Skip Navigation

COVID-19 Update

Due to interest in the COVID-19 vaccines, we are experiencing an extremely high call volume. Please understand that our phone lines must be clear for urgent medical care needs. We are unable to accept phone calls to schedule COVID-19 vaccinations at this time. When this changes, we will update this website. Our vaccine supply remains limited. Read all COVID-19 Vaccine Information.

Patient Care Options | Visitor Guidelines | Coronavirus Information | Self-Checker | Get Email Alerts

William John Ravekes, M.D.

Headshot of William John Ravekes
  • Medical Director for Pediatric Heart Transplant
  • Associate Professor of Pediatrics


Cardiology, Congenital Heart Disease, Fetal Cardiology, Fetal Echo, Heart Failure, Pediatric Cardiology, Pediatric Heart Transplant more

Research Interests

Fetal echocardiography; 3-D fetal echo; Perioperative and intensive care of the fetus, infant, child and adult with congenital heart disease more

Request an Appointment

Insurance Information

Maryland Phone


Outside of Maryland

Request Appointment

International Patients

Request Appointment


The Johns Hopkins Hospital (Main Entrance)

Appointment Phone: 443-997-5437
1800 Orleans St.
The Charlotte R. Bloomberg Children's Center Building, Pediatric Cardiology, M2201
Baltimore, MD 21287 map


Dr. William J. Ravekes is an associate professor of pediatrics at the Johns Hopkins University School of Medicine. A pediatric cardiologist, Dr. Ravekes serves as medical director of the Pediatric Heart Transplant and Mechanical Circulatory Support Program. He also specializes in non-invasive imaging, fetal echocardiography and the perioperative and intensive care of fetuses, infants, children and adults with congenital heart disease.

Dr. Ravekes earned his medical degree at the George Washington University School of Medicine. He completed a pediatrics residency and chief residency at Lucile Salter Packard Children's Hospital at Stanford and a fellowship in pediatric cardiology at Boston Children’s Hospital. He served on the faculty of Texas Children’s Hospital prior to joining Johns Hopkins.

He is certified by the National Board of Medical Examiners, the and the American Board of Pediatrics Sub-Board in Cardiology.

His research interests include echocardiographic assessment of cardiac function, aortopathies, heart transplant and medical education. He has published more than 50 scholarly articles. more


  • Medical Director for Pediatric Heart Transplant
  • Associate Professor of Pediatrics

Departments / Divisions

Centers & Institutes



  • MD; The George Washington University School of Medicine (1992)


  • Pediatrics; Lucile Salter Packard Children's Hospital at Stanford (1996)


  • Pediatric Cardiology; Childrens Hospital (1999)

Research & Publications

Clinical Trials

Allogeneic hMSC Injection in Patients with Hypoplastic Left Heart Syndrome (ELPIS)

Selected Publications

Koestenberger M, Nage B, Ravekes W, Avian A, Burmas A, Grangl G, Cvirn G, Gamillscheg A. “Right Ventricular Outflow Tract Velocity Time Integral Determination in 570 Healthy Children and in 52 Pediatric Atrial Septal Defect Patients.” Pediatr Cardiol. 2015 Mar 6. [Epub ahead of print]

Koestenberger M, Pansy J, Ravekes W. “Isovolumic acceleration measurement at the lateral tricuspid annulus: a promising parameter in pediatric right heart function determination.” Echocardiography. 2015 Mar;32(3):610. doi: 10.1111/echo.12818. No abstract available.

Lacro RV, Dietz HC, Sleeper LA, Yetman AT, Bradley TJ, Colan SD, Pearson GD, Selamet Tierney ES, Levine JC, Atz AM, Benson DW, Braverman AC, Chen S, De Backer J, Gelb BD, Grossfeld PD, Klein GL, Lai WW, Liou A, Loeys BL, Markham LW, Olson AK, Paridon SM, Pemberton VL, Pierpont ME, Pyeritz RE, Radojewski E, Roman MJ, Sharkey AM, Stylianou MP, Wechsler SB, Young LT, Mahony L; Pediatric Heart Network Investigators. “Atenolol versus losartan in children and young adults with Marfan's syndrome.” N Engl J Med. 2014 Nov 27;371(22):2061-71. doi: 10.1056/NEJMoa1404731. Epub 2014 Nov 18.

Koestenberger M, Nagel B, Ravekes W, Avian A, Cvirn G, Rehak T, Gamillscheg A. “Reference values of the mitral annular peak systolic velocity (Sm) in 690 healthy pediatric patients, calculation of Z-score values, and comparison to the mitral annular Plane systolic excursion (MAPSE).” Echocardiography. 2014 Oct;31(9):1122-30. doi: 10.1111/echo.12541. Epub 2014 Feb 7.

Koestenberger M, Nagel B, Ravekes W, Avian A, Burmas A, Grangl G, Cvirn G, Gamillscheg A. “Reference values and calculation of z-scores of echocardiographic measurements of the normal pediatric right ventricle.” Am J Cardiol. 2014 Nov 15;114(10):1590-8. doi: 10.1016/j.amjcard.2014.08.028. Epub 2014 Aug 27.

Contact for Research Inquiries

1800 Orleans Street
M2314 Bloomberg Children's Center
Baltimore, MD 21287 map

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

  • ...Loading ratings...
  • ... 
  • ... 
  • ... 
  • ... 
  • ... 


Is this you? Edit Profile
back to top button