Meet Our Leadership Team

Chief Executive Officer

Marc Toth brings over 25 years of leadership experience in the cardiovascular field to his role as Chief Executive Officer at Heart & Vascular Center of Arizona.

Throughout his career, he has focused on advancing patient care through innovation, operational excellence, and collaboration with physicians and healthcare partners.  Marc’s experience spans clinical operations, mergers and acquisitions, and strategic practice development.  His leadership continues to drive growth, strengthen physician partnerships, and enhance patient outcomes through new technologies and data-driven solutions.

Marc earned his Bachelor of Business Administration from the University of Michigan’s Ross School of Business and is a Certified Merger & Acquisition Advisor.

Front Office Manager

Jennifer Frey has worked in the medical field for 10 years. Born and raised in the Southwest, she graduated from Albuquerque High School in Albuquerque, New Mexico. She relocated to the greater Valley area in 1999.

After completing general business training at Mesa Community College, she began her medical practice experience. Jennifer has worked in several different medical specialty offices, including radiology, endocrinology, and vascular surgery. She has been part of the front office staff at Heart & Vascular Center of Arizona since 2005.

Jennifer has continued to grow in her knowledge of medical practice management and was promoted to the position of Front Office Supervisor in 2009. On a personal note, Jennifer’s favorite hobby is spending time with her two children.

Back Office Manager

Andrea Konde has worked in the healthcare field for over 13 years. Prior to joining the staff at Heart & Vascular Center of Arizona in 2007, she worked for Pennsylvania Cardiology Associates and Cardiology Consultants of Philadelphia in Philadelphia, PA.

Andrea has worked in the cardiology field since 2000 and was promoted to Back Office Supervisor at Heart & Vascular Center of Arizona in 2008.

Family Nurse Practitioner

Barbara Wysocki has been in the nursing profession since 1997, receiving her Master’s Degree in Nursing as a Family Nurse Practitioner from the University of Phoenix in 2016. Barbara has held positions as a clinical nurse manager as well as a case manager in palliative and hospice care. Most recently, she has provided care as a Certified Family Nurse Practitioner in the area of family medicine.

In addition, Barbara possesses an extensive background with St. Jude Medical as a Technical Service and Support Nurse, performing programming of implanted defibrillators and pacemakers, where she assumed a key role in the education of patients, providers, peers, and staff.

Imaging Manager

Patricia Moreno is a highly experienced medical professional with over 20 years of dedication to the healthcare industry. With 13 years of specialized expertise in performing ultrasounds, she has honed her skills in providing crucial diagnostic services. Since 2019, Patricia has been an integral part of the Heart & Vascular team, where she currently serves as the Medical Imaging Manager.

In this leadership role, she oversees imaging operations, ensuring high-quality patient care and efficient service. Her extensive background in medical imaging and patient care underscores her commitment to excellence, leadership, and compassionate service in the healthcare field.

West Clinic Back Office Manager

Victor Alamillo has worked in the healthcare field for over two decades. Before transitioning to cardiology in 2007, he gained experience as a medical assistant in internal medicine across various locations in West Phoenix.

Since then, he has dedicated his career to cardiology and, in 2013, was promoted to a leadership role, further demonstrating his expertise and commitment to patient care.