Mark Johns, MD, FACC
Dr. Johns founded Cardiology of Virginia in 1998. In his 20+ years of practice, he has been consistently recognized by his peers for his professionalism and dedication to improving healthcare in Central Virginia. To his patients, he is an attentive and caring health care provider. Dr. Johns is committed to timely and efficient care for his patients and has been recognized year after year as one of "Richmonds Top Docs" by Richmond Magazine and "Best Bedside Manner" for cardiology by Our Health Magazine.
Board Certification: Cardiovascular Disease, Internal Medicine
Edson De Guzman, MD, FACC
Dr. De Guzman joined Cardiology of Virginia in 2001. He is well respected by peers and patients alike for his humor, diligence, intellect, and calm demeanor. Dr. De Guzman is a specialist in echocardiography and nuclear medicine.
Board Certification: Cardiovascular Disease
Kaitlin Delgado, MSN, BSN, RN
Katie joined COV in 2018. She has spent the majority of her nursing career working with cardiac patients at CJW Medical Center and COV. She is driven to improve patient outcomes in cardiovascular disease.
Board Certification: Family Nurse Practitioner
Michael J. Menen, MD, FACC
Dr. Menen joined COV in 2025. He has over 20 years of experience in cardiovascular care and healthcare leadership. He practiced invasive cardiology for more than 15 years in Oregon and Washington and has deep expertise in complex cardiac conditions. Dr. Menen has served in senior leadership roles including Chief of Medicine, Chief of Staff, and Chief Medical Officer, focusing on improving care quality, outcomes, and delivery.
Board Certification: Cardiovascular Disease