With Van Diest Medical Center, your heart is in the right place.

Van Diest Medical Center proudly provides expert cardiac care to the people of Hamilton County. Committed to your cardiovascular health, Cardiologist Dr. Sumit Sahgal and Nurse Practitioner Alex Doyle with the Iowa Heart Center offer easy access, quality care close to home.


Sumit Sehgal, MD

Dr. Sumit Sehgal was born in India and grew up in New York. He is multilingual, speaking English, Hindi, Punjabi, and now taking classes in medical Spanish. He completed his Internal Medicine residency from University of Nevada School of Medicine (UNSOM) and cardiology fellowship from University of Nevada Las Vegas (UNLV) School of Medicine, where he was also the chief cardiology fellow.

Dr. Sehgal is a strong supporter of medical education and has a passion for teaching. Outside of work, he loves to travel and spend time with his family. Dr. Sehgal is board certified in Echocardiography, Nuclear cardiology, Cardiac CT, and Peripheral vascular ultrasound. He practices at Iowa Heart Center’s Fort Dodge clinic.


Alexandria Doyle, ARNP

Alexandria Doyle, ARNP is a native of Northwest Iowa, growing up in the small town of Calumet, Iowa. Prior to joining Iowa Heart Center, while obtaining her BSN degree, she worked as a nursing assistant at the University of Iowa. After graduating with her BSN from the University of Iowa and passing boards, she worked as a Medical-Surgical nurse and ICU nurse in Cedar Falls and Waterloo, Iowa.

Alex then joined the Iowa Heart Center team at the Fort Dodge office in January 2014. Initially she worked as an office nurse, later transitioning to the Cardiology Nurse Practitioner role in November 2015 after earning her Masters of Science in Nursing and Family Nurse Practitioner degree from Allen College in Waterloo, Iowa. Alex is board certified by the American Academy of Nurse Practitioners as a Family Nurse Practitioner.

To schedule an appointment, please call 515.574.6840.