Community Health Network

Ranked among the nation's most integrated healthcare systems, Community Health Network is Central Indiana's leader in providing convenient access to exceptional healthcare services, where and when patients need them—in hospitals, health pavilions, workplaces, schools and homes.

Explore Community

Close

Cardiologists

Community Heart and Vascular Hospital's board-certified cardiologists provide a wide variety of cardiology services, including interventional cardiology. Our facilities are fully accredited in nuclear and cardiac imaging to help identify heart disease and disorders, assess heart function, and pinpoint the location of a heart attack.

Our onsite testing centers and pacemaker/defibrillator clinics ensure more seamless care when you need it. And to better serve our patients, we offer lipid screenings and Coumadin checks with follow-up so there are no extra trips to the hospital or outpatient clinics. Our cardiologists believe in the one-on-one patient approach to your cardiac care. This means we will provide you with a close physician-patient relationship. Our doctors will know your history not just from your chart, but also through personal interaction throughout your care.

Meet the cardiologists

Ibad U. Ansari, M.D., FACC, cardiologistView profile

Dr. Ansari has been with Community Health Network since 1994; he opened an office in Martinsville, Indiana in 2005.

Education and training: Dr. Ansari served his cardiology fellowship at St. Joseph Mercy Hospital, Pontiac, Michigan. He also completed his internship and residency in internal medicine at St. Joseph Mercy Hospital. He graduated from American University of the Caribbean, Montserrat, British West Indies.

Board certifications: Internal medicine, cardiovascular disease

John Batchelder, M.D., FACC, FACP, FCCP, electrophysiologistView profile

Dr. Batchelder has been in practice since 1987 and with Community Health Network since 1990.

Education and training: Dr. Batchelder served his fellowships in cardiology and electrophysiology at the Indiana University School of Medicine, Indianapolis. His internal medicine internship was at St. Vincent Hospital, Indianapolis, and his residency in internal medicine was served at the Indiana University School of Medicine, Indianapolis. He also received his medical degree from the Indiana University School of Medicine. He graduated from Wabash College, Crawfordsville, Indiana.

Board certifications: Internal medicine, cardiovascular disease, cardiac electrophysiology

Chad Bonhomme, M.D., electrophysiologistView profile

Dr. Bonhomme joined Community Heart and Vascular in December 2009.

Education and training: Previously, he was a staff electrophysiologist and director of the EP labs at Illinois Heart and Vascular in Hinsdale, Illinois. Dr. Bonhomme completed his fellowship in cardiology at the University of Florida and his fellowship in electrophysiology at St. Luke’s Medical Center in Milwaukee, Wisconsin. He completed postgraduate training in internal medicine at St. Vincent Health Care in Indianapolis. Dr. Bonhomme graduated from the Indiana University School of Medicine.

Board certifications: Internal medicine, cardiovascular disease, cardiac electrophysiology

Sheila Gamache, M.D., FACC, cardiologistView profile

Dr. Gamache has practiced in Indiana since 1993 and is the medical director of acute care for (in the north Indianapolis area).

Education and training: Dr. Gamache served her internship and residency in internal medicine, and her fellowship in cardiology, at Methodist Hospital of Indianapolis. She was intern of the year in 1987 and served as president of the house staff council in 1989. She received her medical degree from Ithe Indiana University School of Medicine, Indianapolis. She graduated from Purdue University, West Lafayette, Indiana.

Board certifications: Internal medicine, cardiovascular disease

Waqas Ghumman, M.D., cardiologistView profile

Dr. Ghumman joined Community Heart and Vascular in October 2009. He is the executive cardiovascular disease management director and director of heart failure for Community Health Network, co-director of the cardiovascular genetics program at CHVH, and associate medical director for cardiovascular services for Community Home Health.

Education and training: Dr. Ghumman specializes in congestive heart failure and cardiac imaging. He completed his fellowship in cardiovascular disease at Krannert Institute of Cardiology in Indianapolis. He completed his internship and residency in internal medicine at Loyola Medical Center in Maywood, IL. He received his medical degree from Indiana University School of Medicine. He also holds a bachelor of science in biology from Indiana University. Dr. Ghumann was named a 2012 Indianapolis Monthly ”Top Doctor” in cardiology.

Special interests: Pulmonary hypertension, HTN, preventive cardiovascular medicine

Professional associations: Member of American Heart Association; American College of Cardiovascular Medicine; International Society of Heart and Lung Transplant; and Heart Failure Society of America. Dr. Ghumann is a former associate professor of medicine at IU where he received numerous teaching awards from IU School of Medicine (including Board of Trustees Teaching Award twice). He continues to educate and train physicians, nurses and support staff within Community Health Network.

Board certifications: Internal medicine, cardiovascular disease, heart failure, advanced heart failure (one of only 200 physicians certified in the world)

Richard A. Hahn, M.D., FACC, FACP, FCCP, cardiologistView profile

Dr. Hahn began practice in 1992 and is the medical director of wellness and prevention.

Education and training: Dr. Hahn completed his fellowship in cardiology at Methodist Hospital, where he was selected Intern of the Year and Teaching Resident of the Year. He received his medical degree from the Indiana University School of Medicine and graduated summa cum laude from the University of Notre Dame.

Board certifications: Internal medicine, cardiovascular disease

Samuel M. Hazlett, M.D., FACC, cardiologistView profile

Dr. Hazlett has been in practice since 1978.

Education and training: Dr. Hazlett served his residency and fellowship at St. Luke’s Hospital Center, Columbia University College of Physicians and Surgeons, in New York City. He also served his internal medicine residency at St. Luke’s, and earned his medical degree from the University of Rochester School of Medicine in Rochester, New York. He graduated with honors from Hamilton College in Clinton, New York.

Board certifications: Internal medicine, cardiovascular disease

Preetham Jetty, M.D., FACC, cardiologistView profile

Preetham Jetty, M.D., is the medical director of the Madison County area for Community Heart and Vascular and the chief of department of cardiology for Community Hospital Anderson.

Education and training: Dr. Jetty completed his fellowship in cardiovascular medicine at the University of Pittsburgh Health Center. He then served as a fellow in vascular intervention at West Jefferson Medical Center in Marrero Louisiana. He completed his residency in internal medicine at State University of New York at Downstate Medical Center. Dr. Jetty received his medical degree from S.V. Medical College in Tirupati, India, and was awarded the gold medal for best outgoing student.

Board certifications: Internal medicine, cardiovascular disease

Scott W. Jones, M.D., FACC, cardiologistView profile

Dr. Jones has practiced in Indiana since 1996 and is medical director for the south Indianapolis area.

Education and training: Dr. Jones completed his fellowship in cardiovascular disease at Indiana University School of Medicine in Indianapolis. He completed his internship and residency in internal medicine at Indiana University School of Medicine in Indianapolis and served an additional year as chief internal medicine resident for University Hospital. He received his medical degree from Finch University of Health Sciences, Chicago, Illinois and was awarded the Clerkship Award for outstanding academic achievement in medicine. Additionally, he earned an M.A. in Physiology from Indiana University, Bloomington. His undergraduate is from Butler University, Indianapolis, Indiana.

Board certifications: Internal medicine, cardiovascular disease

Kiran R. Kareti, M.D., cardiologistView profile

Dr. Kareti began his medical career in August 1996. He is the medical director of diagnostic testing.

Education and training: Dr. Kareti specializes in MRI and CT scans and has advanced training in cardiac magnetic resonance imaging and cardiovascular computed tomography. He served his fellowship in cardiovascular disease at the University of Florida in Jacksonville. He served his internship and residency in internal medicine at Southern Illinois University in Springfield. He graduated from Northwestern University in Evanston, Illinois.

Board certifications: Internal medicine, cardiovascular disease, cardiovascular computed tomography

Habib Komari, MD, FACC, FACCP, FACP, cardiologistView profile

Dr. Komari joined Community Heart and Vascular in July 2010. Previously, he served as the founding physician of Indiana Cardiac & Vascular Consultants (ICVC). Dr. Komari completed his cardiology fellowship in clinical/nuclear cardiology at Massachusetts General Hospital/Harvard Medical School in Boston. He also completed an adult cardiology fellowship at Tufts School of Medicine/Boston VAMC. His internal medicine residency was done at Englewood Hospital in New Jersey, which was an affiliate of Cornell Medical Center in New York. Dr. Komari received his medical degree from Aleppo Medical School in Syria.

Board certifications: Internal medicine, cardiovascular disease and nuclear cardiology

Harry G. Lim, M.D., FACC, cardiologistView profile

Dr. Lim began his practice in 1992.

Education and training: Dr. Lim completed his cardiology fellowship at Tulane University in New Orleans, Louisiana, where he received the Musser-Burch award for excellence in teaching. He served his internship and residency in internal medicine at the University of Connecticut in Hartford and Farmington, Connecticut. Dr. Lim obtained his medical degree from the University of the East in Manila, Philippines.

Board certifications: Internal medicine, cardiovascular disease, nuclear cardiology

Jo Mahenthiran, M.D., FACC, cardiologistView profile

Dr. Jo Mahenthiran is a board certified cardiologist specializing in non-invasive cardiology and in cardiac imaging. Most recently, he was an Associate Professor of Clinical Medicine and the director of cardiac imaging at Krannert Institute of Cardiology, Indiana University. Dr. Mahenthiran will serve as the director of advanced cardiac imaging. He specializes in multiple modalities of cardiac imaging including ultrasound, nuclear imaging, cardiac CT and cardiovascular MRI. He is board certified in all modes of imaging techniques.

Education and training: Dr. Mahenthiran completed his internal medicine residency, chief residency and cardiology fellowship training at Coney Island Hospital, State University of New York and at Cornell Medical Center, New York. He has also completed additional advanced cardiac imaging modalities training at St. Luke’s-Roosevelt Hospital, NY, Royal Brompton Hospital, London, UK and at the Cleveland Clinic Foundation. He obtained his medical degree from Stanley Medical College, University of Madras, India and postgraduate medical certifications from Royal College of physicians, London, UK and from the Royal College of Physicians and Surgeons, Ontario, Canada.

Board certifications: Internal medicine, cardiovascular medicine, comprehensive adult echocardiography, nuclear cardiology, cardiac computer tomography

Amrish S. Malhi, M.D., cardiologistView profile

Education and training: Dr. Amrish Malhi received his medical degree from Indiana University School of Medicine (Indianapolis, IN) after completing his undergraduate education at Indiana University (Bloomington, IN) with degrees in anthropology and biochemistry. He completed his internal medicine residency at Yale University School of Medicine/Yale New Haven Hospital (New Haven, CT) and cardiovascular disease fellowship at Henry Ford Heart and Vascular Institute/Wayne State University (Detroit, MI).

Board certifications: Internal medicine, cardiovascular disease

Krishna Malineni, M.D., electrophysiologistView profile

Dr. Malineni joined Community Heart and Vascular in 2010.

Education and training: Previously, Dr. Malineni served as an electrophysiologist at Illinois Heart and Vascular in Hinsdale. He completed his fellowship in cardiology at the Rush University Medical Center in Chicago, Illinois and his fellowship in electrophysiology at Aurora Sinai Medical Center in Milwaukee, Wisconsin. He completed postgraduate training in internal medicine at Henry Ford Hospital in Detroit., where he was chosen as chief resident. Dr. Malineni attended Wayne State University, where he earned both his medical degree and bachelor of science in biology.

Board certifications: Internal medicine, cardiovascular medicine, cardiac electrophysiology

Howard T. Morrison, M.D., FACC, cardiologistView profile

Dr. Morrison serves on the Community Heart and Vascular Board of Managers.

Education and training: Dr. Morrison served his fellowship in cardiology and his residency in internal medicine at Methodist Hospital of Indiana. He served his internship in internal medicine at Barnes Hospital, Washington University, St. Louis, Missouri. He graduated from Indiana University and the Indiana University School of Medicine.

Board certifications: Internal medicine, cardiovascular disease

Nanette Oscherwitz, M.D., cardiologistView profile

Dr. Oscherwitz has been in practice since 1997.

Education and training: Dr. Oscherwitz served her fellowships in cardiology at the University of Missouri, Kansas City, St. Luke’s Hospital, Truman Medical Center and the University of Wisconsin. She served her residency in internal medicine at Loyala University Medical Center in Chicago. Dr. Oscherwitz received her medical degree from the University of Kansas School of Medicine, Kansas City.

She is experienced in echocardiography, including transesophageal echocardiography, stress testing, Holter monitoring, and diagnostic cardiac catheterizations. She works with Maternal-Fetal Medicine's TenderHearts program to provide cardiovascular care for high-risk pregnant women. This includes patients with hypertension, dysrhythmias, congenital heart disease, both treated and untreated, as well as a host of other health challenges unique to the pregnant patient.

In her spare time, Dr. Oscherwitz stays busy with her three boys and is an avid tennis player. She enjoys spending time at their schools as a volunteer, as well as serving on the Wellness Committee for the Carmel Clay School District. She and her husband enjoy traveling whenever possible. Cody, a beautiful Golden Doodle, Rocky, a yellow-footed tortoise, and Payton and Eli, claw-toed African frogs, make up the rest of her family!

Board certifications: Internal medicine, cardiovascular disease

Karamchand Paul, M.D., FACC, cardiologistView profile

Dr. Paul serves on the Community Heart and Vascular Board of Managers.

Education and training: Dr. Paul completed a four-year cardiovascular fellowship at the University of Cincinnati. He served his internship and residency in both internal medicine and pediatrics at Yale New Haven and Bridgeport Hospitals in Connecticut. He completed a post-doctoral research fellowship in the division of transplantation at Yale University, New Haven, Connecticut. He graduated summa cum laude with a bachelor of arts and master of science degrees from the University of Bridgeport, Connecticut, and from Kasturba Medical College, Mangalore, India.

Board certifications: Internal medicine, cardiovascular disease

Emily Rose, M.D., electrophysiologistView profile

Dr. Rose joined Community Heart and Vascular in June 2011, specializing in clinical cardiac electrophysiology.

Education and training: Dr. Rose attended Brown University earning her bachelor of science degree in neurobiology. She received her medical degree at the University of California, San Francisco School of Medicine. She completed postgraduate training in internal medicine at Brigham and Women’s Hospital. Dr. Rose completed her fellowship in cardiology at the New York University Medical Center and recently completed her fellowship in electrophysiology at the New York University Medical Center. She is a member of the Heart Rhythm Society and has a particular interest in genetic cardiac arrhythmic disease.

Board certifications: Internal medicine, cardiovascular disease, cardiac electrophysiology

Jennifer Davel Sams, M.D., cardiologistView profile

Dr. Sams joined Community Health Network in March 2009.

Education and training: Dr. Sams specializes in congestive heart failure and non-invasive cardiac imaging. She completed her fellowship in cardiovascular disease at the Indiana University School of Medicine. She also completed her internship and residency in internal medicine at Indiana University School of Medicine and served an additional year as chief internal medicine resident for the VA Roudebush Hospital. Dr. Sams received her medical degree from Duke University School of Medicine in Durham, North Carolina. She graduated from Duke University with a bachelor of science in chemistry.

Board certifications: Internal medicine, cardiovascular disease

Proud sponsors

  • Indiana Fever
  • Indianapolis Indians
  • Indiana Pacers
  • Sarah Fisher Hartman Racing
  • Indy Eleven
  • Indy Fuel

Health and wellness shopping

  • Home Health Medical online store for medical supplies and equipment
  • Wellspring Pharmacy
  • FigLeaf Boutique
  • Jasmine gift shop