Richard Marcus, MD

Dr. Marcus, a native of South Africa, received a medical degree from the University of Witwatersrand Medical School in Johannesburg. He then completed surgery and internal medicine internships at Johannesburg General Hospital; and senior internships in surgery and anesthesiology, and a residency in internal medicine at the Johannesburg Group of Teaching Hospitals.

After two years of military service, Dr. Marcus completed a cardiology research fellowship at the University of Witwatersrand; a clinical cardiology fellowship at the Johannesburg Group of Teaching Hospitals; and a clinical/research fellowship at the University of Chicago Medical Center.

He has held numerous academic and clinical appointments, and has published extensively in the areas of valvular heart disease, left ventricular function, ventricular-arterial coupling and Doppler echocardiography. He joined Iowa Heart Center in 1996.

Dr. Marcus is board certified in cardiology and echocardiography, and currently practices at Iowa Heart Center’s West University clinic in West Des Moines.

Dr. Richard Marcus is one of the nation’s leading experts in echocardiology – the use of echocardiography to diagnose heart disease.

Specialty: Cardiology, Echocardiology
Contact: 641.932.1678
Premed: Keokuk Community College | West Burlington, IA
Medical Education: University of Witwatersrand Medical School | Johannesburg, South Africa
Internship: Johannesburg General Hospital | Johannesburg, South Africa
Residency: Johannesburg Group of Teaching Hospitals | Johannesburg, South Africa
Affiliated: Iowa Heart Center’s West University Clinic | West Des Moines, IA

Richard Marcus, M.D.

Rachel Onsrud, ARNP

Rachel Onsrud, ARNP, a native of Marshalltown, joined Iowa Heart Center in 2004.

Rachel holds an undergraduate degree from Grand View College in Des Moines, and her nurse practitioner degree from Clarkson College in Omaha.

Prior to joining Iowa Heart Center, Rachel served with the heart failure clinic at Iowa Lutheran Hospital, and the women’s heart center at Iowa Methodist Medical Center, both in Des Moines.

Rachel is certified by the American Academy of Nurse Practitioners. She serves patients at Iowa Heart Center’s West University office in West Des Moines.

Specialty: Cardiology
Contact: 641.932.1678
Premed: Grand View College | Des Moines, IA
Masters of Science in Nursing: Clarkson College | Omaha, NE
Affiliated: Iowa Heart Center’s West University Clinic | West Des Moines, IA

Rachel Onsrud, A.R.N.P.