Cardiothoracic Surgery

LVH-P PA Physicians  

Raymond L. Singer, MD, MMM

Raymond Singer, MD ranks around the top 10 cardiothoracic surgeons inPennsylvania for valve surgery volumes and quality outcomes. He has performed more than 7,000 heart and lung operations during his 25-year career at Lehigh Valley Health Network. He specializes in complex value surgery and trained in France with Alain Carpentier who is regarded as one of the world’s foremost experts on complex heart valve repair.

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Kelly M. Wanamaker, MD

Kelly M. Wanamaker started her career as a nurse but inspired by the heart surgeons she worked with, chose to return to school to become a surgeon. She believes in living a healthy lifestyle and setting a good example for patients and as an avid runner, has completed 10 marathons. She is part of the Lehigh Valley Heart Institute’s Heart and Vascular program for Women.

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LVH-P PA Providers  

Rob Danges, PA-C

As a Certified Physician Assistant, Mr. Danges provides patients with a broad array of cardiovascular and thoracic surgery services. Working in collaboration with the practice physician, he delivers preoperative, intraoperative and postoperative care, including a wide range of surgical, ICU and bedside interventional procedures. Mr. Danges earned his Physician Assistant Certificate from Hahnemann University in Philadelphia and is certified by the National Commission on Certification of Physician Assistants.

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Jon Sartori, PA-C


Mr. Sartori is a Certified Physician Assistant, providing patients with a wide range of cardiovascular and thoracic surgery care. Among the services he provides in collaboration with the practice physician are preoperative and postoperative care management, assisting with surgeries and other highly specialized procedures. Mr. Sartori earned his Physician Assistant Certificate from Cornell University Medical College in Ithaca, NY and is Fundamental Critical Care Support certified. He is a member of the Society of Critical Care Medicine and the Association of Physician Assistants in Cardiovascular Surgery.

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Geno Zini, PA-C

Mr. Zini is a board-certified Physician Assistant practicing at Lehigh Valley Hospital–Pocono’s ESSA Heart and Vascular Institute. He works with physicians in the cardiothoracic specialties and assists with patient care. Mr. Zini is experienced in managing patients with a wide variety of heart conditions. He received his Bachelor of Science in exercise science from Bloomsburg University in Bloomsburg, PA. He then earned a Master of Medical Science in Physician Assistant Studies from Salus University in Elkins Park, PA. He is a member of the American Academy of Physician Assistants.

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