Mark B Lewin, MD

Mark B Lewin, MD

Cardiology, Fetal Care and Treatment Center, Vascular Anomalies, Neuromuscular Program

On staff since February 2001

Children's Title: Division Chief, Cardiology; Co-Director, Heart Center; Medical Director, Fetal Care and Treatment Center

Academic Title: Professor

Foundation Title: Thomas Bradley Armstrong Endowed Chair in Pediatric Cardiology

Research Center: Center for Clinical and Translational Research, Center for Integrative Brain Research

  • Biography

    Mark B. Lewin, MD, is chief in the Division of Cardiology, director of the Prenatal Center and co-director of the Cardiac Ultrasound Program at Seattle Children’s Hospital. He is professor in the Department of Pediatrics and adjunct associate professor in the Department of Obstetrics and Gynecology at the University of Washington School of Medicine. He is co-director of Seattle Children’s Heart Center.

    He directs the regional fetal echocardiography service and the statewide echocardiography telemedicine service. Lewin’s clinical responsibilities at Seattle Children’s include general cardiology, transesophageal echocardiograms, echocardiography and cardiovascular genetics clinics. Lewin mentors pediatric cardiology fellows, as well as residents in pediatrics who have a special interest in cardiology or genetics.

  • Patient Testimonials

    • Emily Granite Falls, Washington 11.30.23

      Dr. Lewin has been my cardiologist for twenty years. He known me since I was in my mom's stomach. He is respectful, kind, empathetic, caring, intelligent and overall a amazing human being. He is the reason why I am alive today. If it wasn't for him, I wouldn't be alive. Before I was born, my heart was having issues. After I was born, Dr. Lewin found out that I had a hole in my heart, so at 11 days old I had my first open heart surgery. The cardiac surgeons fixed the hole with a patch. When I was six years old, the patch was leaking so I had to go in for my second heart surgery so the surgeons can fix it and they did. Dr. Lewin is the type of person that will make sure your heart is strong and healthy! He cares for the people's well being and he will make sure that your heart is doing amazing. If he notices something wrong with your heart, he will make sure that the cardiac surgeons or the cardiac catherization team fix it so the heart is all better. I am almost 21 so I now have to find a different cardiologist that works with adults but that's alright because I know Dr. Lewin will find someone that will take amazing care of me and my heart. I will forever be thankful for Dr. Lewin and the amazing work he has done. I will miss him. If anyone needs a cardiologist that will do amazing job of taking care of you, Dr. Lewin is the one.

    • Paola BOTHELL, WA 12.27.21

      I have no words to describe my appreciation for Dr. Lewin. He has been seeing our little for the past 2 years. His bedside manner is excellent. He is very empathetic and genuine. We were thinking about relocating to a different state but decided no to because we do not want to be seen by another physician.

  • Awards and Honors

    Award Name Award Description Awarded By Award Date
    SEATTLE TOP DOCTOR - 2022 Seattle Magazine 2022
    Seattle Top Doctor - 2019 Seattle Magazine 2019
    SEATTLE'S TOP DOCTOR - 2018 Seattle Magazine 2018
    SEATTLE'S TOP DOCTOR - 2017 Seattle Magazine 2017
    SEATTLE MAGAZINE TOP DOCTOR - 2016 Seattle Magazine 2016
    Seattles Top Doctor 2016 Seattle Met Magazine 2016
    SEATTLE MAGAZINE TOP DOCTOR - 2015 Seattle Magazine 2015
    SEATTLE'S TOP DOCTOR - 2015 Seattle Met Magazine 2015
    SEATTLE MAGAZINE TOP DOCTOR - 2014 Seattle Magazine 2014
    SEATTLE'S TOP DOCTOR - 2014 Seattle Metropolitan Magazine 2014
    Seattle's Top Doc Seattle Met Magazine 2013
    Seattle Magazine Top Doctor - 2013 Seattle Magazine 2013
    Seattle Magazine Top Doctor - 2012 Seattle Magazine Top Doctor - 2012 Seattle Magazine 2012
    U.S. News Top Doctor U.S. News and World Report 2012
     Top Doctor - Seattle Magazine Seattle Magazine Jan 1, 2009
  • Publications

    Other Publications

    • Schaefer BM, Lewin MB, Stout KK, Byers PH, Otto CM
      Usefulness of bicuspid aortic valve phenotype to predict elastic properties of the ascending aorta.
      17317372 The American journal of cardiology, 2007 Mar 1 : 686-90
    • Power PD, Lewin MB, Hannibal MC, Glass IA
      Aortic root dilatation is a rare complication of Noonan syndrome.
      16830086 Pediatric cardiology, 2006 July : 478-80
    • Salerno JC, Cailes CD, Lewin MB
      Nontraumatic pericardiophrenic defect with tamponade.
      17041710 Texas Heart Institute journal / from the Texas Heart Institute of St. Luke's Episcopal Hospital, Texas Children's Hospital, 2006 : 404-5
    • Lewin MB, Otto CM
      The bicuspid aortic valve: adverse outcomes from infancy to old age.
      15723989 Circulation, 2005 Feb 22 : 832-4
    • Lewin MB, McBride KL, Pignatelli R, Fernbach S, Combes A, Menesses A, Lam W, Bezold LI, Kaplan N, Towbin JA, Belmont JW
      Echocardiographic evaluation of asymptomatic parental and sibling cardiovascular anomalies associated with congenital left ventricular outflow tract lesions.
      15342840 Pediatrics, 2004 Sept. : 691-6
    • Lewin MB, Glass IA, Power P
      Genotype-phenotype correlation in congenital heart disease.
      15096954 Current opinion in cardiology, 2004 May : 221-7
    • Kung GC, Lewin MB, Mott AR, Bezold LI
      Functional acquired pulmonary atresia secondary to subpulmonary aneurysmal tissue: a rare form of pulmonary outflow tract obstruction.
      14981430 Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography, 2004 March : 284-5
    • Laird TH, Stayer SA, Rivenes SM, Lewin MB, McKenzie ED, Fraser CD, Andropoulos DB
      Pulmonary-to-systemic blood flow ratio effects of sevoflurane, isoflurane, halothane, and fentanyl/midazolam with 100% oxygen in children with congenital heart disease.
      12401594 Anesthesia and analgesia, 2002 Nov. : 1200-6, table of contents
  • Research Funding

    Grant Title Grantor Amount Award Date
    The Marfan Trial NHLBI $350,000.00 Jan 1, 2008


Board Certification(s)

Pediatric Cardiology

Medical/Professional School

Keck School of Medicine at USC, Los Angeles, CA


Children's Hospital of Los Angeles, Los Angeles, CA


Baylor/Texas Children's Hospital Pediatric Cardiol, Houston, TX

Clinical Interests

Echocardiography, fetal cardiac diagnosis, cardiovascular genetics

Research Description

Cardiac imaging, fetal cardiology, cardiac genetics

Research Focus Area