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About Us

At the Phoenix Heart Center, our team is experienced in providing exceptional patient care for a wide range of cardiac medical conditions. Many of the providers have extensive research and teaching experience.

Our Providers

Richard R. Heuser, M.D., FACC, FACP, FESC, FSCAI

Richard R. Heuser, M.D., FACC, FACP, FESC, FSCAI

Board-certified with the American Board of Internal Medicine, Dr. Heuser is an internationally-recognized cardiologist, inventor, educator and author.
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Sina Nafisi, M.D., FACC

Sina Nafisi, M.D., FACC

Sina Nafisi, M.D., FACC, is board-certified and fellowship-trained in interventional cardiology and peripheral vascular disease.
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Hassan S. Makki, D.O., FACC

Michael S. Makki, D.O., FACC

Michael S. Makki, D.O., FACC, is board-certified in internal and cardiovascular medicine.
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Ajay Mhatre, M.D.

Ajay Mhatre, M.D.

Dr. Mhatre is a board-certified interventional cardiologist, specializing in acute and chronic heart diseases.
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Patsy McElmeel, A.N.P.

Patsy McElmeel, A.N.P.

Patsy McElmeel, A.N.P., is a highly skilled and experienced nurse practitioner providing care for Phoenix Heart Center.
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Karen Waters, FNP-C

Karen Waters, FNP-C

Karen Waters, FNP-C, is a a highly skilled and experienced board-certified nurse practitioner providing care for Phoenix Heart Center.
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Member of Physician Group of Arizona, Inc.Official Healthcare Partner of the Phoenix Suns and Phoenix Mercury
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