Our Staff


Marc L. Tenzer, M.D., FACC, FACP

Marc L. Tenzer, M.D., FACC, FACPDr. Tenzer is an interventional cardiologist specializing in coronary angioplasty and stenting. He is Board Certified in Internal Medicine and Cardiology. He joined North Shore Cardiology Consultants in 1988. A graduate… More about Us

Otakar Sroubek, M.D., FACC

Otakar Sroubek, M.D., FACCDr. Sroubek is an interventional cardiologist who specializes in coronary and peripheral arterial angioplasty and stenting. He is Board Certified in Internal Medicine and Cardiology. Dr. Sroubek joined North Shore Cardiology… More about Us

Kelly Dietrich Practice Administrator

Staff | Practice AdministratorKelly oversees the operations and finance aspects of the practice, in addition to managing the staff. She holds several certificates, including: CMOM (Certified Medical Office Manager), CPM (Certified Practice Manager) and CHRS (Certified Human Resources Specialist), and has over thirty years experience in the healthcare profession.

Diana Dospod Billing Supervisor

Staff | Billing SupervisorDiana is in charge of billing and supervision for the accounts/receivables function for the practice. In addition to keeping current with government mandates, she ensures the maximum reimbursements for services rendered to our patients.

Diana holds the distinction of being with the firm the longest, and actually started the practice, along with Dr. Fisher. She is the heart and soul of NSCC and is a proud wife and mother of two adult daughters.

Joanna Lula Cardiac Tech

Staff | Cardiac TechJoanna is a Cardiac Technician and has been with NSCC for fourteen years. She received a certificate in cardiac care from Cardiovascular Credentialing International, and has been working in the industry for over seventeen years. Prior to joining NSCC, Joanna worked for Resurrection Hospital on the telemetry floor monitoring cardiac rhythms. One of Joanna’s key responsibilities is the monitoring and tracking of implanted cardiac devices.