- 2015-19 Health Network Laboratories Board of Directors, Allentown, Pennsylvania
- 2015-18 Society of Thoracic Surgeons Political Action Committee Board of Advisors
- 2016-18 Society of Thoracic Surgeons Workforce on Health Policy, Reform, and Advocacy
- 2017-18 Society of Thoracic Surgeons Workforce on Practice Management
- 2017-18 Principle Investigator: Transcatheter Aortic Valve Replacement with the Medtronic Transcatheter Aortic Valve Replacement System in Patients at Low Risk for Surgical Aortic Valve Replacement
- 1999-Present National Cancer Institute Clinical Investigator, CTEP Investigator
Dr. Singer has been in practice since 1992 and has, to date, performed over 8000 surgeries. His practice interests include complex valve, coronary and aneurysm surgery, as well as prevention and treatment of lung cancer.
