World Class Providers

We pride ourselves in personalized medicine and value the shared decision-making model, where you are involved in your care just as much as we are.

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Our Providers



Frank Laws


Electrophysiologist & Interventional Cardiologist

Dr. Frank A. Laws is one of the few physicians in the United States who specializes in both interventional cardiology and electrophysiology. As a “hybrid” physician, Dr. Laws offers patients with both cardiac arrhythmias and obstructive coronary artery disease the most comprehensive care in the region. Dr. Laws completed his cardiology fellowship and his subspecialty fellowship in interventional cardiology at the University of Texas Houston Medical School. In 2001, while at the University of Texas he received a special commendation from the University of Texas board of regents for being the first American College of Cardiology (ACC) Merck Cardiology Research Fellow. As an assistant professor in clinical internal medicine at the University of South Carolina, he began an interventional cardiology program at the WJB Dorn VA Medical Center in Columbia, SC. While at WJB Dorn, he helped to pioneer a cardiac program without cardiovascular surgical back up. Dr. Laws was recruited in 2006 to Valley View to develop the Heart and Vascular program, including the Heart catheterization lab. Most recently, Dr. Laws embarked upon a secondary year-long fellowship in 2014 at a training program with the Tufts University School of Medicine to provide better care for patients with cardiac arrhythmias. His additional education has raised the level of expertise so that Valley View is now able to offer advanced cardiac services.


John R. Mehall


Director of Cardiothoracic Surgery

Dr. Mehall attended Yale University and Southern Methodist University earning degrees in Philosophy and Biology, before graduating from University of Texas-Houston Medical School. He did his General Surgery training at the University of Texas, Pediatric Surgery at Arkansas Children's Hospital and Cardiothoracic Surgery training at the University of Cincinnati. Dr. Mehall received extensive training in minimally invasive cardiac surgery and atrial fibrillation surgery, including a visiting fellowship at Herzzentrum in Leipzig. He has been at the forefront of the technologies and procedures associated with aortic and mitral valve repair and minimally invasive surgery, with 25 national meeting podium presentations and publishing regularly in a variety of journals and venues. He founded the CT Symposium (2006-2012), a training program for fellows focusing on minimally invasive surgery and new technology, and regularly conducts training courses for surgeons having trained over 200 surgeons in valve surgery approaches and techniques. In addition to clinical practice, Dr. Mehall founded and manages Cardiac & Thoracic Surgery Associates, the largest independent cardiothoracic surgical group in Colorado, is the Chief of Cardiothoracic Surgery for Centura Health in Colorado and Kansas, and is the Executive Co-Chair of the National Cardiac Surgery Committee for Catholic Health Initiatives. He is board certified by the American Board of Surgery and the American Board of Thoracic Surgery, and is a Fellow of the American College of Surgeons and the American College of Cardiology. He has also been voted Top Doc by peers every year since 2010.

Dr. Mehall enjoys spending time with his family and in the outdoors. He is actively involved in the Boy Scouts of America, the Pikes Peak or Bust Rodeo Foundation, Catholic Charities, and other community organizations.


Patrick D. Rudersdorf


Cardiothoracic Surgeon

Dr. Rudersdorf, a native of Omaha, NE, received his undergraduate degree from Creighton University and graduated with honors with a bachelor of science in Biology. He completed his medical school education at Creighton University School of Medicine. He matched into the general surgery training program at the University of California, Irvine. During his time at UC Irvine, Dr. Rudersdorf’s research focus was on cardiothoracic surgery; specifically trends and outcomes in cardiac surgery in the state of California. His work was presented at national and international meetings and is published in medical journals. Following his successful completion of general surgery residency, Dr. Rudersdorf received his cardiothoracic training at the University of California, Los Angeles (UCLA), one of the nation’s top cardiothoracic surgery training programs. Dr. Rudersdorf was voted 2018 Top Doc by his peers.
When not at work, Dr. Rudersdorf enjoys spending time with his wife, a perinatologist physician, and his two sons. He enjoys running, golfing, skiing, and travel.


Ronald E. Stevens



Dr. Ronald E. Stevens graduated magna cum laude from Pacific Union College in biophysics before receiving his medical degree from Loma Linda University. In 1986, Dr. Stevens joined the American Board of Anesthesiology specializing in the total perioperative care for complex cardiac patients. He has obtained numerous certifications and specialized competencies in transesophageal echocardiography (TEE) along with holding faculty and adjunct positions at the University of Colorado School of Medicine. Working with the most preeminent cardiac surgeons in the Metro Denver area, Dr. Stevens mastered the technical skills to safely navigate patients through large open heart procedures to the advancement of minimally invasive surgeries. More recently, he has focused on atrial fibrillation surgery and is an instrumental member of the FixAFib team. Dr. Stevens is married to Cassandra and they have four children. Complimenting his exactness in medicine, Dr. Stevens navigates the skies as an airline transport pilot with multi-engine rating.

A brief description.

Afib Coordinators


Julianne Doherty


AFib Coordinator

Julianne completed her Physician Assistant training and Master’s of Science at the University of Colorado Health Sciences Center in 2004. In 2007, she moved to the Roaring Fork Valley to join Dr. Frank Laws at the Heart and Vascular Center at Valley View Hospital. As part of her dedication to continual professional development, she completed a rigorous certification process through the National Lipid Association to become a Clinical Lipid Specialist in 2009. In addition to her clinical practice, she works closely with Dr. Laws as the Atrial Fibrillation Coordinator to help patients navigate the diagnostic and treatment process for procedural and non-procedural interventions. Special areas of interest include atrial fibrillation, heart disease prevention, lipid management, and risk factor modification. Julianne enjoys educating patients and empowering them to be active participants in their health care.


Kim M. Williams


Outcomes Researcher

Kim M. Williams, MPH tracks the effectiveness of arrhythmia care through the field of outcomes research. With honors, Kim received her bachelor of science from The University of Central Florida and later graduated summa cum laude from The Colorado School of Public Health with a Master’s of Public Health. Kim strongly believes the medical outcome should include the patients’ perspectives and desires. This belief is complemented by her analytic ability to assess registries, examine large data sets and improve the quality of healthcare delivery systems positions her to effectively facilitate the FixAfib platform. Kim has penned numerous peer reviewed publications and crafted the outcomes protocol to support our niche AFib program – The NEXUS Registry. This outcomes registry combines national cardiovascular data registries with long-term patient reported outcomes. Routinely, Kim submits peer reviewed scientific abstracts about our program, always monitoring the fiduciary use of health care dollars and, more importantly ensuring the patients’ values and preferences are heard. Outside of work she manages three boys, her husband Sam and two sons, Colton and Preston. Kim appreciates all things aesthetic and thought provoking, she finds the most beauty in the natural world.



Nick Miller



Nicholas M. Miller, PhD, is a perfusionist at the Heart & Vascular Center at Valley View. As a cardiovascular perfusionist, Dr. Miller manages the physiological and metabolic needs of Valley View’s cardiac surgical patients, so that the surgeons of the Heart & Vascular Center may operate on a still, non-beating heart during certain procedures. Dr. Miller is responsible for the management of circulatory and respiratory functions of a patient, allowing Valley View’s cardiac surgeons to focus on the actual surgical procedure and less on the immediate needs of a patient. This is accomplished through the utilization of the heart–lung machine, as well as its associated components of an oxygenator, filters, reservoirs and tubing. He has multiple U.S. patents. He has the only patented vacuum venous assist cannulae in the U.S. and is currently working on a “bloodless cardiovascular circuit”, this uses pediatric technology on adult patients. This circuit minimizes the likelihood of patients requiring homologous banked blood.

A brief description.