Gordon F. Gibbs, MD and his wife Erin Reilly Gibbs opened the first American Vein & Vascular Institute (formerly Rocky Mountain Vein Institute) in 2009 located in Pueblo, Colorado. The network of vein centers has since grown to be the largest in Colorado.

Timothy Cawlfield, MD, is a phlebologist specializing in the treatment of vein disease at American Vein & Vascular Institute. As a general practitioner licensed to practice medicine in Colorado with specialties in vascular disease and family medicine, Dr. Cawlfield has a hospital affiliation with Parkview Medical Center in Pueblo, Colo.

Kendra Duckstein, AGNP, RN is a phlebologist at American Vein & Vascular Institute. Duckstein is also a board-certified Nurse Practitioner with more than 16 years of experience in direct patient care as a RN.

Nicole Gundersen, is a phlebologist at American Vein and Vascular Institute. Gundersen received her Masters of Medical Science in Physician Assistant Studies from Keiser University. Gundersen received her training through the fellowship program developed and led by Dr. Gordon Gibbs, American Vein & Vascular Institute Founder and Chief Medical Executive.

Kristi McCleary, is a phlebologist at American Vein & Vascular Institute. McCleary received her phlebology training through the fellowship program developed by Dr. Gordon Gibbs, American Vein & Vascular Institute Founder and Chief Medical Executive.

Christopher Coram, AGACNP, is a phlebologist at American Vein & Vascular Institute. Coram received his training through the fellowship program developed and led by Dr. Gordon Gibbs, American Vein & Vascular Institute Founder and Chief Medical Executive.

Sarah K. Roark MSNL, AGACNP-BC is a phlebologist at American Vein & Vascular. Roark has been working in healthcare since 2005. She practiced as a Cardiothoracic ICU, Cath Lab, ER, and General ICU RN in Oklahoma, Florida, and Colorado.

Audrey L. Anderson, MSN, RN, ACNPC-AG, CEN, CCRN is a phlebologist at American Vein & Vascular. Anderson has been working in healthcare since 2011. She completed her Acute Care Nurse Practitioner/Masters Degree in Nursing from Purdue University, and earned her Acute Care Nurse Practitioner Certified Adult/Gerontology (ACNPC-AG) distinction through the American Association of Critical Care Nurses (AACN).

Jessi Hartzler, MS, PA-C, is a phlebologist at American Vein & Vascular Institute. She earned a Bachelor of Science in Kinesiology and Exercise Science from the University of Arkansas, and a Master of Science in Physician Assistant Studies from University of Missouri – Kansas City.