Marlene Williams
Experienced in Heart Failure with Preserved Ejection Fraction (HFpEF)

Dr. Marlene Williams

Cardiology
Johns Hopkins Medicine
Johns Hopkins Bayview Medical Center
Baltimore, MD 

Experienced in Heart Failure with Preserved Ejection Fraction (HFpEF)
Johns Hopkins Medicine
Johns Hopkins Bayview Medical Center
Baltimore, MD 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Dr. Marlene Stephanie Williams is an Associate professor at the Johns Hopkins University School of Medicine. Her research focuses on coronary atherosclerosis and platelet function, and her particular focus is on platelet function as it relates to the acute coronary syndrome. Dr. Williams has examined platelet function and its correlation to platelet functional genomics and runs a platelet physiology laboratory on the Johns Hopkins Bayview campus. The goal for her cardiovascular platelet laboratory has been to identify the etiology of platelet dysfunction in many disease states and apply methods that may improve this dysfunction that may eventually be translated to therapies for patients with cardiovascular disease. She is a prior recipient of an NIH career mentored award (K23) examining platelet functional genomics and an NIH RO1 award addressing platelet serotonin signaling in depression and heart disease. Dr. Williams has several publications covering platelet functional changes in settings of interventional cardiology, acute coronary syndrome, and heart disease and depression. She has participated in several NHLBI advisory committees, review groups, and study sections. Dr. Williams has been the Course Director, of the advanced clinical clerkship in coronary intensive care at the Bayview Medical center and has mentored many medical residents and cardiology fellows. Dr. Williams received her undergraduate degree in biochemistry from McGill University. She earned a medical degree from the Columbia University College of Physicians & Surgeons and completed a residency at Johns Hopkins Hospital. After completing a residency, Dr. Williams was a cardiology fellow at Mount Sinai Hospital and Johns Hopkins Hospital. Dr. Williams is currently the Clinical Director of Cardiology at Johns Hopkins Bayview Medical Center.

Dr. Williams is rated as an Experienced provider by MediFind in the treatment of Heart Failure with Preserved Ejection Fraction (HFpEF). Her top areas of expertise are Heart Attack, Apoplexy, Arterial Embolism, Pacemaker Implantation, and Hormone Replacement Therapy (HRT).

Her clinical research consists of co-authoring 44 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Residency
Johns Hopkins University School of Medicine, Internal Medicine, 1995
Specialties
Cardiology
Licenses
Internal Medicine in MD
Board Certifications
American Board Of Internal Medicine
Fellowships
Johns Hopkins University School of Medicine, Cardiology, 1999
Mount Sinai Hospital, Cardiology, 1998
Hospital Affiliations
The Johns Hopkins Hospital
Johns Hopkins Bayview Medical Center
Languages Spoken
English
French
Gender
Female

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
First Health
  • INSURANCE PLAN
  • MEDICARE PDP
  • PPO
Geisinger
  • HMO
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Johns Hopkins Healthcare
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE-MEDICAID PLAN
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
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Locations

Johns Hopkins Bayview Medical Center
Suite 3300, Baltimore, MD 21224
Call: 443-997-0270

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


44 Total Publications

Toward Standardized Cardiac Imaging in Obstetric Care: The Need for Pregnancy-Specific Echocardiographic Reference Values.
Toward Standardized Cardiac Imaging in Obstetric Care: The Need for Pregnancy-Specific Echocardiographic Reference Values.
Journal: Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
Published: November 17, 2025
View All 44 Publications
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Chiadi Ndumele
Distinguished in Heart Failure with Preserved Ejection Fraction (HFpEF)
Dr. Chiadi Ndumele
Cardiology
Distinguished in Heart Failure with Preserved Ejection Fraction (HFpEF)
Dr. Chiadi Ndumele
Cardiology

Johns Hopkins Outpatient Center

601 North Caroline Street, Suite 7200, Suite 7200, 
Baltimore, MD 
 (1.2 miles away)
443-997-0270
Languages Spoken:
English
See accepted insurances

Dr. Chiadi Ndumele is the Director of Obesity and Cardiometabolic Research, Director of the Heart Failure Prevention Program and Associate Professor of Medicine and Epidemiology in the Division of Cardiology at Johns Hopkins University. Dr. Ndumele is a preventive cardiologist with doctorate level training in epidemiology, who leads a research program related to characterizing the relationship of obesity and cardiometabolic risk factors with the development of cardiovascular disease, with a particular focus on heart failure risk, and to refining strategies for cardiovascular disease prevention. His work additionally addresses the impact of social determinants of health on cardiometabolic risk factors and downstream cardiovascular outcomes. Dr. Ndumele received his M.D. from Harvard University and his Internal Medicine training at Brigham and Women’s Hospital, where he also served as Chief Medical Resident. He subsequently trained in Cardiology at Johns Hopkins University, where he was also Chief Cardiology Fellow in his final year and where he also received his MHS and PhD in Epidemiology. Dr. Ndumele’s research has been supported by multiple grants from the NIH, Robert Wood Johnson Foundation and the American Heart Association (AHA). He is Chair of the Council on Lifestyle and Cardiometabolic Health of the AHA, Past Chair of the AHA Obesity Committee, and Co-Chair of the AHA Cardiovascular-Kidney-Metabolic Health Initiative. Dr. Ndumele is rated as a Distinguished provider by MediFind in the treatment of Heart Failure with Preserved Ejection Fraction (HFpEF). His top areas of expertise are Atherosclerosis, Heart Failure, Heart Failure with Preserved Ejection Fraction (HFpEF), and Metabolic Syndrome.

Virginia Hahn
Distinguished in Heart Failure with Preserved Ejection Fraction (HFpEF)
Dr. Virginia Hahn
Cardiology
Distinguished in Heart Failure with Preserved Ejection Fraction (HFpEF)
Dr. Virginia Hahn
Cardiology

JH Health Care & Surgery Center – White Marsh

4924 Campbell Boulevard, Suite 110, Suite 110, 
Nottingham, MD 
 (8.6 miles away)
443-997-0270
Languages Spoken:
English
See accepted insurances

Virginia Shalkey Hahn, M.D., is a cardiologist specialized in caring for patients with cardiomyopathy and heart failure. Dr. Hahn received her medical degree from the Perelman School of Medicine at the University of Pennsylvania in 2012. She was a Sarnoff Fellow at Johns Hopkins University School of Medicine. She completed internal medicine residency at the Hospital of the University of Pennsylvania and cardiology/advanced heart failure fellowship at Johns Hopkins Hospital, where she was the Marie-Josée and Henry R Kravis Chief Cardiology Fellow. Dr. Hahn's research is focused on translational studies in heart failure using bioinformatics tools and functional assays. She has won several awards and grants for her research. Dr. Hahn is rated as an Advanced provider by MediFind in the treatment of Heart Failure with Preserved Ejection Fraction (HFpEF). Her top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Heart Failure, Heart Attack, and Apoplexy.

Distinguished in Heart Failure with Preserved Ejection Fraction (HFpEF)
Dr. Amit Varma
Cardiology
Distinguished in Heart Failure with Preserved Ejection Fraction (HFpEF)
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The Heart Group Of Lancaster General Health

217 Harrisburg Avenue, 
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 (53.9 miles away)
717-544-8300
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Amit Varma is a Cardiologist in Lancaster, Pennsylvania. Dr. Varma is rated as a Distinguished provider by MediFind in the treatment of Heart Failure with Preserved Ejection Fraction (HFpEF). His top areas of expertise are Heart Failure, Heart Failure with Preserved Ejection Fraction (HFpEF), Pulmonary Edema, Cardiac Ablation, and Pacemaker Implantation. Dr. Varma is currently accepting new patients.

VIEW MORE HEART FAILURE WITH PRESERVED EJECTION FRACTION (HFPEF) DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

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Find Dr. Williams's expertise for a condition
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    • Distinguished
    • Apoplexy
      Dr. Williams is
      Distinguished
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    • Heart Attack
      Dr. Williams is
      Distinguished
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    • Advanced
    • Acute Coronary Syndrome
      Dr. Williams is
      Advanced
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    • Arterial Embolism
      Dr. Williams is
      Advanced
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    • Atrial Fibrillation
      Dr. Williams is
      Advanced
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    • Brugada Syndrome
      Dr. Williams is
      Advanced
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    • Coronary Heart Disease
      Dr. Williams is
      Advanced
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    • Heart Failure
      Dr. Williams is
      Advanced
      . Learn about Heart Failure.
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    View All 10 Advanced Conditions
    • Experienced
    • Angina
      Dr. Williams is
      Experienced
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    • Aortic Valve Stenosis
      Dr. Williams is
      Experienced
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    • Arrhythmias
      Dr. Williams is
      Experienced
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    • Atherosclerosis
      Dr. Williams is
      Experienced
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    • Atrial Septal Defect (ASD)
      Dr. Williams is
      Experienced
      . Learn about Atrial Septal Defect (ASD).
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    • Atrial Tachycardia
      Dr. Williams is
      Experienced
      . Learn about Atrial Tachycardia.
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    View All 42 Experienced Conditions
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