School of Medicine

Cardiothoracic Surgery

Advanced Practice Clinician

Scott A. Tatum, PA-C

Scott came to the University almost 9 years ago from private practice. As a trainer and consultant for Endoscopic Vein harvesting, he has effectively introduced and incorporated new technology and procedures into the University healthcare system. As the senior physician assistant in the division of cardiothoracic surgery, Scott has 17 years experie... Read More

Specialties: Cardiothoracic Surgery, Physician Assistant

Email: tatumsclan@msn.com

Phone: 801-585-6740

Thomas Lewis, PA-C

Thomas has worked in the health care field for many years.  Prior to becoming a Physician Assistant in 2009, he worked as a Critical Care Paramedic.  He has been a Cardiothoracic Physician Assistant since becoming a PA in 2009.  Thomas offers exceptional experience in the operating room, and in all aspects of patient care, from minimally invasive h... Read More

Specialties: Cardiothoracic Surgery, Physician Assistant

Email: thomas.lewis@hsc.utah.edu

A. Cole Johnson, PA-C

Cole has been a Certified Physician Assistant since 2010.  He has worked in Cardiothoracic Surgery for five years and is expert in endoscopic harvesting techniques.  Cole has brought with him experience in quality patient management.  He is an excellent diagnostician and truly cares for his patients.  He is certified by the National Commission on C... Read More

Specialties: Cardiothoracic Surgery, Physician Assistant

Email: u0084774@utah.edu

Dennis Kim, PA-C

Dennis joined the Cardiothoracic Service at University of Utah as a new graduate Physician Assistant in 2015.  He has gained experience, and has become proficient in pre and postoperative patient care.  Dennis has earned multiple degrees at the University of Utah including Bachelor of Science degrees in Chemistry, Biology and Computer Science.  He ... Read More

Specialties: Physician Assistant

Email: dennis.kim@hsc.utah.edu

Catherine Mihlfeith, PA-C

Catherine has been a Physician Assistant since 2010.  She has been at the University of Utah in Cardiothoracic Surgery since 2012.  Catherine provides exceptional care, serving patients in the outpatient clinic and in the hospital after surgery.  She earned her Bachelor of Science degree in Biology from the University of Utah.  She went on to earn ... Read More

Specialties: Cardiothoracic Surgery

Email: catherine.mihlfeith@hsc.utah.edu

Dustin J. Siler, PA-C

Dustin has been a Physician Assistant for two years and joined the University of Utah Cardiothoracic Surgery team last year.  He currently works with the Thoracic team at the Huntsman Cancer Institute.  Dustin is a valuable member of the team and offers his skills in the operating room and taking care of patients perioperatively.  He earned his Mas... Read More

Specialties: Cardiothoracic Surgery, Physician Assistant

Email: dustin.siler@hsc.utah.edu

Phone: 801-585-9682

Nathan C. Sontum, PA-C, MHS

​Nathan earned his Masters degree in Health Sciences from Drexel University in 2009.  Since 2010 he has been at the University of Utah and the VA Hospital working as a Certified Physician Assistant in Cardiothoracic Surgery.  During his tenure on the Cardiothoracic Service, Nathan has offered exceptional patient care and education.  He is skilled i... Read More

Specialties: Cardiothoracic Surgery

Email: u0349122@utah.edu

Phone: 801-581-5311

Marvin R. Stoddard, BS

Specialties: Cardiothoracic Surgery

Email: mkstoddard@juno.com

Phone: 801-581-5311

Erik P. Sivertsen, PA-C

Erik joined the Cardiothoracic Service at the University in 2017.  He has brought with him four years of cardiothoracic experience from private practice in Asheville, North Carolina.  Erik is proficient in advanced minimally invasive techniques.  He has over seven years experience as a physician assistant.  Prior to becoming a Physician Assistant, ... Read More

Specialties: Cardiothoracic Surgery, Physician Assistant

Email: erik.sivertsen@utah.edu

Phone: 801-581-5311

Leland Collard, PA-C

With over 20 years experience as an Advanced Practice Clinician, Ike joined the Univerisity of Utah Cardiothoracic service in 2017.  He is a pioneer in minimally invasive techniques for vein and radial artery harvesting in the state of Utah.  He continues to provide expert minimally invasive harvesting skills and techniques.  Ike returns to Utah fr... Read More

Specialties: Cardiothoracic Surgery

Email: ike.collard@hsc.utah.edu

Phone: 801-581-5311