Dr. Richard I. Blum is a cardiologist in San Diego, California and is affiliated with Scripps Mercy Hospital. He received his medical degree from Harvard Medical School and has been in practice for more than 20 years. Dr. Richard I. Blum has expertise in treating heart failure, hypertension & high blood pressure, among other conditions - see all areas of expertise. Dr. Richard I. Blum accepts Blue Cross - see other insurance plans accepted.