to Willamette University in Salem, OR where she received her BA in Biology. She completed her medical degree at Creighton University in Omaha, NE and her Internal Medicine Residency at the University of Utah. Outside of work she enjoys traveling and spending time in the outdoors hiking and skiing.

Greg Feldpausch, D.O.

Dr. Feldpausch attended Michigan State University for undergraduate training, completing a degree in Nutritional Sciences. He graduated from medical school at Kirksville College of Osteopathic Medicine in Kirksville, Missouri. He then worked in flight medicine for the US Air Force in Cheyenne WY, before returning to training and completing the Internal Medicine Residency at Oregon Health and Science University in Portland, OR. Outside of work he enjoys cycling and exploring the mountains with his family.

Peter Wallskog, M.D.

Dr. Wallskog received his education and training in Milwaukee, Chicago and Minneapolis. He provided care for patients in a traditional internal medicine practice in the Twin Cities for eight years before focusing on hospital medicine in 2003. After completing an MBA, he rediscovered his love of medicine and remains devoted to bedside care with concurrent systematic change. This Midwestern transplant is very excited to relocate to Colorado with his wife and high school sweetheart, Kate, and anticipates his three adult daughters will visit and join them in all of the outdoor activities along the Front Range. While not in the hospital, Dr Wallskog will be hiking with his wife, enjoying her fabulous cooking, or triathlon training.

Eric Hess, M.D.

Dr. Hess received his Bachelors of Science and Medical Doctorate from the University of Illinois and completed his residency at Evanston Northwestern Hospital. He served an additional year there as a chief resident and went on to practice 15 years of inpatient and outpatient medicine, first in Northern Illinois and then in Fort Collins. His interests include running and spending time with his family.

Robert Enguidanos, M.D., MPH

Dr. Enguidanos obtained his undergraduate degree from Washington University in St. Louis and then a Masters in Public Health at UCLA. His medical degree is from University of California, San Diego. He completed a combined Internal Medicine - Pediatrics residency at Good Samaritan Hospital in Phoenix. Following that IDr Enguidanos worked as a hospitalist in the Phoenix area for 15 years. He enjoys working with Spanish speaking patients. In his free time he likes to swim and hike.

Benjamin Ruckman, D.O.

Dr. Ruckman grew up in the Colorado mountains,and attended Colorado State University for undergraduate and graduate school, before attending Rocky Vista University for medical school. He received his Internal Medicine residency training at Parkview Medical Center in Pueblo, Colorado. Outside of work, he enjoys hiking and skiing.

Anupama Gandhe, M.D.

Dr Gandhe received her medical degree in India before moving to the United States in 2003. She then completed a Masters in Public Health from Western Kentucky University. She trained in internal medicine from Saint Vincent's Hospital in Worcester, Massachusetts and was a practicing hospitalist in MA from 2008 to 2015. She moved to Colorado in early 2016. Her medical interests include quality improvement, palliative care, and has immensely enjoyed working with medical residents. Dr Gandhe enjoys cooking, travelling, trying out new cousines and spending time with her husband and her busy toddler.

Alan Hathcock, M.D.

Dr. Hathcock received his BA in English and Sociology from the University of Texas at Austin in 2002 followed by two years of public health service in Peace Corps Nicaragua. He went on to complete his medical school and master's in public health degrees, as well as his Internal Medicine residency and Chief Resident year at Tulane Medical Center in New Orleans. His medical interests include quality improvement, critical care, global health and improving sepsis management. He has four kiddos and his wife is a pediatrician. Outside of the hospital, he loves to run, hike, ski, bike, fly-fish and spend time exploring all things outdoors with his family.

Lucie Uncapher, M.D.

Dr. Uncapher received her medical degree in the Czech Republic where she grew up. She completed her Internal Medicine Residency at Oakwood Hospital and Medical Center in Dearborn Michigan in 2016 and moved to Fort Collins shortly afterwards. She loves to spend her time outdoors and enjoys camping, hiking and skiing. She also plays piano and likes to travel.

Sarah Nystrom, M.D., MPH

Dr. Nystrom received her BS in Neurobiology from Allegheny College in Pennsylvania before spending a year teaching in Guatemala. She went on to earn her Masters in Public Health in Epidemiology from Emory University and worked for the Centers for Disease Control and Prevention in Atlanta until returning to Pennsylvania in 2009 to attend medical school at The Commonwealth Medical College. She completed her Internal Medicine residency at Tulane University in New Orleans in 2016. Her medical interests include nephrology, infectious disease, and international health. Outside the hospital she enjoys traveling, running, skiing, hiking, and exploring the Colorado outdoors

Morgan Cline, M.D.

Dr. Cline attended medical school at the Carver College of Medicine at the University of Iowa. She then completed her residency training in Internal Medicine at the University of Alabama—Birmingham. After finishing residency, she moved to Fort Collins to join Northern Colorado Hospitalists. In her spare time, she enjoys baking, trying out new restaurants, and enjoying time with her family.

Nathan Smith, M.D.

Dr. Smith grew up in San Antonio, TX. He earned his B.S. in Biology from Tulane University. He went on to earn his Medical Degree from the University of Texas Health Science Center in Houston. Following medical school, he was commissioned as an officer in the U.S. Army. He completed his Internal Medicine residency at Brooke Army Medical Center in San Antonio, TX. He served seven years as an Army physician, then spent three years as a Hospitalist in Colorado Springs prior to joining Northern Colorado Hospitalists. He enjoys spending time with his wife and twin girls, along with traveling and fly-fishing.

Kelly Mistry, M.D.

Dr. Mistry attended The College of William and Mary for undergraduate followed by Eastern Virginia Medical School. She completed Internal Medicine training at the University of Virginia in Charlottesville followed by a year as Assistant Professor at UVA. Then in a bid to move to Colorado, worked in Grand Junction for 6 years before relocating to Fort Collins. Outside the hospital she enjoys reading, yoga, hiking, camping, traveling, eating and spending time with her husband and son.

Marshall Davis, M.D.

Dr. Davis is a native of Colorado. He did his undergraduate training at the University of Northern Colorado and has a Masters in Public Health from the Colorado School of Public Health. He did research at the National Institutes of Health in Washington, D.C. and then attended medical school at the University of Nebraska Medical Center. He completed his residency training in Internal Medicine at the University of Iowa. Outside of work, he loves spending time with family and enjoys racquetball, skiing, biking and working outside.

Joseph Huguelet, M.D.

Dr. Joseph Huguelet grew up in Anchorage, AK but lived and worked in a number of places before receiving a B.S. in molecular biology from Western Carolina University. He graduated from the University of Washington School of Medicine and completed his Internal Medicine residency at Abbott Northwestern Hospital in Minneapolis, MN. He served an additional year there as a Chief Resident before joining Northern Colorado Hospitalists. Outside of work, he and his wife enjoy traveling, hiking, biking and camping.

Eduardo Cruz, M.D.

Dr. Cruz attended medical school in Ecuador. He completed his Internal Medicine Residency at the University of Iowa Hospitals and Clinics in 2014, after completing residency he worked for 4 years as a Hospitalist in Iowa. His medical interests include Hospital Medicine, Nephrology and Infectious Diseases. In his free time he enjoys reading, photography, running, biking and hiking.

Masumi Arakane, M.D.

Dr. Arakane grew up in Ecuador where she attended medical school. She completed her Internal Medicine Residency at the University of Iowa Hospitals and Clinics and then worked as a hospitalist in Iowa before deciding to move to Colorado. In her spare time, Dr. Arakane enjoys traveling, playing piano, cooking, spending time outdoors and hiking.

Jaime Dennehy, M.D.

Dr. Jaime Dennehy recieved her undergraduate degree in Biology at Queens University in Ontario then went on to Medical school at Ross University. She then completed her Internal medicine training at Mercer University in Georgia and was Chief Resident there. Together with her husband they moved to Fort Collins after residency to join Northern Colorado Hospitalists. Her interests outside of medicine include hiking with her dog, snowboarding and traveling.

Jay Dennehy, M.D.

Dr. Jay Dennehy grew up in Marshfield, Massachusetts before attending the University of Rhode Island for his undergraduate studies. He went on to medical school at Ross University and completed his internal medicine residency at Navicent Health Medical Center in Macon, Georgia. Outside of medicine he enjoys yoga, snowboarding, and hiking with his wife and his dog Mac.

  
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Monica Lambert, R.N.

Monica Lambert completed her nursing degree at Regis University. Her 17 years of nursing have been spent entirely at Poudre Valley Hospital. She enjoys running, reading and traveling with her daughter and her husband.

Denise Rex, R.N.

Denise Rex earned her nursing degree from the University of Northern Colorado in 1999. Her areas of interest in medicine include cardiac and infectious disease. Outside of work she gardens, does yoga, is learning the guitar and spends her free time with her two sons and her husband.

Carmen Brandt, R.N.

Carmen received her BSN at UNC in 1997. She has worked for Poudre Valley Hospital for 13 years. When she's not working she enjoys spending quality time with her husband Dan, 9 grandkids and 3 dogs. Her other interests include jogging, hiking, gardening and traveling with her husband.

Jenn Schneider, RN-BC

Jenn earned her Bachelor of Science in Biology at Pacific Lutheran University and then her Bachelor of Science in Nursing at the University of Northern Colorado. She has been working at Medical Center of the Rockies ever since. She loves spending time with her husband, two children, and three rescue dogs. In her free time she is an avid swimmer, snowboarder and enjoys SCUBA diving worldwide.

Cheryl Campbell, R.N.

Cheryl completed undergraduate studies at Colorado State University in Health and Exercise Science with a concentration in Health Promotion and went on for a nursing degree at Front Range Community College and has worked at PVHS since. She is certified in Orthopedic Nursing and enjoys patient education. She enjoys working out, traveling and spending time with her husband and daughter.

Amanda Hlawaty, R.N.

Amanda received her nursing degree from the University of Northern Colorado and has been a nurse within the Poudre Valley Health System since 1997. She is certified in critical care through the American Association of Critical-Care Nurses. She enjoys hiking, biking and skiing with her husband and 2 sons.

Sheila Kelly, R.N.

Sheila completed a Bachelor of Arts in Psychology in 2005 from the University of Northern Colorado and went on to get her Bachelor of Science in Nursing in 2007, also from the University of Northern Colorado. She has worked at both Poudre Valley Hospital and Medical Center of the Rockies ever since. When not at work, she enjoys traveling with her family, gardening, and spending time with her two children, Drake and Willow, as well as her 4 dogs.

Chanida Saunders, R.N.

Chanida received a Bachelor of Arts in Cell Biology in 2001 and a Bachelor of Science in Nursing in 2003 from the University of Northern Colorado. She has been working at Poudre Valley Hospital since 2004. Chanida is currently working on her Psychiatric Mental Health Nurse Practitioner degree at the University of Colorado Anschutz Medical Campus. When not working or doing school work, she enjoys reading, catching up on her TV shows, traveling, and spending time with her husband and their 2 children.

Deborah Peralez, R.N.

Deb graduated from the University of Colorado Health Sciences Center with her BSN in 1999 after working many years in the dental field. She has worked at University Hospital, PVH, and MCR. Outside of work she loves spending time with her husband, music, cooking , animals, traveling and outdoor activities.

Jenni Havel, R.N.

Jenni is a Fort Collins native and was actually born at Poudre Valley Hospital. She earned her Bachelors of Science degree in Psychology from CSU in 2004 then went on to get her Bachelors of Science in Nursing from UNC in 2007. She has spent her nursing career at both PVH and MCR. She is also Med-Surg certified through ANCC. In her free time she enjoys being outside, gardening and traveling with her husband and two kids.

Matt Wolf, R.N.

Matt is a veteran of the United States Air Force. He has worked as a nurse for Poudre Valley Hospital/Medical Center of the Rockies since July of 2000. Matt earned his Associates Degree in Nursing from FRCC in 2000 and his Bachelors of Science Degree in Nursing from Western Governors University 2013. When not working, Matt enjoys sports, driving his vintage 1969 Chevy Nova, and spending time with his wife Nicole and their twin children, Michael and Madison.

Isaac Kimani, R.N.

Isaac was born and raised in Kenya. He received my bachelors in Computer Information Systems and Management at CSU, in 2004, and later pursued my BSN from UNC (Greeley) in 2008. He graduated in 2016 from Grand Canyon University with my Masters in Healthcare leadership and administration. He worked as a float pool RN at both PVH and MCR. Outside of the hospital Isaac enjoys watching sports, spending time and traveling with my family.

Amanda Maples, Executive Administrative Assistant

Amanda relocated to Colorado from Northern California to join Northern Colorado Hospitalists Group. Previously she has worked in the Healthcare and Construction industries in Operations and Administration always with a focus on improved processes, workflows and systems. In her free time Amanda loves to cook and enjoys spending time with her son, traveling, hiking and seeking out new places to discover and explore.