Saint Joseph Hospital


The physician faculty members of the Internal Medicine Residency program at Saint Joseph Hospital program are all Board Certified in Internal Medicine and its subspecialties, and are recognized for their excellence in both clinical and academic medicine. The faculty maintains an open-door policy, allowing residents to meet informally should issues arise. Each faculty member is committed to the education of our physicians and students, preparing them for success in their future careers.

In addition to the core faculty, there are numerous clinical instructors who come from various practice settings to supplement medical education. These include office-based internists and subspecialists, hospital-based internists, and specialists from the Colorado Permanente Medical Group. Specialists also come from the University of Colorado and other academic institutions throughout the United States to teach and lecture in the program during the year.

Aaron J. Calderon, MD, FACP, SFHM

Program Director

Calderon_AaronPhotoDr. Calderon is a native New Yorker who moved to beautiful Colorado in 2002. He has worked at Saint Joseph Hospital since then in multiple roles and became Program Director in 2014. He is tremendously dedicated to teaching the house staff so that they can deliver the highest quality patient care. His interests include bedside ultrasound, procedural training, preventive medicine, evidence-based medicine, and mentoring. He has held several leadership positions at Saint Joseph Hospital, including founder of the hospital's GME Simulation/Procedural Skills Lab and founding Co-Chair of the hospital's GME Simulation Committee. On a national level, Dr. Calderon has been an editor for NEJM Journal Watch Hospital Medicine since 2007. He is a MKSAP 17 and 18 Committee member and a contributor/reviewer for Board Basics 4 and 5 and the American College of Physicians’ Board Prep Curriculum. He has been an editor/speaker for MedStudy and since 2014 the Co-Director for the MedStudy Internal Medicine Certification Board Review Course. In addition, he is very active in the American College of Physicians and the Association of Program Directors in Internal Medicine, where he served as Chair of the West Special Interest Group from 2006-2014. He has been a member of the Alliance for Academic Internal Medicine's Accreditation Committee, as well as, its subcommittee on Curricular & Teaching Aspects of Medical Education. Dr. Calderon is a Professor of Clinical Medicine at the University of Colorado where he has taught medical students the use of bedside ultrasound. He is a graduate of State University Health Science Center at Brooklyn, New York, and completed a combined residency at the New York Hospital-Cornell Medical Center and Memorial Sloan-Kettering Cancer Center.

Richard H. Miranda, MD, FACP, FAAP

Associate Program Director

Miranda_RichardPhotoDr. Miranda is our newest faculty member arriving in October 2014. He is a Colorado native, and moved back to Colorado in 2002 after his medical training. Dr. Miranda graduated from the University of Pennsylvania School of Medicine and completed his residency in Internal Medicine/Pediatrics at Baylor College of Medicine. He has been extensively involved with medical education and clinical care for the last 14 years. He is interested in providing the optimal clinical and educational experience for residents and students to provide the best care possible for patients, with a focus on the underserved. He has been acknowledged for his teaching receiving multiple awards including the University of Colorado Medical Student Teacher of the Year in the Department of Internal Medicine and the Clinician-Educator of the Year for the Mountain West Region of the Society of General Internal Medicine. He serves as a peer reviewer for the American Journal of Preventive Medicine, as well as he is involved with the American College of Physicians, and is Associate Clinical Professor of Internal Medicine at the University of Colorado. Dr Miranda has also been heavily involved in many community activities supporting the underserved, and was named the 5280 Magazine Editors Choice Top Humanitarian in 2004. He has also volunteered as a youth soccer coach for the last 8 years, and enjoys grilling, fly-fishing and tennis in his spare time.

Elizabeth Cyran, MD, MSPH, FACP

Director of Medical Student Services

175X140CyranDr. Cyran is an Associate Clinical Professor in the Department of Medicine at the University of Colorado Health Sciences Center. Dr Cyran coordinates medical student teaching and lectures, and is actively involved in medical housestaff education through precepting in the ambulatory clinic and attending on the inpatient services. Dr Cyran is a graduate of Albany Medical College and completed an Internal Medicine residency and Hematology-Oncology fellowship at the University Of Rochester School Of Medicine. After moving to Colorado, she obtained her MSPH at the University of Colorado Health Sciences Center where she was an Associate Professor of Medicine and Director of the University Medicine-Denver Internal Medicine Resident Clinic. Her interests includes doctor-patient communication, medical professionalism, and mentoring students and housestaff.

Cuong Doan, MD, FACP

Assistant Director of Inpatient Services

doancuongDr. Doan is an Associate Clinical Professor of Internal Medicine, University of Colorado and is actively involved in teaching on the inpatient services and also regularly attends the outpatient clinic. He is also one of the hospitalists of the Colorado Permanente Medical Group and facilitates educational goals between the residency and the volunteer faculty members. Dr. Doan is a graduate of the University of Colorado Health Sciences Center. He completed his Residency at Saint Joseph Hospital. His interests include evidence based medicine, cultural diversity and family dynamics. Dr. Doan's family owns and operates a Vietnamese grocery store and often brings in exotic treats.

Michael L. Fisher, MD, FACC, FAHA, FACP

Director of Medical Education, Cardiovascular Services

fishermichaelCurrently sharing directorship of the Cardiology Education program with Dr. William P. Nelson, Dr. Fisher has been on the staff of Saint Joseph Hospital since 2003. In 2005, he assumed duties as administrative director of the cardiology section and continues to fill this role. He also participates in, and helps to co-direct, the Heart Failure Governance Group for the Colorado Kaiser Permanente Group. Having recently stepped down as a full time member of the Kaiser Permanent Cardiology Department, he continues to participate with the Heart Failure clinical team and is helping develop a program for multi-disciplinary pre-discharge rounds to coordinate care and improve transitions for hospitalized CHF patients.. Prior to coming to Denver, he was Director of Clinical Cardiology and Professor of Medicine at the University of Maryland School of Medicine in Baltimore, Maryland. He maintains a volunteer faculty position with the University of Maryland after being on their full time staff for 30 years.

David Flitter, MD, FACC

Co-Director of Medical Education, Cardiovascular Services

flitterdavidDr. Flitter completed his Internal Medicine residency at Boston University Hospital and a fellowship in Cardiovascular Medicine at the University of Massachusetts. He came to Colorado in 1981 to join the Colorado Permanente Medical Group as an invasive cardiologist, a position he held until 2009. He is currently co-director (with Dr. Michael Fisher) of the weekly EKG course for medical students and house staff, including instruction in cardiac auscultation and clinical cardiology. Additionally, he attends in the Caritas Clinic twice a month.

Michael T. Morton, MD, FACP

Director of Inpatient Services

mortonmikeA graduate of Saint Louis University School of Medicine, Dr. Morton completed his Internal Medicine Residency at Saint Joseph Hospital, where he also served as Chief Resident. After spending five years in private practice in Manchester, New Hampshire, he returned to Saint Joseph Hospital as Director of Inpatient Services, and as an Associate Clinical Professor of Internal Medicine, University of Colorado. Dr. Morton is extensively involved in teaching on the inpatient services, acting as Medical Director for the Faculty Inpatient Team, and coordinating Residents' inpatient rotations. His interests include physical examination skills, teaching a logical diagnostic approach, use of computers in practice, and resident advocacy.

Steven Resnick, MD, FACC

Co-Director of Medical Education, Cardiovascular Services
Director Coronary Chronic Total Occlusion Program

Resnick_StevenPhotoDr. Resnick completed his residency, cardiology fellowship, and was Co-Chief Resident in Medicine at University of Maryland/Baltimore VA Medical Center Hospital System. He joined the Colorado Permanente Medical Group in 1982 where he practiced Interventional and General Cardiology until retiring, December 2013.

Post retirement he has been Director of the Chronic Total Occlusion program at NJH/SJH and Assistant Clinical Professor of Medicine at the University of Colorado School of Medicine. In 2015, he joined Drs. Fisher and Flitter as a Co-Director Of Medical Education, Cardiovascular Services where he teaches the EKG course/Cardiovascular Diagnostics class to medical students and residents.

Karen Weber, DO, FACP

Director of Outpatient Services

Weber_KarenPhotoDr. Weber is a graduate of the Kirksville College of Osteopathic Medicine, and completed her training in Internal Medicine at the John's Hopkins University/Sinai Hospital in Baltimore, Maryland. She practiced traditional Internal Medicine for seven years in the Denver metropolitan area before joining the faculty full time at Saint Joseph Hospital in 2009. Dr. Weber is the Medical Director of the Caritas Clinic, which is the ambulatory clinic run by the residents, where she is involved in several chronic disease management and quality improvement projects. In addition to quality improvement in both the in- and outpatient settings, she is also active in clinical research. Dr. Weber serves as Assistant Clinical Professor of Medicine at the University of Colorado Health Sciences Center and Rocky Vista University College of Osteopathic Medicine. Her other interests are mentoring, teaching quality improvement and chronic disease management through teamwork, women's health, and faculty development.


Jacob Ludwig, DO

Chief Resident for Internal Medicine

Dr. Ludwig has been in Colorado since starting medical school at Rocky Vista University College of Osteopathic Medicine in July of 2010. There he earned his D.O. degree and completed a fellowship in osteopathic manipulative medicine, graduating in 2015. While in medical school he also earned an M.B.A. in Healthcare Administration. In June of 2018, Dr. Ludwig completed his internal medicine residency at Saint Joseph Hospital, and has been the chief medical resident since July of 2018. Originally from Minnesota, he is married to his high school sweetheart and together they have three beautiful daughters ages 5, 4, and 2. As the chief resident, he functions as a support to residents in every way, as a liaison between faculty and residents, an attending on the inpatient service and in the outpatient clinic, an administrator with duties that include scheduling of residents and conferences, an ambassador of the program for applicants, medical students, specialists and attendings, and an educator focused on teaching clinical medicine, osteopathic and musculoskeletal medicine, medical ethics, the business of medicine and wellness.  He is an active member of the ethics committee and serves as an ethics consultant, and has established an osteopathic manipulative treatment clinic for educating residents in the outpatient setting. Dr. Ludwig has significantly expanded and individualized the wellness curriculum to include rotation specific and daily, weekly and monthly wellness activities, as well as an annual wellness retreat. Broad wellness focus areas include the importance of laughter and fun, sunshine and fitness, friendship, work-life balance, positive reinforcement, mindfulness based stress reduction, resilience training, and how to maintain an appreciation for a career in medicine. He plans to pursue a career in various capacities after completing the chief year including hospital medicine, integrative/osteopathic medicine, medical education, and medical administration. Dr. Ludwig would love to hear from you, please do not hesitate to reach out to him.



National Jewish Health | Saint Joseph Hospital Educational Leaders

Kenneth Lyn-Kew, MD

Director of Medical Education, National Jewish Health

LynKew_KennethPhotoDr. Lyn-Kew is the Section Head of Critical Care Medicine for National Jewish Health where he is an Associate Professor in the Division of Pulmonary, Critical Care & Sleep Medicine. He is also an Associate Professor in the Division of Pulmonary Sciences and Critical Care Medicine at the University of Colorado, Anschutz Medical Campus. He attended Saint Louis University for medical school and completed his internal medicine residency at Georgetown University Hospital. This was followed by a fellowship in Pulmonary and Critical Care Medicine at the University of Michigan Hospitals and Health Centers

Dr. Lyn-Kew has been with National Jewish Health, recognized as the top respiratory center in the United States over the last 100 years, since 2009. Dr. Lyn-Kew's practice specializes in the care of the critically ill. Dr. Lyn-Kew’s interests include critical care ultrasonography, ARDS, sepsis and processes of critical care delivery. Dr. Lyn-Kew is a member of the Critical Care Steering Committee at the American College of Chest Physicians.

Sign up for our e-newsletter!

Get tips to help you manage your family's health, options to boost your fitness and advice to live your best life.