New Search 623526 Practice accepting new patients. Mark Villalon MD (707) 253-8280 Primary Specialties Cardiology Medical Groups & Affiliations St. Joseph Health Medical Group Primary Office Address: St. Joseph Health Medical Group 3443 Villa Lane Suite 2 Napa, CA 94558 Phone: (707) 253-8280 Fax: (707) 253-7023 Recommend this Physician Request an Update for this Physician Get Directions HealthCalling Articles 5 Ways This Cardiologist Keeps His Own Heart Healthy Physician Bio Dr. Mark Villalon is an interventional cardiologist who believes that the best way to achieve optimal cardiovascular health is through preventive measures like diet, exercise and managing cholesterol and blood pressure. He specializes in the management of complex coronary artery disease and valvular heart disease, in addition to general cardiology, such as heart failure and atrial fibrillation. He is a member of the Alpha Omega Alpha Honor Medical Society. When Dr. Villalon is not seeing patients, he enjoys a variety of outdoor activities with his wife and their young children.